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Construction Forecast Update May 2025
The total construction spending forecast, now at $2,237bil, +3.7% vs. 2024, has been lowered a bit since the Outlook in Feb. ($2,272bil, +5.5%). Most of the reduction is in Residential, from $997bil, +7.2% down to $958bil, +3.0%. Nonres Bldgs was reduced by $11bil and Nonbldg increased by $7bil. Compared to the average for the year 2024, current total spending YTD is up 2.6%, but is expected to pick a little up throughout the year across all sectors.
Constant $ growth is forecast down 0.7% in 2025 and down more after that. Inflation Index shows annual percent and index to base 2024 = 100. All years, current spending / index = reported as constant 2024$, as if all constant years are the same 2024$.
Residential Single Family spending has been in a range +/- 2.5% for the last 7 months. With only a few months lower than that, this range extends back 18 months. Take out 3%/yr inflation and you can see that SF volume has been flat to down. Multi-family spending, for the last 12 months, is down 15% off recent highs in Q1’24. Reno/repair spending extended recent highs across 5 months in mid 2024, before falling off 10% in Q4, and now, in Q1’25 it has gained back most of that drop. Any spending gains in the near future would be driven by multi-family.
Manufacturing is still the largest $ contributor ($222bil/yr) to nonresidential bldgs total spending ($772bil/yr), but has fallen 6% in the last 5 months. The trend is down in most months for 2025 and down in 2026. This decline is entirely expected and you can read about it in my article, The Manufacturing Taper.
Data Centers shows the largest % spending growth for 2025, forecast +39%, continuing on a phenomenal streak of +45% in 2023 and +56% in 2024. Data Center starts increased 300% over the previous 3 yrs. and still increase in 2025 and 2026, but at a slower rate of growth. Manufacturing spending peaked in Oct’24. Data Center spending continues to increase for the next few years. Both of these forecasts take into account some cancelations or delays announced recently (see May Briefs), however do not account for any major stoppages due to recent trade impacts.
The largest $ increases in spending are Power, forecast to increase +$16bil, and Highway +$13bil. Educational spending is forecast to post the largest nonres bldgs $ growth in 2025 (+$12bil, +9%). Data Centers increase $10bil.
This same scenario that looks to occur in Manufacturing will occur also in Highway/Bridge. Normal starts were about $100bil/yr, with slow growth. But for the last 3 years, actual starts totaled closer to $500bil for the 3 years or $167bil/yr. This strong growth in starts is expected to continue at least into 2025, totaling near $650bil for 4 years. Again, consider that part of that is inflation, but the remainder is government investment growth. So a decline from the taper back to normal for Highway/Bridge may not show up at least for the next few years. But once the taper begins it will have the same effect on Nonbldg Infrastructure spending that we will see from Mnfg in Nonres Bldgs.
Typical jobs growth is 2.5% to 3.5% per year, even though spending can sometimes far outpace that. But jobs growth doesn’t track spending, it tracks volume growth. Volume is spending minus inflation. For example, for the 4 years 2021 thru 2024, spending increased 44%. But inflation increased 33%. Volume growth was only 11%. Jobs increased 12.5%. For 2025, Inflation will outpace spending growth by 1%, but jobs are still expected to increase by 1.5%. Rarely do jobs decrease. That could change.
There are 870K construction jobs in TX. 500K are immigrants and 300K are undocumented.
New starts are forecast up in 2025, but I would caution there are a lot of headwinds that could slow new starts growth. Many economists predict the current trade impacts will slow overall economic growth. That in turn could slow capital expenditures, which, in this case, is new construction starts. So far year-to-date, spending is outpacing new starts growth. That means backlog is decreasing, mostly in nonresidential buildings. We haven’t seen a decrease in Nonres Bldgs backlog since pre-2011. Residential backlog is down slightly. Nonbuilding is increasing.
See Also Construction Briefs May 2025
and Construction Briefs Apr 2025
5-15-25 all ppi DATA UPDATED TO APR See Construction Inflation 2025
I’ve increased the inflation outlook since Feb to a range of 4.5% to 5%. Inflation may be the most uncertain of all factors affecting construction this year. We have yet to see any significant impact from tariffs, and there is sure to be impacts to many construction inputs. We may not know the total impact for several more months. But I would expect, if anything, inflation will go up from here, not down.
The bees are swarming the flowers outside. At least some lifeform is content and at peace with this world.
Construction Briefs Apr 2025
Tariff actions are not yet reflected in Feb PPI Inputs or PPI Final Demand index. Still early. Also remember, PPI does not include imports or tariffs on imports. When we do see movement in the PPI, it reflects domestic pricing decisions following on tariffs.
Lutnick: “Foreign goods may become a little more expensive, but domestic goods do not.” FALSE see next par.
PPI Excludes Imports/Tariffs. The 2018 steel tariffs of +25% applied on imported steel. However the 2018 PPI data shows that the cost of ALL DOMESTIC steel mill products (of all types) produced in the US increased 18% in 2018, after the steel tariffs were imposed.
If tariffs, for example, affect only 10% or 20% of products used in the industry, then the PPI shows us the domestic producers reaction to tariffs, which gets applied to the other 80% to 90% of product. For instance all steel is not imported, so not all steel will experience a tariff. The point here is that tariffs impact pricing decisions on all domestically produced products, not just the imported products. Consumers pay the price.
Impacts on Construction Inflation and Spending (guesstimates).
2021 inflation was 8%-14%. 2022 it was 12%-17%. Could 2025 repeat 2022? Yes. Will it? ??? I guess it hits 6%-10%.
I’m guessing some projects contributing to 2025 spending will be canceled/postponed. So maybe spending drops 5% from here, to zero growth. Construction spending annual growth is normally in the range 4% to 10%. 2025 and 2026 were both forecast at 5% to 7%. No doubt some projects will be canceled or mothballed. So the next 3 yrs spending gets reduced, and cost gets increased.
I’m beginning to think one of the first issues we have to deal with is supply shortages. All types of imported products are not going to be available, and there aren’t enough domestic products to replace them. This will add delays and cost to building projects.
Yeears ago, when I was a construction cost estimator, a major client would run numbers on a proposed new building project. If it couldn’t balance a ROI in 7 yrs, project would not move forward. As cost to build increases, it becomes harder to hit ROI. This supports that some projects may be canceled or postponed.
- Construction – What to Watch
- Cost to build going up
- Cost to finance is up
- Product availability in question
- Product delivery schedule delays
- Margins pressured
- Small/Midsize firms squeezed
- Labor let go/disappearing
- Projects in planning, delayed
- Project ROI not met
- Projects planned, canceled
Virginia has the largest concentration of Data Centers in the U.S. Virginia is projecting energy shortages due to the extreme demand DCs put on power grids. If you don’t build out the energy grid, the data centers put too great a demand on the current grid. “There are six states in the United States where data centres already consume over 10% of the electricity supply, with Virginia leading at 25%.” https://www.iea.org/reports/energy-and-ai/understanding-the-energy-ai-nexus
In the Q1 pre-tariff outlook, Data Center spending (SAAR), began the year 16% above the avg of 2024, is steadily climbing at 1.5% to 2%/mo., and sometimes more, is now up 22% vs avg 2024. By midyear the rate of spending will be up 28%. Data Center spending increased 45% in 2023 and 56% in 2024. Forecast for 2025 +37%. Obviously, this could get reduced if/when some projects get canceled.
The New Albany (Ohio) project, projected worth $1bil, is one of the two announced DC projects that have been halted https://www.nbc4i.com/news/local-news/licking-county/microsoft-pulls-out-of-licking-county-projects/
What if: A 10%/yr reduction in forecast new Data Center starts in 2025 and 2026 would result in reduced Data Center construction spending by -3% in 2025, -7% in 2026, -7% in 2027 and -3% in 2028.
What if: A 10%/yr reduction in forecast new Data Center starts in 2025 and 2026, combined with a 10% cancelation of 2024 starts, would result in reduced Data Center construction spending by -8% in 2025, -10% in 2026, -8% in 2027 and -3% in 2028. A 10% drop in Data Center spending is $4bil/yr.
It is not clear if the two halted projects mentioned in the article above were already committed construction starts or future proposed starts.
The Fed Chair just said what every credible economist, every economics textbook, and every empirical study shows: Tariffs reduce output and raise prices. – Justin Wolfers, Econ professor at Michigan, Senior fellow, Brookings and PIIE.
Let’s not forget what initiated growth in new manufacturing facilities. New manufacturing building contract starts over the last 3yrs is just over $600bil. Normal starts without government investment would be about $300bil over 3yrs. About $100bil of spending growth over the 3 years is inflation, leaving the remainder of about $200bil in spending growth attributed to government investment. All that began, and most of it got spent, under the previous administration. https://www.forbes.com/sites/courtneyfingar/2024/12/12/manufacturing-jobs-boom-arrives-too-late-for-biden-to-benefit/
Whenever we get an unusually large increase in new construction starts and spending, the tapering off of those projects leads to a decline on the tail end. Mnfg new starts peaked in 2022-2023. We are entering the period of the manufacturing construction spending taper. Mnfg spending has fallen slightly in 4 of the last 5 months. The forecast for 2025 is down -10%.
Microsoft has announced a pullback in spending on new Data Centers. Reduced demand negates need for new facilities, kills expansion plans, lowers new construction forecast, decreases jobs growth in construction. Mothball if partially built factory, not only expensive for owner, but also negative impact to contractor’s forecast revenues.
Whenever there’s a devastating natural disaster, causing destruction to homes, property and infrastructure, the supply of contractors, laborers and materials stays the same while demand skyrockets from victims trying to rebuild. Contractors generally pick more profitable projects over less lucrative ones.
In the Construction Analytics Outlook Feb 2025 report I said, “Don’t be surprised if 2025 construction jobs growth slows a bit. Jobs are slightly ahead of volume growth, particularly in the Non-building Infrastructure sector.”
Construction gained 19k (+0.2%) jobs in Feb, BUT total hours worked declined 0.3%. Total jobs have increased but Hrs worked has gone down the last 5 months. We’ve posted minor jobs gains in both Jan and Feb, and yet unemployment has gone up from 5.2% in Dec to 7.2% in Feb.
The March jobs report shows only minor gains in the # of jobs. We’ve added only 24,000 new jobs in the 1st quarter, the slowest 1st qtr jobs growth in 13 years (except for 2020, Covid). But hours worked in March increased by 1.5%. That acts on the entire 8.3 million workforce and is equivalent to adding 128,000 more jobs.
The jobs numbers reported April 4th cover the period from Feb15-Mar15. There are not yet any impacts from tariffs reflected in the jobs numbers.
We may see the term “force majeure” come up a lot in the near future. And if construction contracts don’t have a force majeure clause, there may be a lot of contractors in trouble.
My guess is if the people of Greenland take a vote to Join the United States, it would be 99-1 No. Of course, they would say “No, thank you.” As they so eloquently put it, “We’re not assholes.”
Construction Inflation & PPI 2025 updated 10-17-25
11-13-25 See new post Construction Inflation 2025 Update Nov. for all new index tables and plots update dates vary from July, Aug to Q3.
10-17-25 Residential Index reduced and minor reduction in Nonres Bldgs Index, see notes in Construction Analytics Building Cost Indices and Reference Indices. The tables and plots included data only thru July.
9-3-25 Updated PPI tables and plots to JULY data issued 8-15-25.
5-15-25 all ppi DATA UPDATED TO APR
2-21-25 All new data updated to Q4. A major change with this new data / plots, is the change in the base date from 2019 to 2024. These index tables / data cannot be mixed with prior issues. Now using base 2024 = 100 in all data / plots included here. Percents yr/yr or mo/mo don’t change, the indexes change.
To properly adjust the cost of construction over time you must use an Actual Final Cost Inflation Index, otherwise called a selling price index. General construction cost indices and Input price indices that don’t track whole building final cost do not capture the full cost of escalation in construction projects.
Spending Must Be Adjusted by Inflation
Usually, construction budgets are prepared from known “current” costs. If a budget is being developed for a project whose midpoint of construction costs is two years in the future, you must carry in your budget an appropriate inflation factor to represent the expected cost of the building at that time. Why the midpoint? Because half the project cost occurs prior to that point and half occurs later than that. Actually, the midpoint of spending is 50-60% into the schedule, but the calculation to the midpoint of schedule is close. So, the average inflation for the project includes early contracts that have less inflation than average and also later contracts that would have more than the average inflation. Construction inflation should always be calculated from current cost to midpoint of construction, or in the case of using historical data and converting an older actual cost to a future budget, from midpoint to midpoint.
Any time a construction project is delayed or put on hold to start at some future date, construction cost inflation must be calculated and added to the previous budget to account for the unanticipated cost increase due to the delay. Of utmost importance is using appropriate cost indices and forecasting future cost growth to account for the difference in original budget and revised budget.
Besides the estimator’s need to accurately reflect future expected cost, inflation is an important aspect of the company business plan. Typically discussed in tandem with spending, inflation has an impact on tracking and forecasting company growth. All spending includes inflation, but inflation adds nothing except $ signs to the overall growth. For example, in a year when company revenues (spending) increase by 10%, if inflation is 6%, then total business growth is only 4%. To accurately calculate growth, and the need for labor to support that growth, spending must be adjusted by the amount of inflation.
Since 2011, Nonres Bldgs inflation is 4.8%, Residential is 5.4% and Non-bldg is 3.9%. But those averages include the unusually high inflation years of 2021 and 2022. Without those two years, since 2011, average inflation for Nonres Bldgs is 3.8%, Residential is 3.8% and Non-bldg is 2.4%.
2025 Inflation Forecast, Nonres Bldgs +4.0%, Residential +4.7% and Non-bldg +4.0%.
5-15-25 2025 Inflation Forecast, Nonres Bldgs +4.4%, Residential +5.0% and Non-bldg +4.3%.
Types of Construction Inflation Indices
General construction cost indices and Input price indices that don’t track whole building final cost do not capture the full cost of inflation on construction projects.
Consumer Price Index (CPI), tracks changes in the prices paid by consumers for a representative basket of goods and services, including food, transportation, medical care, apparel, recreation, housing. The CPI index in not related at all to construction and should not be used to adjust construction pricing.
Producer Price Index (PPI) for Construction Inputs is an example of a commonly referenced construction cost index that does not represent whole building costs. The PPI tracks material cost inputs at the producer level, not prices or bids at the as-built level.
Engineering News Record Building Cost Index (ENRBCI) and RSMeans Cost Index are examples of commonly used indices that DO NOT represent whole building costs yet are widely referenced by construction firms and estimators everywhere to adjust project costs. Neither includes contractor margins.
It should be noted, there are far fewer available resources for residential inflation than for nonresidential inflation.
One of the best predictors of construction inflation is the level of activity in an area. When the activity level is low, contractors are all competing for a smaller amount of work and therefore they may reduce bids. When activity is high, there is a greater opportunity to bid on more work and bids can be higher. The level of activity has a direct impact on inflation.
To properly adjust the total cost of construction over time you must use actual final cost indices, otherwise known as selling price indices.
Selling Price is whole building actual final cost. Selling price indices track the final cost of construction, which includes, in addition to costs of labor and materials and sales/use taxes, general contractor and sub-contractor margins or overhead and profit.
Construction Analytics Building Cost Index, Turner Building Cost Index, Rider Levett Bucknall Cost Index and Mortenson Cost Index are all examples of whole building cost indices that measure final selling price (for nonresidential buildings only).
Residential inflation indices are primarily single-family homes but would also be relevant for low-rise two to three story building types. Hi-rise residential work is more closely related to nonresidential building cost indices.
Producer Price Index (PPI) Final Demand Indices are an example of construction cost indices that represent whole building costs. Final Demand PPI, or Selling Price, represents contractors bid price to client. Includes labor, material, equipment, overhead and profit. Labor includes change in wages and productivity.
PPI Final Demand Indices should not be referenced monthly. These are quarterly indices. Every three months (Jan, Apr, Jul, Oct) BLS performs an update survey to correct the PPI Final Demand indices. For more than two years, in most quarters, about 80% to 90% of the change in the index for the quarter was posted in the update month. In some quarters, growth is flipped from negative to positive. And still in other quarters the correction month doubles or halves the rate of growth. There is no way to determine how much occurred in the update month or a previous month, but the update # along with the two previous months will get too the correct end-of-qtr index.
January is an update month. PPI Final Demand for Jan index basically includes the correction for Nov and Dec. Therefore, the index should NOT be compared mo/mo. There is only one of three months that the index is known for certain to be accurate, the update month. Compare qtr/qtr, but make sure to use the defined months, the correct update month with two previous months. For ex., (Jan+Dec+Nov) / (Oct+Sep+Aug). Those are the defined quarters. (I don’t make the rules).
Refer to National Inflation Indices for comparison to several national selling price indices or various Input indices. National reference indices are useful for comparison. Few firms project index values out past the current year, therefore all future projections in these tables are by Construction Analytics.
Construction Inflation History
Post Great Recession, 2011-2020, average inflation rates:
Nonresidential buildings inflation 10-year average (2011-2020) is 3.7%. In 2020 it dropped to 2.5%, but for the six years 2014-2019 it averaged 4.4%. In 2021 it jumped to 8%, the highest since 2006-2007. In 2022 it hit 12.8%, the highest since 1980-81.
Residential 8-year average inflation for 2013-2020 is 5.0%. In 2020 it was 4.5%. In 2021 it jumped to 14% and then in 2022 reached 15.8%. the highest on record.
30-year average inflation rate for residential and nonresidential buildings is 4.1%. But when excluding deflation in recession years 2008-2010, for nonresidential buildings the long-term average is 4.7% and for residential is 4.9%.
For Non-bldg Infrastructure the 30-year average is 3.6%. When excluding deflation in the recession years 2008-2010, Non-bldg long-term average inflation is 3.9%.
All of these long term averages went up in recent years because instead of including 1991-1994, at 2%/yr, we are now including 2021-2024, at 7%/yr to 8%/yr. All long term and short term inflation rates went up.
Since 2011, Nonres Bldgs inflation is 4.8%, Residential is 5.4% and Non-bldg is 4.3%.
- Long-term construction cost inflation is normally about double consumer price index (CPI).
- In times of high construction spending growth, nonresidential construction annual inflation averages about 8%. Residential has gone as high as 10%.
- Nonresidential buildings inflation (prior to 2021-2022) averaged 3.7% since the recession bottom in 2011. Six-year 2014-2019 average is 4.4%.
- Residential buildings inflation (prior to 2021-2022) reached a post-recession high of 8.0% in 2013 but dropped to 3.5% in 2015. It has averaged 5.3% for 8 years 2013-2020.
- Although inflation is affected by labor and material costs, a large part of the change in inflation is due to change in contractors’ and suppliers’ margins.
- When construction volume increases rapidly, margins increase rapidly.
- Deflation is not likely. Only twice in 50 years have we experienced construction cost deflation, the recession years of 2009 and 2010. That was at a time when business volume went down 33% and jobs were down 30%.
Historically, when spending decreases or remains level for the year, inflation rarely (only 10% of the time) climbs above 3%. Avg inflation for all down/flat years is less than 1%. That did hold true in 2020 for both Nonres Bldgs and Non-bldg Infra. It also held true in 2023 for Residential. It did not hold true in 2021 or 2022. In 2021, spending was down for nonresidential buildings and flat for non-building. Inflation for both was over 8%.
Differences in Tracking Period
Be careful when referencing YTD growth. YTD can be the growth so far this year, that is, growth compared to December of the prior year, or it can be YTD currentyr/YTD lastyr. Neither represents the growth from the avg of the previous year, which becomes the historical value. Both are useful during the year to judge trends. The average growth for the year accounts for all the peaks and valleys within each year and and is the value carried forward into the index tables and charts.
Also, use caution when referencing Dec/Dec growth. An example of the difference between Dec/Dec tracking or year over year, and annual average tracking, is Steel Mill Products which was down 28.7% Dec22/Dec21, but the annual average for 2022 is still up 9.0% from the average 2021. In fact, the three years 20-21-22 show Dec/Dec combined inflation is +71%, but the annual averages for those same three years shows total inflation growth of 87%. Annual averages should be used to report inflation.
PPI Excludes Imports and Tariffs
When assessing or tracking the pricing effect of tariffs on construction materials, keep in mind that the Producer Price Index (PPI) does not include imports (imports are not produced in the US), so therefore, does not include tariffs. See items 4 and 24 in the FAQ provided by the Bureau of Labor Statistics. Construction PPI changes reflect pricing decisions domestic producers make on domestic products in reaction to tariffs on imported products. Tariffs have big impact on domestic prices.
BLS explanation of method and definitions
The price change we see in the PPI for construction materials reflects the domestic material prices of ALL other domestically produced materials used in the industry. While tariffs may affect only 10% of products used in the industry, the PPI shows us the domestic producers reaction applied to the other 90%.
For example: The 2018 steel tariffs of +25% applied only on imported steel, affected only 30% (the imported share) of steel used in US. However the PPI shows us that the cost of ALL DOMESTIC steel mill products (of all types) produced in the US increased avg 18% in 2018, after the steel tariffs were imposed. Prices of domestic steel receded somewhat, but the point is that tariffs caused a price increase also in domestic steel. The increase in PPI is domestic producers pricing response in reaction to tariffs. Tariffs impacted pricing decisions on all domestically produced products, not just the imported products. Consumers pay the price.
PPI Construction Materials Inputs Indices
See this post for August PPI update Construction Briefs Sept 2025
ALL PPI DATA TABLES UPDATED TO JUL 8-15-25
ALL PPI DATA UPDATED TO APR 5-15-25 PPI data INPUTS for the month of Apr: Paving Mixtures -9.5%, Steel Mill Products +5.8%, Steel Pipe & Tube +6.3%, Nonferrous Wire +3.7% YTD25/avg24: Concrete Pipe +8.5%, Paving Mixtures -8.5%, Lumber/Plywd +4.9%, Steel Mill Products +3.7%, Nonferrous Wire +3.5%, Diesel -10.8%. PPI data FINAL DEMAND Apr closes out Q1. Q1’25/Q4’24: Avg Nonres Bldgs +0.6%, School +0.4%, Healthcare +2.2% YTD25/avg24: Avg Nonres Bldgs +1.35%, School +1.4%, Office +1.6%, Healthcare +2.91%.
Inputs Table updated 2-15-25 Jan’25 Inputs are up, +0.8% to Nonres, +1.2% to Residential and 1.2% to Highway, the largest increases since Jan’24. The largest Input item increases in January are Paving Mixtures (up 14.6%), Diesel Fuel (up 3.6%), Concrete Brick, Block & Pipe (up 2.2%), Copper & Brass Shapes (up 1.9%) and Flat Glass (up 1%). Steel Pipe & Tube is down 1.3%. Both Lumber/Plywood and Fabricated Structural Steel are down 0.5% or less.
In the quarterly percent change table you can see the drop in Q3’22 and more in Q4’22, a sharp change in the rate of inflation. This shows up as expected in lower average of Inputs to Res and NonRes for 2023.

