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PPI Data Sept’24
Once again, the Producer Price Index for construction materials is pretty tame with the release of the September data. For Q3, inputs to all types of construction post less than 1% growth for the quarter. This is now 6 or 7 quarters in which Inputs and Final Demand has been near 1% or lower.
Inputs year-to-date vs the 2023 average are up 1.9% for residential and up less than 1% for Nonresidential and Highway.
Individually, a few material inputs had notable moves in September: Lumber/Plywood up 1.1%, Steel Mill Products down 1.2%, Steel Pipe and Tube down 1.3%, Copper and Brass Shapes down 1.1% and Diesel down 14%.
Year-to-date, various concrete items are up 5% to 6%, Steel items are down 6% to 7%, Copper and Brass Shapes are up 6% and Diesel is down 13%.
Final Demand indices for 2024 are barely moving. Although Office and School are both up over 1% for Q3, no building type is up even a half percent when compared to the average of 2023. Roofing Trades are up 1.7% YTD. The average YTD for the four trades is up less than 1%. Over the last six months The only Final Demand indices to move more than 2% (for the full 6mo) were Office Bldgs and Electrical Trades.
SEE ALSO Construction Inflation 2024 – updated 7-12






Construction Analytics 1,000,000th view, Apr data Briefs 6-10-24
Updates to Forecast, spending, starts, inflation, jobs will follow next few days, so revisit this post for Apr data updates.
SEE ALSO Construction Analytics Outlook 2024
Today, 6-10-24, this blog recorded the 1,000,000 view. That doesn’t count scrolling from the home page, where a visitor might scroll down to read 3 or 4 articles, and there are 500 landings on the home page every week. So, the counter hit 1,000,000 but including scrolling, the actual total views could be higher. Nearly 500,000 people read on average 2.1 articles every visit. Inflation articles draw the most attention, with a read rate of about 1000 times a week on a slow week and 2,000 on a busy week.
Thank you to all my visitors, and to the 1,000,000th viewer. Keep reading! edz
April construction data update
Total construction spending for 2024 is forecast up 9%, down slightly since last update. Residential was reduced, expect now only +4%. Nothing else changed much. Nonres Bldgs forecast up 11%. Nonbuilding up 15%.
Jobs growth from May’23 thru May’24: Total Jobs +3.2%; Nonres Bldgs + 4.7%; Nonbldg Infra +3.6%; Residential +2.9%. In all cases most of the growth was in 2023.
Residential construction spending cash flows indicate a drop of 4% over the next 6 months, but then a slow steady climb of +10% in the following 12 months.
Nonresidential Buildings construction spending cash flows indicate we have settled in a temp flat top for the next 6 months, down 2% from the Feb’24 peak. Then we get a 5% annual rate of increase for the next two years.
Non-building Infrastructure cash flows are not showing any monthly pullback for the next two years. Spending adds 8% from now until year end and then adds 10% in 2025.

Baseline Spending Adjusted to Constant 2019$

Since the end of 2019, (in Dec 2019 spending hit $1,464T) total construction spending as of APR’24 is up 46%. The real Volume of Business is spending minus inflation. Inflation adds nothing to the volume of business. After inflation, Volume is up only 6%. Total jobs are up 9%.
Since the end of 2019, Residential volume is up 7%. Rsdn jobs are up 15%. Nonres Bldgs Volume is up 12%. Nonres Bldgs jobs are up 5%. Nonbuilding volume is down 8%. Nonbldg jobs are up 5%.
A follower commented to me they thought total adjusted spending would be higher. At the time, we were referencing Constant2019$. When we set base year to 2024, all other years would be compared in Constant2024$. All years would appear higher, but the percent change yr/yr would be the same. Here’s the same data as the table above, except the Index year has been changed to Constant 2024$.
Baseline Spending Adjusted to Constant 2024$

Nonresidential Bldgs volume (spending after adjusting for inflation), increased 28% in the last 18 months. Nonres Bldgs jobs increased only 7%, and hours worked (OT) did not increase. That leaves 21% of Nonres Bldgs volume that was put-in-place without a balancing increase in jobs. The added work got absorbed into the existing workforce. That’s a very hard fact left unexplained by the argument that there are jobs shortages. As one reader commented, there are some reasons why more $ value of work is counted at the jobsite with less jobs, i.e., prefab, but not 21% of all Nonres Bldgs work.