2-15-25 PPI Materials Inputs for 2024 to Residential are up 1.7%, to Nonres Bldgs are up 0.6% and to Highway are up 0.5%.
In all three of these Inputs PLOTS, the materials plots above and this Summary plot, so far Q1’25 is only Jan. It will wiggle around for 2 more months.
A General construction cost index or Input price index doesn’t track whole building final cost and does not capture the full cost of inflation in construction. Final cost indices represent total actual cost to the owner and are often higher than General indices. Producer Price Index (PPI) INPUTS to construction reflect costs at various stages of material production, generally do not represent final cost of materials to the jobsite and do not include labor, productivity or margins. PPI Final Demand indices include all costs and do represent actual final cost to the Owner.
PPI Construction Final Demand Indices
PPI Final Demand indices should not be referenced monthly. These are quarterly indices. PPI Final Demand Indices are for Nonresidential Bldgs only. Every three months (Jan, Apr, Jul, Oct) BLS performs an update survey to correct the PPI Final Demand indices for the current month and the previous two months. For more than two years, in most quarters, about 80% to 90% of the change in the index for the quarter was posted in the update month. In some quarters, growth is flipped from negative to positive in the update month. And still in other quarters the correction month doubles or halves the rate of growth. January data (released in Feb) is an update month. The PPI Final Demand for Jan. is basically the correction for Nov.+Dec.+Jan. The index should NOT be compared mo/mo. Compare qtr/qtr, but make sure to use the correct update month with two other months, (Nov+Dec+Jan)/(Aug+Sep+Oct).
Due to the nature of the PPI Final Demand Index, (2 monthly readings from model then every 3rd month correction by contractor survey), the correction month for 5 of the last 8 quarters flipped the sign of the modeled months. In 2 of the remain 3 months the correction months more than doubled the rate of change for the previous 2 months. There is no other proof needed to convince you to take care when using this index. Get it right.
2-15-25 The PPI Final Demand table below is updated to JAN 2025 data.
PPI data FINAL DEMAND Apr closes out Q1.
Q1’25/Q4’24: Avg Nonres Bldgs +0.6%, School +0.4%, Healthcare +2.2%.
YTD25/avg24: Avg Nonres Bldgs +1.35%, School +1.4%, Office +1.6%, Healthcare +2.91%

Jan is the correction month for Q4, so the Jan 2025 value closes out the 4th qtr 2024. Most bldg types and contractors are up in the 2nd half 2024 from the 1st half, but cost growth has been nearly flat. If extended, the trend leading into 2025 is for slow inflation growth. However the Roofing trades are increasing at a slightly faster rate than all others.
Due to the nature of the PPI Final Demand Index, (2 monthly readings from model then every 3rd month correction by contractor survey), it is not uncommon that the contractor survey correction month flips the sign of the modeled months for the quarter.
In 2023, for each quarter, we see two months posted positive, then a large negative value for the correction month. The negative correction is large enough in all cases to turn the entire quarter negative. Here’s an example: for the period May-Jun-Jul, Jul is the correction month. PPI values were +0.09%, +0.02%, -1.23%. The average for each of the 3mo is -0.37%, (the sum of the 3 months divided equally. The May and Jun values that were originally posted based on modeling flipped from + to – after the contractor survey value is applied to the QTR. That highlights why PPI Final Demand indices should not be referenced monthly.
However, these declines are from such a high mark at the end of 2022 (we began 2023 up 11%), that the rate as we began 2024 is still up 6% to 7% from the average in 2022.
9-5-25 Q2 Final Demand Index closed out with this July data. Both Table and Plot are updated.


SEE ALSO PPI Data Sept’24
Construction Analytics Building Cost Indices and Reference Indices
2-21-25 Current and predicted Inflation updated to Q4’24
- 2022 Rsdn Inflation 15.8%, Nonres Bldgs 12.8%, Nonbldg Infra 17.3%
- 2023 Rsdn Inflation 2.5%, Nonres Bldgs 5.6%, Nonbldg Infra 6.3%
- 2024 Rsdn Inflation 3.0%, Nonres Bldgs 3.2%, Nonbldg Infra 3.4%
Since 2011, Nonres Bldgs inflation is 4.8%, Residential is 5.4% and Non-bldg is 4.3%.
2-21-2025 Inflation Forecast, Nonres Bldgs +4.0%, Residential +4.7% and Non-bldg +4.0%. (This is a pre-tariff forecast.)
5-15-2025 Inflation Forecast, Nonres Bldgs +4.4%, Residential +5.0% and Non-bldg +4.3%. (This is a preliminary tariff forecast.)
9-3-2025 Inflation Forecast, Nonres Bldgs +4.4%, Residential +4.7% and Non-bldg +4.0%. (This is a preliminary tariff forecast.)
10-17-2025 Inflation Forecast, Nonres Bldgs +4.2%, Residential +3.8% and Non-bldg +4.0%. (This is a preliminary tariff forecast.) These October revisions are NOT yet carried into the tables and plots. Only Residential changed considerably, however, it is the most dependent on government data, which is currently not available. The biggest change is in the Census Bureau Lasperyes Index, a constant quality residential new build index, which now includes August data and both June and July were revised down slightly.
The following Construction Inflation plot (for Nonresidential Buildings only) shows three elements: 1) a solid grey bar reflecting the max and min of the 10 indices I track in my weighted average inflation index, 2) a solid black line indicating the weighted average of those 10 indices, and 3) a dotted red line showing the Engineering News Record Building Cost Index (ENR BCI). Notice the ENR BCI is almost always the lowest, or one of the lowest, indices. ENR BCI, along with R S Means Index, unlike final cost indices, do not include margins or productivity changes and in the case of ENR BCI has very limited materials and labor inputs.
Most of the tables and plots here are cumulative indexes. Construction Inflation annual percents for the three major sectors, Residential, Nonresidential Bldgs and Non-building Infrastructure, are recorded in this short table, Escalation form Prev Year. Useful to compare to last year, but you would need to mathematically do the compounding to move over several years.

Final cost indices represent total actual cost to the owner and are generally higher than general indices. Producer Price Index (PPI) INPUTS to construction reflect costs at various stages of material production, generally do not represent final cost of materials to the jobsite and do not include labor, productivity or margins. Even with that, a PPI Inputs index +20% for a material could be only a +5% final cost. PPI Final Demand indices include all costs and do represent actual final cost. The solid black line (above) represents the Construction Analytics Building Cost Index for Nonresidential Bldgs and is a final cost index.
9-3-25 Although the PPI data was all updated, as of yet it does not have a big effect on inflation. Some slight increase is built into my inflation to account for PPI increasing in the 2nd half. The inflation tables do not yet need an update. Inflation tables will be updated soon.
2-21-25 All index tables and plots updated to Q4’24. NOTE: all prior index tables were set to base year 2019=100. All these updated tables are set to base year 2024=100.
All of the Index Tables and the plot below, Construction Analytics Building Cost Index, show the cumulative inflation index, or the cumulative compounded effect of inflation for any two points in time.


How to use an index: Indexes are used to adjust costs over time for the effects of inflation. An index already compounds annual percent to prevent the error of adding annual percents. To move cost from some point in time to some other point in time, divide Index for year you want to move to by Index for year you want to move cost from, TO/FROM. Costs should be moved from/to midpoint of construction, the centroid of project cost. Indices posted here are at middle of year and can be interpolated between to get any other point in time.
The three yellow highlighted lines in the index tables are plotted here. The three major sectors, Residential, Nonresidential Buildings and Non-building Infrastructure,
This table and plot is an extension of the tables and plots above. Data is as of Q4 2023, but the table covers from 1967 to 2000. Data is pretty sparse.

Non-building Infrastructure Indices

In the Index tables above, dividing the current year by the previous year will give the current year’s inflation rate. All indices are the average rate for the year.
Also, in the tables above, all reference indices data is gathered from the original source, then all are normalized to a common base, 2019 = 100. This allows us to see how different indices compare.
Comparison of Indices
This plot compares four final cost indices and three inputs cost indices. Prior to 2020 there is a lot of symmetry in the final cost group. Everything changed after that.
Previous year Construction Inflation 2024 – last updated JUL 2024 – BASE 2019=100
SEE ALSO Tariffs Create Unknown Costs to Construction
Links to Data Sources Construction Inflation >>> Links
Outlook 2025 CONSTR OUTLOOK 2025 Feb 2025
Links to Explanations of PPI Index PPI Explanation provided by AGC
Construction Briefs – As We Begin 2025
We are close enough, now in mid-January, to see where the numbers will end up for 2024. Construction spending as of Nov is up 6.5% year-to-date vs same 11 months in 2023. We are up 6.0% ytd vs the average of 2023. My forecast predicts we end 2024 up 6.2%, but growth is only 3.4% in 2025.
In February of 2024, with the Dec 2023 data in hand, my forecast for 2024 spending was $2,190 billion, only 1.8% higher than my current (Nov’24 data) forecast of $2,150 billion. Most of that early higher estimate was due to what I carried for my residential forecast, which I have since lowered by 3.6% from the initial forecast at the beginning of 2024. You can see in this monthly summary table that the Nonresidential Bldgs and Non-building forecasts have varied very little and the Total forecast has not varied up or down by more than 0.4% over the last 4 months.
edit 2-3-25 updated table to include Dec data. See the line comparing actual to the SEP data forecast.
Single family construction spending reached a post-2006 high in Q4’21 thru Apr’22 ($480bil). From Apr’22 to the lowpoint in May ’23 ($360bil) spending dropped 25%. By year-end 2023 it had recovered almost 3/4ths of that drop. It fell again in mid-2024 to $410bil, but has since recovered to the year-end’23 level ($450bil). That drop is reflected in the difference between the current forecast and the earlier forecast.
NAHB – Cost of Constructing a Home 2024 excellent summary www.nahb.org/-/media/AB4E…
Construction spending in 2024 will hit near $2.15trillion, another new high, up 54% since 2019.
Caution: the following table, showing Constant$ analysis, now shows Constant$ with base year at 2024. Since Q1-2020 I have used the base year at 2019. This update changes the Constant$ amount, but not the Constant$ percent growth. Slight changes in prior years inflation resulted in some minor changes in Constant$ growth.
The last time construction spending declined was 2011. But construction spending includes inflation, which adds nothing to the volume of work put-in-place. Construction volume, (spending minus inflation) will finish the year up only 10% since 2019.
My construction spending forecast for 2025 Nonres Bldgs is down 0.7%. But it’s driven by projects ending in Manufacturing (and Warehouse). In the last 3 yrs, there were $230bil Mnfg starts, most in 2022, $130bil above normal, now some are ending. Without Mnfg, nonres bldgs 2025 spending would be up 4.5%. So while outward appearance may be that nonres spending is declining, in large part it is due to mega spending on Manufacturing buildings (and Warehouse) tapering down upon completion, creating very large annual declines, but normal. See The Manufacturing Spending Taper
Last year at this time, many of the Nonres Bldgs and Non-bldg line items showed Nov-Dec spending was already several points higher than the 2023 average. This was an indication leading into 2024 that those markets were on track to start the year already up. This year,most markets show a decline from the 1st half of the year into the 2nd half. Two notable declines are Warehouse and Office w/o Data Centers. Both start 2025 down 5%+ from the average in 2024.
I didn’t realize how much impact there was with the inclusion of (increasing) Data Centers in the (decreasing) Office construction spending values. I’ve now separated Data Centers from Office and Warehouse from Commercial/Retail. Office spending was pretty strong near it’s highs until 2h’22. Early in ’24 it had fallen to 8%-12% below ’22. Office spending is now 15%-18% below 2022. On the other hand, Data Center spending as of Nov is up 30% from the same months in 2023, and is up more than 60% above the average of 2023 and 120% above 2022. It will continue to increase into 2025.
In 2014-2015, Data Centers was less than 5% of total Office+DC construction spending. Today it is approaching 30%. Next year it will approach 40%. In 2015, Warehouse was 25% of total Commercial spending. By 2022 it had climbed to 54%. In 2025, it will fall back to 45%. Warehouse spending is now decreasing after climbing 100%+ since 2019.
Dodge reports as of Nov construction starts for 2024 up 5% YTD. Residential starts up 7%. Nonresidential Buildings starts up 4%. Non-building starts up 5%.
Construction Jobs do not get compared to construction spending. Spending includes inflation, which adds nothing to business volume. Compare jobs growth to Volume growth.
Construction Jobs counts here are the average for the year. That accounts for months during the year, other than Dec/Dec, with higher (or lower) percentage of yr/yr growth. For instance, total jobs Dec24 vs Dec23 increased only by 196k jobs or 2.4%. If you based annual growth on Dec/Dec, it would indicate 2024 increased by 2.4%. However, during the year, jobs growth in Mar-Apr-May were all greater than +3% compared to same month prior year. In fact, every other month during the year had a higher yr/yr growth rate than Dec/Dec. Yearly average of all 12 months shows total jobs annual average up 226K or 2.8%.
Dec/Dec shows a snapshot in time of one month compared to same month last year, without taking into account what might have happened in any of the other 11 months. YR24avg/YR23avg shows the change in the number of jobs over the whole year and accounts for all activity in the year.
Jobs 2024 AVG thru DEC. Rsdn+61k +1.9%. Nonres Bldgs+134k+3.7%. Nonbldg +29k+2.6%
Construction Volume AVG thru NOV Residential +2.9% Nonres Bldgs +3.3% Nonbldg +4.3%.
From 2012-2019, we added a yearly average 245,000 jobs/yr. In 2024 we added 226,000 jobs, but from 2021-2024, we added an average of 247,000 jobs/yr. We add the most jobs in Feb and Mar. We add the least jobs in Apr and Jun. We add more jobs, by far, in the 1st qtr. than any other qtr.
Don’t be surprised if 2025 construction jobs growth slows a bit. Jobs are slightly ahead of volume growth. Since 2019, both Jobs and Volume increased 10%. But that includes 2020, when volume increased 4% but jobs fell by 250k, or 3%. Over the period of 4 years 2021 thru 2024, Jobs increased 13%. Volume of work increased only 6%.
The unemployment rate in construction goes UP in the 1st qtr every year, by 2% to 3% (data since 2011). Now, your 1st thought may be, if unemployment is increasing, that is probably because jobs are falling. Well, construction has ADDED jobs in the 1st qtr. every year since 2011 (excluding 2020), by an avg of nearly 30% of all jobs added annually. More recently, since 2020, we’ve added almost 40% of total annual jobs in Q1. Construction unemployment is not going up in winter months because we lose jobs in winter. So how can the unemployment rate still go up? There’s only one number left in the equation. It goes up because the entire workforce increases by greater than the number of jobs added.
For an example of how this employment timing information can be useful see Employing Correlation – Using construction industry employment data as a proxy for flatbed demand
Harvard Joint Center for Housing Studies posted that In Texas, California, New Jersey, and the District of Columbia, immigrants make up more than half of construction trade workers.
Nov PPI for Construction Mtrls little changed from Oct Inputs YTD to Nonres +0.6%, to Rsdn +1.7%, to Hiway +0.6% Concrete products up 6%, Steel products down 7%-8%, Lumber/Plywood down 2%, Copper up 6%, Diesel down 14%. Final Demand YTD (all in) Nonres Bldgs all up 0.5% or less. Trades up 1%-2%.
We can’t always tell what affect changes in the cost of construction materials will have on the final outcome of annual construction inflation. PPI materials index does not account for productivity or margins and varies on stage of input. A good example of stage of input is PPI for Steel Mill Products. That does not include delivery from mill to fabricator, detailing, fabrication, shop painting, delivery to jobsite, shakeout, lifting, installation and finally overhead and profit, in all about 75% of the cost of structural steel installed.
Construction Analytics Nonres Building Cost Index is a weighted average of eight final cost indices.
NAHB estimates that $184 billion worth of goods were used in the construction of both new multifamily and single-family housing in 2023 and that $13 billon of those goods were imported. eyeonhousing.org/2024/12/impo…
Steel Statistics Cost Increase Effect on Construction? written 2016 US is world’s largest steel importer at 30MMT/yr. 50% from our top suppliers, Canada, Brazil, South Korea and Mexico. China supplies less than 2%. The U.S. annually imports about $2bil from Mexico.
One quarter of all annual Brussel Sprouts consumption occurs around the Christmas holiday.
Construction Data JULY Briefs 9-5-24
Construction spending 2024 through July is still on track to finish the year up 7.7%. Residential is forecast up 8.5%, Nonresidential Buildings up 6.0% and Non-building up 8.9%.
We still have 3 or 4 more months of slightly declining construction spending, driven mostly by residential, but also by Manufacturing. This is not a long term trend. Sit tight. Oct or Nov, trend tuns back up. You can see the dip in this Current $ spending plot.