This plot below removes spending, shows a better scale comparison of Jobs to Volume.

The above plot is taken from this 2011-2025 plot below. Looking back to 2011 shows how consistent jobs and volume growth was from 2011 thru 2019. This plot shows Construction Jobs growth since mid-2020 occurring at the same slope (rate of growth) as 2011-2019. Construction jobs grow avg 3.5%/year, even if volume growth varies. The Pandemic set jobs growth back by almost 2 years.

The next three plots Jobs vs Volume Growth, are set to zero start at Dec 2019. Last month, MAR data, I showed these same plots going back to start Jan 2011. Here’s a link to Mar data for those 2011 plots.


I’ve recently read comments on Twitter X that a slowdown in new residential starts is causing a drop in residential employment, and that leads a recession. Well, residential jobs are up 1% year-to-date, up 2.5% from May’23 to May’24, and right in line with average jobs growth since 2011. There is a slowdown in the rate of growth of constant $ volume. Although May starts are the lowest since November, that slowdown from May to December is only 3.5%. This may not be a big enough drop in volume to initiate a drop in jobs. We’ve seen other years (2018) where a small volume drop is not followed by a drop in jobs and never does the drop in jobs equal the magnitude of the drop in volume.

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.

Inflation Sept 2023 5min Video
This is a voice over power point converted to MP4. It’s a huge file. Only 9 slides but almost 225meg, 50x more memory than the original 9 slides.
Present Cost-Future Cost vs Present Value-Future Worth
A reader asked an interesting question, one that does not often come up in construction analytics. The following is an example to explain the difference.
The question: Our firm engages in construction projects that must be fully funded from cradle to grave to secure approval. A portion of these projects is remediation that will occur 10 years from now. What would be the Present Value to fund a project needed to be performed 10 years from now based on a similar project that cost $1,000,000 three years ago?
There are really two parts to this question. 1) What is the construction cost of remediation 10 years from now? 2) What is the Present Value of money today needed to fund that construction cost ten years from now?
- is determine the construction cost in 10 years based on inflation rates and a known project cost.
- is What is the value of money. How much do I need today to fund the project 10 years from now.
For the sake of this example we must assume some rates. Assume construction cost inflation the last three years was a total 25% and long term average inflation is 4%.
Present Cost to Future Cost is solved by applying construction inflation. To estimate cost of a project 10 years from now, we can only rely on long term average inflation for the type of work being performed. Long term average inflation is not the same as the inflation we have experienced over the last three years. So first let’s inflate the project from three years ago at 25% to today’s construction cost.
$1,000,000 (three years ago) x (1+25%) = $1,250,000 = similar project cost today.
Now let’s use long term average inflation (4%) to determine the construction cost 10 years from now. Inflation (like interest) must be compounded. So total interest over 10 years is interest for one year raised to the 10th power.
$1,250,000 (today’s cost) x (1+4%)^10 = $1,250,000 x 1.48 = $1,850,000
We would never assume the long term inflation to be repetitive of what we’ve seen over the last three years, so we use what we know occurred over the last three years to get to today, then project forward at the long term average historical rate.
The remedial work 10 years from now is estimated to cost $1,850,000. That is the Future Worth (FW) of the construction work needed. What is the Present Value (PV) of money needed to fund that Future Worth (FW)? How much must be invested in an account today so that it will grow to provide the funds needed to perform the FW work?
The growth rate of money is not the same as the inflation rate of construction. For the sake of this example, we need to make some assumption here for the growth rate of money. Let’s assume 3%. If we were to invest money today it can grow at 3%/year for 10 years. The answer to how much is needed to invest today (PV) to provide the full sum needed to fund the future (FW) is entirely dependant on the interest rate that can be secured for the term of the investment. We need $1,850,000 ten years from now. Divide the FW by the compounded rate of interest or money growth to find PV.
$1,850,000 (FW) / (1+3%)^10 = $1,850,000 / 1.34 = $1,376,000 (PV)
A Present Value (PV) of $1,376,000 must be invested today at a rate of 3% growth to ensure enough funds are available 10 years from now to perform the remediation work, a (FW) of $1,850,000.
2023 Construction Volume Growth
Construction volume is spending minus inflation. If we want to know whether business is growing, we need to look at spending without inflation, or volume of business.
Volume is what dictates the need for jobs.
If an apple this yr cost 50c, and last yr it cost 40c, the revenue changing hands has gone up 10c or 25%. Volume of business changing hands has not changed, it’s still only one apple.
Inflation adds nothing to the volume of business.
For 2021 and 2022, total construction spending increased 8.5% and 10.6%. But, inflation was 11% and 15%. In both years, inflation was higher than spending. First, subtract inflation from the total spending. That’s gives the dollar amounts for the Spending w/o Inflation Current $ table. Then volume growth can be compared year to year. Volume growth calculation is Vol this yr/Vol last yr, but first, it is dependent on each individual year spending minus inflation.
Volume each individual year is calculated as spending minus inflation. But growth in Volume from yr to yr is Vol this yr/Vol last yr., so is often different than growth in spending.
The volume of construction work completed in 2021 ($1.467tril) is 11% (avg inflation 2021 less than 2021 spending ($1.626tril)
The volume of work completed in 2022 ($1.574tril) is 15% less than 2022 spending ($1.798tril)
So, while Spending growth is 1.798/1.626 = 10.6%, Volume growth is 1.572/1.467= 7.2%.
The table above shows Current Spending and Current Volume. It is not indexed to a common point in time. The table below is Constant Spending which represents Volume indexed to a point in time, in this case 2019. The percent change year to year is what is plotted in charts below.

All the plots below show spending, volume and jobs. Current $ in 2010 are not the same as current $ in 2023, so all $ are indexed to the same constant point in time, constant $, so they can be compared. Constant $ then shows the cumulative growth from that point in time.
This plot shows the cumulative change in Total All Spending, Volume and Jobs since Jan. 1, 2020. From 2019 to 2022, Spending is up 29%, Volume is up only 18% and Jobs are up only about 2%. Below are plots that show the differences in jobs and volume growth for each sector.
Residential 2022 spending is = $900bil. Inflation is 15%. Without inflation, residential volume is up $780bil. Residential spending in 2023 is forecast at $850bil. If residential inflation for 2023 comes in low, say at 4%, then w/o inflation residential volume in 2023 would be $820bil. 2023 spending would be 6% lower than 2022, but volume is 5% higher. All due to the huge bite that 15% inflation took out of 2022 spending.
Recently, residential jobs have been holding relatively close to volume. In 2019 and 2022 they were even. That is not the case for the rest of construction.
Nonresidential Buildings and Non-building Infrastructure constant $ volume since Jan. 2020 is down about 15%. Note how jobs dropped about 5%. This, not residential, is what is driving the deficit of volume shown in the Total All plot above. The major growth forecast in Nonres Bldgs and Non-bldg in 2023 and 2024 should help offset some of the difference.
Both Nonres Bldgs and Non-bldg have (or had) a very large number of jobs not supported by volume. This could be contractors holding on to their labor in a slack period so they have the labor when needed. The volume growth in these sectors would indicate a needed jobs growth that far exceeds the ability of the construction industry to add jobs. Those jobs could potentially absorb a lot of the anticipated growth in the spending forecast.
The current excess of jobs could absorb a lot of the volume growth. In 2020-2021, jobs increased about 2% but volume of work decreased 20% to 25%. These should move in tandem, not in opposition. The data counters the narrative of jobs shortages. In these two sectors, jobs had reached the highest ever excess jobs over volume. This does not address the alternative, skills shortages. But the data seems to indicate there could be a lot of bodies that could take on a large amount of growth in the volume of work.
From Q4’21 to Q1’23, Nonres Bldgs volume increased 25%, $100 billion. Nonres Bldgs jobs increased 4%, 140,000 jobs. A $100 billion add in one year is equivalent need to 500,000 jobs, and yet the workforce added only 140,000 jobs. The rest of the work was absorbed by the current workforce. I expect the volume growth over the next two years will increase much faster than jobs growth. That would be very good for the construction industry.
The volume growth in these sectors would indicate a needed jobs growth that far exceeds the ability of the construction industry to add jobs. The most jobs ever added in the last 50 years is just over 400,000. The average jobs added in the last 12 years is 225,000 (excluding the 230k lost in 2020) and the most in one year in the last 12 years is 320,000. It’s reasonable to assume the industry can add 300,000 to 400,000 jobs a year.
We either accept that we can’t add enough jobs to support increasing the workload by that much or we can’t add the anticipated workload in the forecast.
If we accept the forecast volume growth over the next two years, we simply could not add enough jobs in one or even two years to accommodate all the volume of work forecast. Both the Nonres Bldgs and Non-bldg plots above show a steep incline in the volume of work added, but not nearly as steep an incline in the number of jobs added. This can be correct only if a large percentage of the work added is absorbed by the current workforce. The alternative is that much work can’t be added that fast.