Construction spending total for 2024 expected up 7.7%. With inflation at a 4yr low (3%-4%), the amount of spending that is real volume growth is up this year, highest since 2016. It just edge out 2020.

I’m forecasting residential construction spending total for 2024 at $952b ,+8.5%. But three other indicators I calculate to compare to my forecast are telling me it could come in between $960b and $970b. I’m leaning towards higher, but I’d like to see Aug data, and Sept data.
And then there’s this. Census SAAR avg YTD (the average of the reported rsdn monthly SAAR for the 1st 7 months) is $939b. My YTD SAAR avg is $964b. Some down months will lower that slightly by year-end. .
Statistically, YTD spending through July for Rsdn and Nonres Bldgs is 57% of the total annual $ spent. This is indicating year-end total $ for residential will be $963b and $744b for Nonres Bldgs.
JOBS REPORT
Jobs are up by 34,000, 0.4%, in August, up by 80,000 in the last 4 mo., for a total up 1%/4mo. Year-to-date construction jobs are up 160,000 or 2%. Of those, 100,000 were for Nonresidential Buildings. Typical growth is 3.5%/year or about 250,000 to 300,000 jobs/year.

In this last month volume fell 1%. In the last 3 months, business volume fell 2.5%. Volume is falling and jobs are still increasing. There will be a slow patch for the next few months where volume will still fall another 1% to 2%. But jobs did not fall recently, and I don’t expect jobs to fall in the next few months.
The plot above from Jan2020 to Jan2026 is just enlarged view from this plot below, which shows how consistent jobs growth has been over the last 14 years. After the 2020 dip, the slope of jobs growth is about the same as Jan2011-Jan2020.

These next three plots break out the major sectors.



Construction Data MAY Briefs 7-1-24
With the July 1 release every year, Census issues spending revisions to prior years, in this case to 2022 and 2023.
For 2022, Census added +$54bil (3%), mostly to Nonres Bldgs. The largest revisions in 2022 are Comm/Rtl +$10bil (+8%), Mnfg +$10bil (+8%), Power +$12bil (+11%).
For 2023, Census added +$44bil (+2%). The largest revisions are Comm/Rtl +$10bil (+7%), Amuse/Rec +$4bil (+11%) and Power +$12bil (+9%).
Along with 2022 and 2023, Census also revised Jan-Apr 2024. For the first four months of 2024, Census added +$14bil (2.2%), mostly to Residential +$7bil (+2.6%) and Power +$4bil (+8.4%).
Overall, total construction spending, including the May data for 2024, is now forecast +8.5% over 2023. With the upward revisions to Jan-Apr, Rsdn spending forecast is now +7.7% for 2024. Nonres Bldgs (+6.9%) and Nonbldg (12.7%) growth over 2023 is down from prior forecasts not because 2024 spending went down, but because 2023 revisions were higher.
Compare this forecast to the forecasts issued in July in the AIA Consensus Construction Forecast.

From 2012 to 2024, construction spending has been up every year, averaging +8.2%/year. It’s been as low as +4% and as high as +15% in that time. Well, after taking out inflation, construction volume of business really increased only on average +3.2%/year. The low years were +0.2% to -0.2%. The highs were 2014 and 2015 when volume increased +7% and +9%. All other years were +5% or lower. The table below shows the percent volume growth for recent history and forecast.

So far, through May, the inflation rate for all building types is much lower than most of the recent years. All inflation at this point is projected to finish 2024 between 3.5% and 5%. 2024 spending in constant$ will be the highest rate of volume growth since 2020. Keep in mind, the Constant$ in the table above (and in all the plots below) represents 2019$. If reported in 2024$, then 2024 would be constant and all total annual dollars would be higher. The percent Constant$ change from year to year would not change.



While the first 5 months of 2024 show no new highs for residential starts, the average of the first five months is higher than the average for 2023. Starts in 2022 still hold the highest monthly and highest annual average for residential starts.









The jobs plots below show a steady rate of growth in jobs before the spike down, as well as after. It’s just that the pattern was delayed for two years until jobs caught back up to where they were. Jobs move somewhat independent of the volume of work being put-in-place, at a very steady long term growth rate.
Since 2011, jobs have increased at an average of 3.3%/yr., several times reaching 4%/yr., seldom hitting 5%/yr. In the last 12 months jobs are up 3.6%. Year-to-date jobs are up 1.5% for the 1st six months.

This enlarges the 2020-2025 portion of the plot above. Volume growth has spent much of the last three years still lower than needed to balance with jobs growth, but has made rapid recent gains. But look at the Volume plot, down midyear in 21, 22 and 23. My data file shows the next 4-5 month, a stall in spending, but we are at all-time highs, (so, it doesn’t hurt much) then followed by 15 months of growth.


JOBS Year-to-date:
- Residential jobs are up 1.0%. Volume is up 6.4%
- Nonres Bldgs jobs are up 2.0%. Volume is up 1%.
- Non-Bldg jobs are up 1.4%. Volume is up 1.3%
- Total all construction jobs is up YTD 1.5%. Volume is up 3.3%
JOBS In the last 12 months and last 24 months:
- Residential jobs are up 2.6%. Volume is up 4.1%. Over two years, jobs are up 4.4% while volume is up 6.9%.
- Nonres Bldgs jobs are up 4.8%. Volume is up only 0.4%. But look back over two years and jobs are up 8% while volume is up 18%.
- Non-Building jobs are up 3.1%. Volume is up 2.9%. Over two years, jobs are up 6.9% while volume is up 12%.
JOBS Since the onset of the Pandemic (May 2024 compared to Dec 2019):
- Residential jobs are up 15.0%. Volume is up 13.4%
- Nonres Bldgs jobs are up 5.4%. Volume is up 10.6%.
- Non-Bldg jobs are up 6.0%. Volume is down 5.8%
- Total Construction Jobs are up 9.2%. Total Volume is up 7.6%.
Non-Bldg Infrastructure volume is forecast to increase 10% in the next 12 months. Nonresidential Bldgs volume expected to increase 1.7%. Residential expected to increase 1.0%. I expect total volume to increase by 4% to 4.5% in 2024, I expect total construction jobs to increase about 3.5% to 4% in 2024. Total jobs through June are up 1.5%.
Construction Analytics Outlook 2024
Construction Analytics Economic Outlook 2024 includes Construction Data – DEC 2023 Data 2-7-24
2-22-24 At the bottom of this article is a downloadable PDF of the complete 2024 Outlook
Here is a summary of construction spending through December 2023, Inflation through 4th qtr. or Nov where available, and resulting constant dollar volume. 2023 spending will be revised three times in 2024, Mar1, Apr1 and Jul1, and then again on Jul1 2025. Historically, almost all revisions are up.
Construction spending preliminary total for 2023 is up 7.0%. But nearly 80% of that total is inflation. Except for Nonresidential Bldgs, spending increased 23%, so inflation is only 25% of that. Even deducting inflation still leaves 75% of spending as volume growth Most of that growth is in Manufacturing buildings.
Spending is up a total of 42% since 2019; up 8% in 2020, 10% in 2021, 12% in 2022 and now 7% in 2023. But volume after adjusting for inflation is up only 5% total. You can see the Constant$ line, with one lower dip in 2022, has ranged between Constant$1400bil. to $1500bil. since mid-2019.
Construction spending total forecast for 2024 is up 10.7%. Nonresidential Buildings is forecast up 8.8%, Non-building Infrastructure up 15.8% and Residential up 9.7%. Lower inflation in 2024 means more of that spending is counting towards real volume growth. I’m expecting only 4% to 5% inflation for 2024, so real volume growth could reach 6% for the first time since 2015. From 2012-2016, volume growth averaged 6%/yr. For the last four years, 2020-2023, 42% spending growth vs 37% inflation growth netted only 5% total real volume growth. Since 2017, volume growth averaged less than 1%/yr. Non-building Infrastructure volume could increase 10%+ in 2024.
New Construction Starts
Dodge Construction Network (DNC) monthly news article of construction starts by sector provides the data from which the following is summarized.
Total construction starts for 2023 ended down 4%, but Nonresidential Buildings starts finished down 7% and Non-building Infrastructure starts were UP 16%. Residential starts decreased 12% in 2023.
Total construction starts for 2024 are forecast up 7%. Nonresidential Buildings starts are forecast up 5% and Non-building Infrastructure starts up 8%. Residential starts are forecast up 10% in 2024.
In recent years, Nonres Bldgs new starts averaged $300 billion/year. In the 2nd half of 2022, starts averaged near $500 billion/year. For the 1st half 2023 starts dropped to a rate of $390bil./yr., which is still well above the recent average. Then, for 2nd half 2023, starts came back up to average $430 billion/year, the 2nd highest half year average. A 50% increase in new nonresidential building starts in 2022 has a positive impact on the rate of construction spending in 2023 and 2024. It will continue to add lesser impact into 2025. Projects starting in 2nd half of 2023 could have midpoint of construction, point of peak spending, in 2024 or into 2nd half of 2025, some real long duration starts even later. So, the major spending impact from starts is sometimes one or two years later.
Residential construction (Dodge) starts posted the five highest months ever, all in the 1st 6 months of 2022. In the second half of 2022, residential starts fell 15%. In Q1 2023, residential starts dropped another 12% below 2nd half 2022, the lowest average since Q1-Q2 2020. Finally in July and August, starts regained some strength coming in 33% higher than the lows in Q1. Residential starts finish 2023 down 12% vs 2022. Forecast is up about 10% in 2024.
Nonresidential Buildings, in 2022 posted the largest ever one-year increase in construction starts, up 50%. Some of these starts will be adding to peak spending well into 2025. Nonres Bldgs starts in the 2nd half 2022, averaged 67% higher than any other 6mo period in history. Starts fell 20% in the 1st half 2023 but still posted the 2nd highest 6mo average ever. After two years of outstanding growth, Nonres Bldgs starts close 2023 down 7%. Although 2023 is down 7%, that’s still by far the 2nd best year ever. The forecast for 2024 is +5%.
Manufacturing starts, the market with the largest movement, gained 120% from 2020 to 2023. Manufacturing projects can have a moderately long average duration because some of these are multi-billion$ projects and can have schedules that are 4 to 5 years.
Educational, Healthcare, Lodging and Public Buildings all had starts of 20% or more the last two years.
Non-building starts for the 6 month period Mar-Aug 2023 posted the best 6 months on record, up 30% from the average of 2022. The 2nd half 2022 was up 50% over 1st half 2022. For 2023, Highway/Bridge and Power have the strongest gains. Total Non-building Starts for 2023 are up 16% and they were up 25% in 2022. These starts will help elevate spending through 2025. Non-building starts for 2024 are forecast up 8%.
Power starts are up 25% the last two years. Highway starts and Environmental Public Works are both up 33% the last two years and up 50% the last three years.
Starts data captures a share of the total market or only a portion of all construction spending, on average about 60% of all construction. The easiest way to understand this is to compare total annual construction starts to total annual spending. National starts in recent years about $800 billion/year, while spending in this period ranges from $1,300 billion/year to $1,500 billion/year. From this simple comparison we can see starts captures a share of about 60% of the total market. The actual share for each market varies from as low as 35% to as high as 70%. Before using starts data to forecast spending, starts here were first adjusted for market share.
Starting Backlog
Starting backlog is the estimate to complete (in this analysis taken at Jan 1) for all projects currently under contract. The last time starting backlog decreased was 2011. If new construction starts in the year are greater than construction spending in the year, then for the following year starting backlog increases. It’s when new starts don’t replenish the amount of spending in the year that backlog declines.
80% of all nonresidential spending in any given year is from backlog and could be supported by projects that started last year or 2 to 4 years ago. Residential spending is far more dependent on new starts than backlog. Only about 30% of residential spending comes from backlog and 70% from new starts.
The table below, Forecast Starting Backlog, is model generated by Construction Analytics. Adjusted starts are spread over time to generate cash flow. A sum of spending each month/year, subtracted from start of year plus new starts provides Backlog.
Construction Backlog leading into 2024, in every sector, is at all-time high, in total up 46% from Jan 2020. For the years 2022 and 2023, backlog is up 11% and 12%. Reaching new highs in Backlog could mean contractors are comfortable adding some backlog, or it could mean not enough labor, subcontractors or suppliers to support advancing growth so quickly, so growth advances slower and more of the work is retained in backlog for longer, essentially dragging out the timeline, or it could be long term workload, 4yr.-6yr. long projects from new starts, such as Manufacturing, where a very large amount enters backlog and gets spent over 4-6yrs., so, although the monthly drawdowns reduce the amount remaining in backlog, it remains in backlog for a long time.
Residential backlog in 2024 is down 0.5%, but from such a previous high, essentially, starts are riding flat along the top. Starts are up 55% since Jan 2020.
Nonresidential Bldgs starting backlog for 2024 received a boost from all the starts in 2022 and 2023. Backlog is up 12% from 2023 and up 50% from Jan 2020.
Nonbuilding Infrastructure starting backlog is up 12% each of the last two years boosted by strong starts in 2022 and 2023. For 2024, backlog is up 40% from Jan 2020.
Manufacturing backlog increased nearly 300% from 2020-2024, from $117bil going into 2020 to $300bil beginning 2024. No other market has ever been close. Manufacturing was responsible for 60% of all the Nonres Bldgs spending growth in 2023. It was also responsible for 60% of the Backlog growth leading into 2024. Nonres Bldgs has a total 3.6 million jobs and has never increased by more than 150,000 jobs in one year. Manufacturing is 30% of all Nonres Bldgs spending, so assume 30% of Nonres Bldgs jobs. That’s 1.2million jobs supporting just Manufacturing projects. So Backlog of $300bil, at 5000 jobs per billion per year, would need 1,500,000 jobs for a year. With a 1,200,000 jobs share of the workforce, that backlog would provide support for 15 months. Of course, new starts add to support throughout the year, but the calculation of how long backlog would support that market segment is valuable.
Backlog at the beginning of the year or new starts within the year does not give an indication of what direction spending will take within the year. Backlog is increasing if new starts during the year is greater than spending during the year. An increase in backlog could immediately increase the level of monthly spending activity, or it could maintain a level rate of market activity, but spread over a longer duration. In this case, there is some of both in the forecast. It takes several years for all the starts in a year to be completed. Cash flow shows the spending over time.
Current Rate of Spending
The current seasonally adjusted annual rate (SAAR) of spending gives an indication of how spending will perform in the following year. As we begin 2024, the current rate of spending (SAAR) for Nonresidential Buildings in Q4’23 is $709bil., already 4.5% higher than the average for 2023 ($677bil). If spending stays at the current level and no additional growth occurs, Nonresidential Bldgs spending will finish 2024 up 4.5%. Spending would need to have more monthly declines than increases to finish the year up less than 4.5%. The current forecast shows a monthly SAAR rate of growth for Nonresidential Bldgs. averaging about 0.5%/mo in 2024, so we have a minimum, but we can expect 2024 total spending to rise considerably higher than the current rate.
Non-building Infrastructure current rate of spending is now 3.7% higher than the average for 2023, however the forecast is indicating steady growth of 1%/mo for all of 2024.
Residential current rate of spending is 2.4% above the 2023 average and is forecast to average an increase of just under 1%/mo for 2024.
2024 Construction Spending Forecast
Starts lead to spending, but that spending is spread out over time. Starts represent a contract award. Spending takes the amount of that contract award and spreads it out by a cash flow curve over the duration of the job. An average spending curve for the sum of nonresidential buildings is 20:50:30 over three years. Only about 20% of new starts gets spent in the year started. 50% gets spent in the next year and 30% in YR3/4. An average spending curve for Non-building Infrastructure is more like 15:30:30:20:5. The effect of new starts does not show up in spending immediately. For example: If 2024 posts an additional $100 billion in new starts for Infrastructure, only about $15 billion of that would get put-in-place in 2024. The cash flow schedule for that $100 bil of new starts would extend out over 3 to 5 years. Most of that $100 bil would get spent in 2025 and 2026.
Total Construction Spending $2,190 billion +10.7% over 2023.
Nonresidential Buildings $737 billion +8.8% over 2023.
Non-building Infrastructure $493 billion +15.8% over 2023.
Residential Buildings $960 billion +9.7% over 2023.
This forecast does not include a recession.
The largest increases to construction spending in 2023 are Manufacturing +$80bil, Highway +$20bil, Public Utilities (Sewage and Waste, Water Supply and Conservation-Rivers-Dams) +$15bil and Educational +$14bil.
Residential regains the top growth spot in 2024 with a forecast spending increase of +$68bil. Manufacturing is forecast to add +$32bil. Highway gains +$26bil, Power +$24bil and Educational gains +$15bil.
One big question is how did the forecast for Manufacturing increase so much since the beginning of 2023. Since January 2023, the starts forecast for 2023 increased by 35%. How much of that 35% is real growth in starts vs an increase in the capture rate of data gathering is yet to be determined, but has an impact of 2023-2024 spending. Also, starts for future years were increased by 50%. Starts (contract awards) drives up the spending forecast, since spending is a function of the future monthly cash flow (spending) of starts.
As we begin the year, Manufacturing SAAR current rate of spending is already 8% higher than the average for 2023. The current rate of spending is increasing at an average of near 2%/month for the next 6 months, then slows or dips slightly for the remainder of the year, indicating total spending for 2024 will finish well above the current rate of 8%. I’m forecasting 16% growth for the year.
Highway SAAR rate of spending begins the year 6.5% higher than the average for 2023, with the current rate increasing at an average of 1%/month for all of 2024, indicating total spending for 2024 will finish well above the current rate of 6.5%. Starts have increased +15%/yr the last three years. My forecast is for 19% growth in 2024 spending.
Power SAAR rate of spending begins the year 4% higher than the average for 2023, with the current rate increasing at an average over 1%/month for 2024, indicating total spending for 2024 will finish much higher. My forecast is for 20% growth in 2024.
Public Utilities SAAR rate of spending begins the year 6% higher than the average for 2023, with the current rate increasing at an average over 1%/month for 2024. Public Works averaged +15%/yr new starts the last three years. My forecast is for 13% spending growth in 2024.
Residential regains the top spot in 2024 with a forecast spending increase of $68bil. Residential SAAR rate of spending in Q4’23 was up 2.5% over 2023, but December was up 5%. So we begin the year 2.5% to 5% higher than the average for 2023. The rate of spending is forecast to increase 1%/month for 6 months, then fall 0.5%/mo for H2 2024. My forecast is for 10% growth in 2024.
Educational SAAR rate of spending begins 2024 7% higher than the average for 2023, and the current rate is increasing at an average of 0.7%/month for 2024. My forecast is for 13% growth.
Inflation
Construction Inflation differs from other common types of inflation, i.e., Consumer Price Index. It must be accounted for in order to make reasonable calculations for business volume and past or future costs.
30-year average inflation rate for residential and nonresidential buildings is 3.7%. Excluding deflation in recession years 2008-2010, for nonresidential buildings is 4.2% and for residential is 4.6%.
Deflation is not likely. Only twice in 50 years have we experienced construction cost deflation, the recession years of 2009 and 2010. That was at a time when business volume dropped 33% and jobs fell 30%. During two years of the pandemic recession, volume reached a low down 8% and jobs dropped a total 14%.But we gained back far more jobs than volume. That means it now takes more jobs to put-in-pace volume of work. That increases inflation.
The following Construction Inflation plot (for Nonresidential Buildings only) shows three elements: 1) a solid grey bar reflecting the max and min of the 10 indices I track in my weighted average inflation index, 2) a solid black line indicating the weighted average of those 10 indices, and 3) a dotted red line showing the Engineering News Record Building Cost Index (ENR BCI). Notice the ENR BCI is almost always the lowest, or one of the lowest, indices. ENR BCI, along with R S Means Index, unlike final cost indices, do not include margins or productivity changes and in the case of ENR BCI has very limited materials and labor inputs.