2023 volume growth is $250 billion, mostly nonresidential buildings. It takes 5000 jobs a year to put-in-place $1 billion. Forecasting that growth is put-in-place over 2 to 3 years, that’s about $100 billion/year. That’s 500,000 jobs for 2 to 3 years, which means there is too much work added in a year. My current forecast does not reduce for this, yet.
An extension of this discussion is here The Next Forecast Challenge
Construction Inflation 2023
Construction Inflation
1-16-24 SEE Construction Inflation 2024
1-12-24 PPI Inputs table updated to Dec data, updated quarterly inputs, updated 2023 Firms Inflation plot
12-13-23 PPI ( Inputs Only) updated to Nov data
11-15-23 PPI Inputs and Final Demand updated to OCT data
10-13-23 PPI Inputs updated to SEP data
10-4-23 PPI Inputs and Final Demand tables updated to AUG data
8-11-23 PPI Inputs and Final Demand tables updated to July data
8-19-23 Inflation Table 2015-2025 updated to Q2 2023
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. The balance point for spending is 50-60% into the schedule. Construction inflation should always be calculated from current cost to midpoint of construction, or in the case of 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.
The level of construction activity has a direct influence on labor and material demand and margins and therefore on construction inflation.
- Long-term construction cost inflation is normally about double consumer price index (CPI).
- Although inflation is affected by labor and material costs, a large part of the change in inflation is due to change in contractors/supplier margins.
- When construction volume increases or decreases rapidly, margins change rapidly.
When construction is very actively growing, total construction costs typically increase more rapidly than the net cost of labor and materials. In active markets, overhead and profit margins increase in response to increased demand. These costs are captured only in Selling Price, or final cost 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. This 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 used 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 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.
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.
1-18-23 Construction Analytics PPI Tables and Building Cost Index
Construction Inputs to Nonresidential Buildings dropped for five of of last six months, now down 5.2% since June, but still up 7.2% since last December. However, the average index for 2022, when compared to the average for 2021, is up 15.7%.
The average growth for the year accounts for all the peaks and valleys within each year and is the value carried forward into the index tables and charts. A glaring example of the difference between Dec/Dec tracking, or year over year, and annual average tracking, is Steel Mill Products which is down 28.7% Dec22/Dec21, but the annual average for 2022 is still up 9.0% from the average 2021. In fact, the last three years show Dec/Dec combined inflation is +71%, but the annual averages for the last three years show total inflation growth of 87%. Annual averages should be used to report inflation.
Residential inputs are down seven of the last eight months, down 7.1% since April, but still up 7.1% since last December. The average for 2022, when compared to the average for 2021, is up 12.7%.
Several major cost components have been on decline the last few months: Lumber/Plywood, Steel Mill Products, Fabricated Steel, Steel Pipe and Tube, Aluminum and Diesel Fuel. Of the 15 items tracked here, 10 declined in the last quarter. Concrete is the only product that has not posted any monthly decline in 2022. Costs are still high, but are moving in the right direction after 1st quarter 2022 costs that averaged +7% (28%annual) to +8%. Historically, most cost increases are posted in the 1st quarter and the least in the 4th quarter.