Final cost indices represent total actual cost to the owner and are generally higher than general indices. Producer Price Index (PPI) INPUTS to construction reflect costs at various stages of material production, generally do not represent final cost of materials to the jobsite and do not include labor, productivity or margins. Even with that, a PPI Inputs index +20% for a material could be only a +5% final cost. PPI Final Demand indices include all costs and do represent actual final cost. The solid black line (above) represents the Construction Analytics Building Cost Index for Nonresidential Bldgs and is a final cost index.

This short table shows the inflation rate for each year. Useful to compare to last year, but you would need to mathematically do the compounding to move over several years. The plot below shows the cumulative inflation index, or the cumulative compounded effect of inflation for any two points in time.

Typically, when work volume decreases, the bidding environment gets more competitive. We can always expect some margin decline when there are fewer nonresidential projects to bid on, which typically results in sharper pencils. However, when labor or materials shortages develop or productivity declines, that causes inflation to increase. We can also expect cost increases due to project time extensions or potential overtime to meet a fixed end-date.
Current$ Spending, Inflation, Constant$ Volume
Volume = spending minus inflation. Spending includes inflation. Inflation adds nothing to the volume.
Inflation adjusted volume is spending minus inflation, or to be more accurate, spending divided by (1+inflation). Inflation adds nothing to volume growth. The following table shows spending, inflation and volume (spending without inflation) for each year. Spending is current to the year stated. The values in the constant table are indexed to a constant value year, 2019. This shows business volume year to year, can be a lot different than spending would indicate. When inflation is positive, volume is always less than spending by the amount attributed to inflation.
Lower inflation in 2024 means more of that spending is counting towards real volume growth. Expecting only 4% to 5% inflation for 2024, real volume growth could reach 6% for the first time since 2015. From 2012-2016, volume growth averaged 6%/yr. For the last four years, 2020-2023, 42% spending growth vs 37% inflation growth netted only 5% total real volume growth. Since 2017, volume growth averaged less than 1%/yr. Non-building Infrastructure volume could increase 10%+ in 2024.
Spending during the year is the value of business volume plus the inflation on that volume. When inflation is 12%, volume plus 12% = total spending. Revenue is generally measured by spending put-in-place during the year. Revenue does not measure volume growth. In 2022, Nonresidential buildings inflation was 12%, so business volume was 12% less than spending, or 12% less than revenue. Residential volume was 15% less then spending.
When referencing Constant $ growth, remember the dollars for all years are reported here as 2019$. If the baseline year is changed to this year (divide all indices by this year’s index), the resulting comparison would be all years reported as 2024$. The dollars would all be greater, but the percent change would be the same. In this table, nominal spending is divided by the inflation INDEX for the year. You can also deduct the percent inflation from any individual year of spending to find inflation adjusted $ for that year alone, however that method would not allow comparing the adjusted dollars to any other year. A baseline year is necessary to compare dollars from any year to any other year.
Reference Inflation Data Construction Inflation 2024
Through December 2023, Total Construction Spending is up 40% for the four years 2020-2023, but, during that same period inflation increased 35%. After adjusting for 35% inflation, constant $ volume is up only 5%. So, while the current $ spending plot shows a four-year total increase of 40% in spending, the actual change in business volume is up only 5% and has just in the last few months returned to the pre-pandemic peak in Feb-Mar 2020.
Jobs are supported by growth in construction volume, spending minus inflation. If volume is declining, there is no support to increase jobs. Although total volume for 2023 is up 2.3%, Residential volume is down 9%, Nonresidential Bldgs volume is up 16% and Non-building volume is up 8%. Inflation was so high in 2021 and 2022 that it ate away most of the spending gains in those years.
Jobs vs Volume
Construction Jobs increased 2.75% in 2023. We added 214,000 jobs (avg’23-avg’22). There are currently 8,056,000 construction jobs. The largest annual increase post 2010 is 321,000 jobs (+4.6%) in 2018. The average jobs growth post 2010 is 200,000 jobs per year.
Since 2010, average jobs growth is 3%/yr. Average volume of work growth since 2010 is 2.3%/yr. This plot shows Jobs and Volume growth closely match from 2011 to 2018. With few exceptions for recession periods, this pattern can be seen throughout the historical data.

What’s remarkable about the growth is this, since 2016, spending has increased 63%, volume after inflation increased 6% and jobs increased 19%. In the last 7 years, 2017-2023, jobs increased 2.5%/yr. Volume of work increased only 0.8%/yr. Volume and jobs should be moving together.

It takes about 5000 jobs to put-in-place $1 billion of volume in one year. It could easily vary from 4000 to 6000. So, an add of $100 billion+ in one year would need 500,000 new jobs. Jobs should track volume, not spending growth. Volume = spending minus inflation.
Normal construction jobs growth is about 250,000 jobs per year and maximum prior growth is about 400,000. From the table above, Nonresidential Bldgs and Non-building Infrastructure added $100bil of volume in 2023 and will add $60bil in 2024. The workload discussed above would theoretically require 500,000 new jobs in 2023 and 300,000 more in 2024. That’s an expansion of the industry workforce by 10% in two years, for just half the industry, in an industry that normally grows in total 3%/yr. This industry can’t grow that fast. This may have some impact if over-capacity growth results in a potential reduction or extension in future forecast. You can’t increase spending that fast if you can’t also expand the labor force and the suppliers to the industry that fast.
In the last 12 months, Dec’22 to Dec’23, Nonres Bldgs jobs are up 4%. Nonres Bldgs spending is up 23%, by far driven by Manufacturing, but after ~5.4% inflation, volume of nonres bldgs workload is up 16%. So, we have a 4% increase in jobs versus a 16% increase in volume.

The last year has shown a huge increase in the volume of nonres bldgs work, without an equal increase in jobs. Is this excess nonres bldgs jobs for the past three years now absorbing added workload, (a 4% increase in jobs but a 16% increase in volume), without collapsing the labor force or canceling the volume?
Non-building, over the next two years, could experience the same kind of growth spurt as Nonres Bldgs., a forecast increase in volume the next two years without an equal increase in jobs. Volume which was lower than jobs since 2021, is now increasing faster than jobs. Non-bldg volume is forecast up 6% to
8%/year the next 3 years. Jobs increase at an avg. 3.5%/year.

Residential volume has exceeded residential jobs all the way back to 2011. The recent decline in volume brings the two even, if the jobs hold the pace.

For as long as I can remember, the construction industry has been complaining of jobs shortages. And yet, as shown in the data mentioned above, jobs have increased multiples times greater than volume of work. With an exception for recession years, (2007-2010 and 2020), jobs increase at a rate of 2.5% to 3% per year. The greatest disparity between jobs and volume occurred in late 2022, when jobs growth had already resumed normal pace, but volume of work was still reeling from the effects of new construction starts that were canceled dating back to late 2020-early 2021. Recent volume growth at a much faster rate than jobs growth is now closing the gap.
When jobs increase without an equal increase in the volume of work, productivity declines. This recent increase in volume and the projected increase in volume in 2024, several points stronger than jobs, will offset some of the disparity which has been negative for a long time.

Reference Inflation Data Construction Inflation 2024
Reference Article The Next Forecast Challenge
Reference Article Midyear ’23 Jobs Outlook
Reference Article Reliability of Predicted Forecast
Reference Link to Web Dodge Construction News
Below is a downloadable 24 page PDF of the complete 2024 Outlook
Construction Inflation 2024
SEE Construction Inflation 2025 – 2-21-25
This post was last updated Jul 2024. All Index Tables and plots here are BASE 2019 = 100. The more recent Inflation 2025 post is revised to BASE 2024 = 100.
To properly adjust the cost of construction over time you must use an Actual Final Cost Inflation Index, otherwise called a selling price index. General construction cost indices and Input price indices that don’t track whole building final cost do not capture the full cost of escalation in construction projects.
Spending Must Be Adjusted by Inflation
Usually, construction budgets are prepared from known “current” costs. If a budget is being developed for a project whose midpoint of construction costs is two years in the future, you must carry in your budget an appropriate inflation factor to represent the expected cost of the building at that time. Why the midpoint? Because half the project cost occurs prior to that point and half occurs later than that. Actually, the midpoint of spending is 50-60% into the schedule, but the calculation to the midpoint of schedule is close. So, the average inflation for the project includes early contracts that have less inflation than average and also later contracts that would have more than the average inflation. Construction inflation should always be calculated from current cost to midpoint of construction, or in the case of using historical data and converting an older actual cost to a future budget, from midpoint to midpoint.
Any time a construction project is delayed or put on hold to start at some future date, construction cost inflation must be calculated and added to the previous budget to account for the unanticipated cost increase due to the delay. Of utmost importance is using appropriate cost indices and forecasting future cost growth to account for the difference in original budget and revised budget.
Besides the estimator’s need to accurately reflect future expected cost, inflation is an important aspect of the company business plan. Typically discussed in tandem with spending, inflation has an impact on tracking and forecasting company growth. All spending includes inflation, but inflation adds nothing except $ signs to the overall growth. For example, in a year when company revenues (spending) increase by 10%, if inflation is 6%, then total growth is only 4%. To accurately calculate growth, and the need for labor to support that growth, spending must be adjusted by the amount of inflation.
Types of Construction Inflation Indices
General construction cost indices and Input price indices that don’t track whole building final cost do not capture the full cost of inflation on construction projects.
Consumer Price Index (CPI), tracks changes in the prices paid by consumers for a representative basket of goods and services, including food, transportation, medical care, apparel, recreation, housing. The CPI index in not related at all to construction and should not be used to adjust construction pricing.
Producer Price Index (PPI) for Construction Inputs is an example of a commonly referenced construction cost index that does not represent whole building costs. The PPI tracks material cost inputs at the producer level, not prices or bids at the as-built level.
Engineering News Record Building Cost Index (ENRBCI) and RSMeans Cost Index are examples of commonly used indices that DO NOT represent whole building costs yet are widely referenced by construction firms and estimators everywhere to adjust project costs. Neither includes contractor margins.
It should be noted, there are far fewer available resources for residential inflation than for nonresidential inflation.
One of the best predictors of construction inflation is the level of activity in an area. When the activity level is low, contractors are all competing for a smaller amount of work and therefore they may reduce bids. When activity is high, there is a greater opportunity to bid on more work and bids can be higher. The level of activity has a direct impact on inflation.
To properly adjust the total cost of construction over time you must use actual final cost indices, otherwise known as selling price indices.
Selling Price is whole building actual final cost. Selling price indices track the final cost of construction, which includes, in addition to costs of labor and materials and sales/use taxes, general contractor and sub-contractor margins or overhead and profit.
Construction Analytics Building Cost Index, Turner Building Cost Index, Rider Levett Bucknall Cost Index and Mortenson Cost Index are all examples of whole building cost indices that measure final selling price (for nonresidential buildings only).
Residential inflation indices are primarily single-family homes but would also be relevant for low-rise two to three story building types. Hi-rise residential work is more closely related to nonresidential building cost indices.
Producer Price Index (PPI) Final Demand Indices are an example of construction cost indices that represent whole building costs. Final Demand PPI, or Selling Price, represents contractors bid price to client. Includes labor, material, equipment, overhead and profit. Labor includes change in wages and productivity.
PPI Final Demand Indices should not be referenced monthly. These are quarterly indices. Every three months (Jan, Apr, Jul, Oct) BLS performs an update survey to correct the PPI Final Demand indices. For the past six quarterly updates, about 80% to 90% of the change in the index for the quarter was posted in the update month. There is no way to determine how much occurred in the update month or a previous month, but the update # along with the two previous months will get too the correct end-of-qtr index.
January is an update month. PPI Final Demand for Jan index basically includes the correction for Nov and Dec. Therefore, the index should NOT be compared mo/mo. There is only one of three months that the index is known for certain to be accurate, the update month. Compare qtr/qtr, but make sure to use the defined months, the correct update month with two previous months. For ex., (Jan+Dec+Nov) / (Oct+Sep+Aug). Those are the defined quarters. (I don’t make the rules).
Refer to National Inflation Indices for comparison to several national selling price indices or various Input indices. National reference indices are useful for comparison. Few firms project index values out past the current year, therefore all future projections in these tables are by Construction Analytics.
Construction Inflation History
Post Great Recession, 2011-2020, average inflation rates:
Nonresidential buildings inflation 10-year average (2011-2020) is 3.7%. In 2020 it dropped to 2.5%, but for the six years 2014-2019 it averaged 4.4%. In 2021 it jumped to 8%, the highest since 2006-2007. In 2022 it hit 12%, the highest since 1980-81.
Residential 8-year average inflation for 2013-2020 is 5.0%. In 2020 it was 4.5%. In 2021 it jumped to 14% and then in 2022 reached 15.7%. the highest on record.
30-year average inflation rate (excluding 2021 and 2022) for residential and nonresidential buildings is 3.7%. Excluding deflation in recession years 2008-2010, then for nonresidential buildings it is 4.2% and for residential it’s 4.6%.
- Long-term construction cost inflation is normally about double consumer price index (CPI).
- In times of rapid construction spending growth, nonresidential construction annual inflation averages about 8%. Residential has gone as high as 10%.
- Nonresidential buildings inflation (prior to 2021-2022) averaged 3.7% since the recession bottom in 2011. Six-year 2014-2019 average is 4.4%.
- Residential buildings inflation (prior to 2021-2022) reached a post-recession high of 8.0% in 2013 but dropped to 3.5% in 2015. It has averaged 5.3% for 8 years 2013-2020.
- Although inflation is affected by labor and material costs, a large part of the change in inflation is due to change in contractors’ and suppliers’ margins.
- When construction volume increases rapidly, margins increase rapidly.
- Deflation is not likely. Only twice in 50 years have we experienced construction cost deflation, the recession years of 2009 and 2010. That was at a time when business volume went down 33% and jobs were down 30%.
Historically, when spending decreases or remains level for the year, inflation rarely (only 10% of the time) climbs above 3%. Avg inflation for all down/flat years is less than 1%. That did hold true in 2020 for both Nonres Bldgs and Non-bldg Infra. It also held true in 2023 for Residential. It did not hold true in 2021 or 2022. In 2021, spending was down for nonresidential buildings and flat for non-building. Inflation for both was over 8%.
Differences in Tracking Period
Be careful when referencing YTD growth. YTD can be the growth so far this year, that is, growth compared to December of the prior year, or it can be YTDcurrentyr/YTDlastyr. Neither represents the growth from the avg of the previous year, which becomes the historical value. Both are useful during the year to judge trends. The average growth for the year accounts for all the peaks and valleys within each year and and is the value carried forward into the index tables and charts.
Also, use caution when referencing Dec/Dec growth. An example of the difference between Dec/Dec tracking or year over year, and annual average tracking, is Steel Mill Products which was down 28.7% Dec22/Dec21, but the annual average for 2022 is still up 9.0% from the average 2021. In fact, the three years 20-21-22 show Dec/Dec combined inflation is +71%, but the annual averages for those same three years shows total inflation growth of 87%. Annual averages should be used to report inflation.
PPI Construction Materials Inputs Indices
Inputs Table updated 7-12-24 Biggest move in May and June data, Fabricated Str Steel down 7.5% year-to-date; Concrete up 3.9% YTD; Paving Mixtures up 5%.
A few construction Inputs are up 5%, Concrete Products and Copper. Steel Products are down ytd 5% to 7%. Otherwise the PPI for Construction Inputs is up year-to-date only 1% to 2%. Final Demand is down ytd <1%.
In the quarterly percent change table you can see the drop in Q3’22 and more in Q4’22, a sharp change in the rate of inflation. This shows up as expected in lower average of Inputs to Res and NonRes for 2023.

7-12-24 PPI Materials Inputs to Residential and Nonres Bldgs and Highway are UP only 1%-2% since December 2023. PPI Final Demand shows several qtrs down, but in 2024, Inputs is up slightly and Final Demand is down slightly. So, inflation inputs are not being passed on in Final Demand. Recent inflation relief could be decrease in margins.
A General construction cost index or Input price index doesn’t track whole building final cost and does not capture the full cost of inflation in construction. Final cost indices represent total actual cost to the owner and are often higher than General indices. Producer Price Index (PPI) INPUTS to construction reflect costs at various stages of material production, generally do not represent final cost of materials to the jobsite and do not include labor, productivity or margins. PPI Final Demand indices include all costs and do represent actual final cost to the Owner.
PPI Construction Final Demand Indices
PPI Final Demand indices should not be referenced monthly. These are quarterly indices. PPI Final Demand Indices are for Nonresidential Bldgs only. Every three months (Jan, Apr, Jul, Oct) BLS performs an update survey to correct the PPI Final Demand indices for the current month and the previous two months. For the past six quarterly updates, about 80% to 90% of the change in the index was posted in the update month. January data (released in Feb) is an update month. The PPI Final Demand for Jan. is basically the correction for Nov.+Dec.+Jan. The index should NOT be compared mo/mo. Compare qtr/qtr, but make sure to use the correct update month with two other months, (Nov+Dec+Jan)/(Aug+Sep+Oct).
Due to the nature of the PPI Final Demand Index, (2 monthly readings from model then every 3rd month correction by contractor survey), the correction month for the last 3 full periods flipped the sign of the 6 modeled months and turned every month for the last 9 months negative. There is no other proof needed to convince you to take care when using this index. Get it right.
7-12-24 The PPI Final Demand table below is updated to JUN, 2024 data.

July is the correction month for Q2, so we do not yet know results for Q2 Final Demand. Most bldg types are down from Nov-Dec’22-Jan’23 to Nov-Dec’23-Jan’24, so, if extended, the trend leading into 2024 is for slightly lower inflation. However Roofing and Plumbing trades are increasing.
The Construction PPI Final Demand for Nonres Bldgs posted declines for the last three, and in some cases four, quarters, Q1 thru Q4 2023. When the adjustment is distributed back into the months being corrected, Apr into Feb and Mar, Jul into May and Jun, and Oct into Aug and Sep, it shows all bldgs, except Offc, have at least nine months of a declining rate of inflation cost, and actually for the last 6 months negative inflation or deflation. Office has been negative for 2 quarters, warehouse has been declining for 12 months and negative for 9 months.
Due to the nature of the PPI Final Demand Index, (2 monthly readings from model then every 3rd month correction by contractor survey), the correction month for the last 3 periods has flipped the sign of the 6 modeled months and turned every month for the last 9 months negative.
In 2023, for each quarter, we see two months posted positive, then a large negative value for the correction month. The negative correction is large enough in all cases to turn the entire quarter negative. Here’s an example: for the period May-Jun-Jul, Jul is the correction month. PPI values were +0.09%, +0.02%, -1.23%. The average for each of the 3mo is -0.37%, (the sum of the 3 months divided equally. The May and Jun values that were originally posted based on modeling flipped from + to – after the contractor survey value is applied to the QTR. That highlights why PPI Final Demand indices should not be referenced monthly.
However, these declines are from such a high mark at the end of 2022 (we began 2023 up 11%), that the rate as we began 2024 is still up 6% to 7% from the average in 2022.
7-12-24 The PPI Final Demand table of qtr/qtr is updated to Jun, 2024 data

7-12-24 The PPI Final Demand plot is updated to JUN, 2024 data, but July data is needed to close Q2, so Q2 is not reported in this plot.

SEE ALSO Construction Inflation Tame in July PPI
SEE ALSO PPI Data Sept’24
Construction Analytics Building Cost Indices and Reference Indices
Current and predicted Inflation updated to Q4’23 1-13-24
- 2022 Rsdn Inflation 15.7%, Nonres Bldgs 12.1%, Nonbldg Infra 17.0%
- 2023 Rsdn Inflation 2.5%, Nonres Bldgs 5.4%, Nonbldg Infra 4.9%
- 2024 Rsdn Inflation 3.4%, Nonres Bldgs 4.5%, Nonbldg Infra 3.8%
The following Construction Inflation plot (for Nonresidential Buildings only) shows three elements: 1) a solid grey bar reflecting the max and min of the 10 indices I track in my weighted average inflation index, 2) a solid black line indicating the weighted average of those 10 indices, and 3) a dotted red line showing the Engineering News Record Building Cost Index (ENR BCI). Notice the ENR BCI is almost always the lowest, or one of the lowest, indices. ENR BCI, along with R S Means Index, unlike final cost indices, do not include margins or productivity changes and in the case of ENR BCI has very limited materials and labor inputs.
Most of the tables and plots here are cumulative indexes. Construction Inflation annual percents for the three major sectors, Residential, Nonresidential Bldgs and Non-building Infrastructure, are recorded in this short table, Escalation form Prev Year. Useful to compare to last year, but you would need to mathematically do the compounding to move over several years.

Final cost indices represent total actual cost to the owner and are generally higher than general indices. Producer Price Index (PPI) INPUTS to construction reflect costs at various stages of material production, generally do not represent final cost of materials to the jobsite and do not include labor, productivity or margins. Even with that, a PPI Inputs index +20% for a material could be only a +5% final cost. PPI Final Demand indices include all costs and do represent actual final cost. The solid black line (above) represents the Construction Analytics Building Cost Index for Nonresidential Bldgs and is a final cost index.
All of the Index Tables and the plot below, Construction Analytics Building Cost Index, show the cumulative inflation index, or the cumulative compounded effect of inflation for any two points in time.


How to use an index: Indexes are used to adjust costs over time for the effects of inflation. An index already compounds annual percent to prevent the error of adding annual percents. To move cost from some point in time to some other point in time, divide Index for year you want to move to by Index for year you want to move cost from, TO/FROM. Costs should be moved from/to midpoint of construction, the centroid of project cost. Indices posted here are at middle of year and can be interpolated between to get any other point in time.
The three yellow highlighted lines in the index tables are plotted here. The three major sectors, Residential, Nonresidential Buildings and Non-building Infrastructure,
This table and plot is an extension of the tables and plots above. Data is as of Q4 2023, but the table covers from 1967 to 2000. Data is pretty sparse.

Non-building Infrastructure Indices

In the Index tables above, dividing the current year by the previous year will give the current year’s inflation rate. All indices are the average rate for the year.
Also, in the tables above, all reference indices data is gathered from the original source, then all are normalized to a common base, 2019 = 100. This allows us to see how different indices compare.
Comparison of Indices
This plot compares four final cost indices and three inputs cost indices. Prior to 2020 there is a lot of symmetry in the final cost group. Everything changed after that.
Previous year Construction Inflation 2023 – last updated 12-15-23
Links to Data Sources Construction Inflation >>> Links
Links to Explanations of PPI Index PPI Explanation provided by AGC
Construction Data Briefs – Nov Data 1-3-24
Overall forecast has not changed a lot from the last two months. I’ll add much more to this post in the coming days, but for now here is a summary of construction spending through November, Inflation through 3rd qtr or Nov where available, and resulting constant dollar volume.
This forecast is preliminary to the 2024 Outlook, which will be published in February after Census releases the initial Dec. 2023 spending (on Feb. 2nd) to begin closing out the year 2023, although 2023 spending will be revised three times after the February release. In addition construction starts, jobs data and inflation will be updated, all leading to a more accurate forecast for 2024 spending and inflation adjusted volume.
Total construction spending forecast is up 6.6% in 2023. Spending was up 12% in 2022 and 10% in 2021. Almost all of that is inflation. You can see the Constant$ line, with one lower dip in 2022, has ranged between $1400bil. to $1500bil. since mid-2019.
As we begin 2024, the current rate of spending for Nonresidential Buildings is already 3.5% higher than the average for 2023, so if spending stays at the current level and no additional growth occurs, 2024 Nonres Bldgs spending will finish the year up 3.5%. The current forecast shows a monthly rate of growth slowing to less than 0.5%/mo in 2024. Non-building Infrastructure is currently only 1% higher than the average for 2023, however the forecast is indicating steady grown of 1%/mo for all of 2024.
Residential current rate of spending is 1.5% above the 2023 average and is forecast to average an increase of 0.5%/mo for 2024.

One big question is how did the forecast for Manufacturing increase so much since the beginning of 2023. The starts forecast for 2023 increased by 35% since January. Starts for future years increased by 50%. Starts (contract awards) drives up the spending forecast since spending is a function of the future monthly cash flow (spending) of starts.
The largest increases to construction spending in 2023 are Manufacturing +$80bil, Highway +$18bil and Public Utilities (Sewage and Waste, Water Supply and Conservation-Rivers-Dams) +$15bil.
Residential regains the top spot in 2024 with a forecast spending increase of $68bil. Manufacturing is forecast to add +$33bil. Educational gains +$16bil and Power +$15bil.

Remember when referencing the Constant $ growth that the dollars for all years are reported here in 2019$. In this table, the nominal spending is divided by the inflation INDEX for the year. You can also deduct the percent inflation from any individual year of construction spending to find inflation adjusted $ for that year alone, however that method would not allow comparing the adjusted dollars to any other year. Setting a baseline year is necessary to compare dollars from any year to any other year.
Reference Inflation Data Construction Inflation 2023 updated 1-12-24
Construction JOBS increased 2.75% in 2023. We added 214,000 jobs (avg’23-avg’22). There are currently 8,056,000 construction jobs. The largest increase post 2010 is 321,000 jobs (+4.6%) in 2018. The average jobs growth post 2010 is 200,000 jobs per year.
Since 2010, average jobs growth is 3%/yr. Average volume of work growth since 2010 is 2.3%/yr.
In the last 7 years, 2017-2023, jobs increased 2.5%/yr. Volume of work increased only 0.8%/yr.
The following Construction Inflation plot (for Nonresidential Buildings only) shows three elements: 1) a solid grey bar reflecting the max and min of the 10 indices I track in my weighted average inflation index, 2) a solid black line indicating the weighted average of those 10 indices, and 3) a dotted red line showing the Engineering News Record Building Cost Index (ENR BCI). Notice the ENR BCI is almost always the lowest, or one of the lowest, indices. ENR BCI, along with R S Means Index, unlike final cost indices, do not include margins or productivity changes and in the case of ENR BCI has very limited materials and labor inputs.
Final cost indices represent total actual cost to the owner and are generally much higher. Producer Price Index (PPI) INPUTS to construction reflect costs at various stages of material production, generally do not represent final cost of materials to the jobsite and do not include labor, productivity or margins. PPI Final Demand indices include all costs and do represent actual final cost. The solid black line (above) represents the Construction Analytics Building Cost Index for Nonresidential Bldgs and is a final cost index.

This short table shows the inflation rate for each year. Useful to compare to last year, but you would need to mathematically do the compounding to move over several years. The plot below shows the cumulative inflation index, or the cumulative compounded effect of inflation for any two points in time.

Construction Data Briefs AUG Data 10-6-2023
Total Construction Spending in 2023 is forecast at $1,950 billion, an increase of 5.5% over 2022.
Nonresidential Buildings spending is leading Construction spending growth. With eight months in the year-to-date (ytd) for 2023, total all construction spending ytd is up 4.2%. Nonresidential buildings spending is up 22% ytd compared to Jan-Aug 2022, the fastest rate of nonres bldgs growth in over 30 years. Only 2006 & 2007 come close at 13% & 19% growth years. Commercial/Retail spending peaked in January 2023 and has dropped every month since. It will drop from a ytd of 8.5% down to a yearly total of 5%. Manufacturing is up 74% ytd and will hold on to finish the year up 66%.
Nonbuilding spending ytd is up 12%. The largest advances are in Highway, up 16% ytd, and Public Utilities. Sewage/Waste Water is up 24% ytd, Water Supply is up 15% ytd and Conservation/Rivers/Dams is up 26% ytd .
Residential Spending ytd compared to Jan-Aug 2022 is still down -8.7%. Residential spending peaked in Mar 2022 and had a recent bottom in Apr 2023. Since April, the annual rate of residential spending is up 5.6%, almost entirely due to an 8% increase in the largest segment, single family spending, 45% of all residential spending. Multifamily spending is is up 6%, but it’s only 15% of residential spending.
Spending Forecast
Total Construction Spending in 2023 is forecast at $1,950 billion, an increase of 5.5% over 2022.
Nonresidential Buildings spending is forecast at $662 billion, an increase of 20.6% over 2022.
Non-building Infrastructure spending is forecast at $421 billion, an increase of 12.9% over 2022.
Residential Buildings spending is forecast at $867 billion, a decline of -6.5% less than 2022.
This forecast does not include a recession.
Spending by Sector Current $ and Inflation Adjusted Constant $
In 2023, it’s Nonresidential Buildings leading growth. In 2024, it will be Non-building Infrastructure leading spending growth. Both are expected to post spending growth greater than the inflation index, so there will be real volume growth. In 2020+2021, residential volume grew 10%/yr. For 2023, residential volume drops 10%. Nonresidential Bldgs will post a 13% increase in volume in 2023 and flatten out at that level through 2024. Non-building volume increases 6% to 7%/yr for the next few years.
New Construction Starts
The rate of construction spending in 2023 will be influenced predominantly by a 50% increase in new nonresidential building starts in 2022. In recent years, new nonres bldgs starts averaged $300 billion/year. In the 2nd half of 2022, starts averaged near $500 billion/year. From Mar-Aug 2023 starts averaged $400 billion/year. Many of those projects will have peak spending in 2023 or 2024.
Residential construction (Dodge) starts posted the five highest months ever, all in the 1st 6 months of 2022. In the second half of 2022, residential starts fell 15%. In Q1 2023, residential starts dropped another 12% below 2nd half 2022. Finally in July and August, starts regained some strength coming in 33% higher than the lows in Q1. Residential starts are still down 17% year-to-date vs 2022.
Nonresidential Buildings, in 2022 posted the largest ever one-year increase in construction starts, up 50%. Nonres Bldgs starts in the 2nd half 2022, averaged 67% higher than any other 6mo period in history. Starts fell 20% in the 1st half 2023 but still posted the 2nd highest 6mo average ever. Nonres Bldgs starts are down 17% ytd.
Growth in Manufacturing construction starts for 2022 far surpasses growth in any other market, up over 150%.
Non-building starts for the 6 month period Mar-Aug 2023 posted the best 6 months on record, up 30% from the average of 2022. The 2nd half 2022 was up 50% over 1st half 2022. The 6 months Mar-Aug 2023 is up 18% from 2nd half 2022. For 2023, Highway/Bridge and Power have the strongest gains. Total Non-building Starts for 2023 are forecast up 25%. Non-bldg starts are up 22% ytd.
Current $ Spending, Inflation and Constant $ Volume
Inflation adjusted volume is spending minus inflation, or to be more accurate, spending divided by (1+inflation). Inflation adds nothing to volume growth. The following table shows spending, inflation and volume (spending without inflation) for each year. Spending is current to the year stated. The values in the constant table are indexed to a constant value year, 2019. This shows business volume year to year, can be a lot different than spending would indicate. When inflation is positive, volume is always less than spending by the amount attributed to inflation.
SEE Construction Inflation 2023
Spending during the year is the value of business volume plus the inflation on that volume. When inflation is 12%, volume plus 12% = total spending. Revenue is generally measured by spending put-in-place during the year. Therefore, Revenue does not measure volume growth. In 2022, Nonresidential buildings inflation was 12%, so business volume was 12% less than spending, or 12% less than revenue. Residential volume was 15% less then spending.
Through August 2023, Overall Construction Spending is up 28% in the 42 months since the onset of the pandemic, but, during that same period inflation increased 33%. After adjusting for 33% inflation, constant $ volume is down 5%. So, while the plot on the left shows three years of increases in spending, the actual change in business volume is still down and has not yet returned to the pre-pandemic peak in Feb-Mar 2020.
Does Volume of Work Support Jobs Growth?
or, Can jobs growth support volume of work?
Jobs should track volume, not spending growth. Volume = spending minus inflation. Volume is down, although now increasing, while jobs are up. Nonres Bldgs volume, in constant $, fell 25% from Feb 2020 to Sept 2021, and hit a second deeper low in mid-2022. Since then, the actual change in nonres bldgs volume has increased 18%. Yet nonres bldgs jobs increased only 3.5%. That still leaves volume nearly 10% lower than the pre-pandemic high. If the same production levels ($ put-in-place per worker) as 2019 were to be regained, theoretically, nonresidential volume would need to increase 10% with no increase in nonresidential jobs. For now, productivity is well below that of 2019, but it is improving because volume is increasing rapidly and jobs are increasing slowly.
Nonresidential Buildings spending in 2023 is forecast at $660 billion, an increase of 20.6%, or an increase of $113 billion in 2023. Non-building Infrastructure spending is forecast up 13% ($50bil) in 2023 and 10% ($40bil) in 2024.
Generally, it takes 5000 jobs to put-in-place $1 billion in one year. It could easily vary from 4000 to 6000. So an add of $100 billion+ in 2023 would need 500,000 new jobs. Adding $200 billion over two years would need 1,000,000 new jobs.
Construction Jobs vs Construction Volume
These plots updated to jobs report 10-6-23
Since Q1 2020, pre-pandemic high, spending increased 28%, but inflation was 33%, so real volume of work is down 5%. In that time jobs increased 5%. Jobs are way ahead of volume, but volume is backfilling in the void, especially in nonres bldgs.
This plot with baseline Jan 1, 2011 shows that jobs increase pretty consistently at about 3% to 4% per year. Except for the spike down in 2020, rate of growth (slope of the jobs line) is consistent for 13 years.
If we were to grow the labor force to meet the newly identified workload added from new starts, we would need to double the prior maximum rate of construction jobs growth. Normal construction jobs growth is about 250,000 jobs per year and maximum prior growth is about 400,000. The workload discussed above would require 500,000 new jobs/yr., back to back. That’s an expansion of the industry by 15%, in an industry that normally grows 3%/yr. This industry can’t grow that fast. (Which means we may all need to account for over-capacity growth as a potential reduction in future forecast. You can’t increase spending that fast if you can’t also expand the labor force and the suppliers to the industry that fast).
My first thoughts were, Jobs may not be able to increase fast enough to put-in-place the forecast spending. This impediment needs to be accounted for and could reduce overall construction spending forecast over the next two years. The most likely markets where a reduction might occur are Manufacturing, Highway and Public Utilities.
However this is what happened the past year. In the last 12 months, Aug’22 to Aug’23, Nonres Bldgs jobs are up 3.8%. Nonres Bldgs spending is up 21%, by far driven by Manufacturing, but after ~6% inflation, volume of nonres bldgs workload is up 15%. So, we have a 3.8% increase in jobs to accomodate a 15% increase in volume.
The last year has shown a huge increase in the volume of nonres bldgs work, without an equal increase in jobs. This shows the excess nonres bldgs jobs for the past three years is now absorbing new workload, (a 3.8% increase in jobs to accomodate a 15% increase in volume), without collapsing the labor force or canceling the volume. However, the ability to absorb work into the existing workforce cannot continue.
Non-building, over the next two years, could experience the same kind of growth spurt as Nonres Bldgs., a forecast increase in volume the next two years without an equal increase in jobs. Volume which was lower than jobs since 2021, is now increasing faster than jobs. Non-bldg volume is forecast up 6% to 8%/year the next 3 years. Jobs increase at an avg. 3.5%/year.
Residential volume has exceeded residential jobs all the way back to 2011. The recent decline in volume brings the two even, if the jobs hold the pace.





































