If inputs costs remain where they are right now as we start the year, input costs for 2023 will finish the year at -2% Nonres and -4% Residential. If we were to post small but steady cost increases of 0.25%/mo for the rest of the year, we would end with both Res and Nonres input costs up 4% for the year.
4-14-23 PPI Inputs slowed considerably since last year.
PPI Inputs to Construction March 2023—Nonres down 0.1% in Mar, down 6 of last 12mo, -1%over 12mo. Rsdn down 0.3% in Mar, down 9 of last 12mo, -7.5% over 12mo.
Qtrly change last 5 qtrs Nonres 9.7, 3.0, -3.2, -2.5, 1.6 Rsdn 15.2, -1.4, -5.0, -2.3, 1.0
Historically, the 1st or 2nd qtr would post the highest gains for the year. Here’s 1st and 2nd qtr for 2021, 2022, 2023
Nonres 7.1% & 8.9, 9.7 & 3.0, 1.6 & … Rsdn 8.1 & 12.6, 15.2 & -1.4, 1.0 & …
Last 12 months down -1.0% for Nonres and -7.5% for Rsdn. 1st qtr 2023 1.6 and 1.0, instead of (2022) 9.7 and 15.2% and (2021) 7.1 and 8.1%
Still early, but 12mo, 6mo and 3mo PPI signs are pointing down or at least low increases for construction inputs in 2023
Be careful when referencing the 2023YTD. YTD is the growth so far this year. That is growth AFTER December. That does not represent the growth from the avg 2022. As an example, using Inputs to Nonres, the average growth in 2022 was 15.7%. That could be expressed as a starting Jan index of 100, a Jul 1 index of 115.7 and an ending Dec index of 131.4. The average of all 12 months in 2022 = 115.7, the average being at midyear. Well by averages the midyear index would be 115.7. The 2023YTD index is 2.6% since December (131.4) not 2.6% added to 115.7. This really highlights why it is much better to track the index than to report the percentage.
The last column, YTD vs 2022avg, gives an indication of 2023 avg if current YTD costs remain constant for the remainder of the year.
PPI INPUT TABLES and Inputs plot UPDATED 1-12-24
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. Every three months (Jan, Apr, Jul, Oct) BLS performs an update survey to correct these Final Demand indices. For the past six quarterly updates, about 80% to 90% of the change in the index was posted in the update month. Therefore, Final Demand indices should not be referenced monthly. These are quarterly indices. January is an update month. PPI Final Demand for Jan index is basically the correction for Nov and Dec. The index should NOT be compared mo/mo. Compare qtr/qtr, but make sure to use the correct update month with two other months, (Jan +Dec+Nov)/(Oct+Sep+Aug) The table shows the slowing progression from a 20% annual rate of gain for all of 2022 (avg nonres bldgs), to 2% the last two qtrs to only 0.1% the last qtr. Slowing is good. The last column, YTD vs 2022avg, gives an indication of 2023 avg if current YTD costs remain constant for the remainder of the year.
PPI FINAL DEMAND TABLE UPDATED 11-15-23
The Construction PPI Final Demand for Nonres Bldgs posted declines for the two most recent adjustment months, Apr and Jul. If distributed back to the months being corrected, Apr into Feb and Mar, Jul into May and Jun, it shows all bldgs, except Offc, have at least 6 months of declining cost. Office has been declining for only 3 months but Warehouse has been declining for 8 months.

The final demand PPI index for 2022 nonresidential buildings is substantially higher than Construction Analytics nonresidential buildings cost index reported in the index tables. These PPI values are but one of the references used to develop construction analytics building cost index.
Current and predicted Inflation rates 1-18-23:
- 2020 Rsdn Inflation 4.5%, Nonres Bldgs 2.6%, Non-bldg Infra Avg -0.3%
- 2021 Rsdn Inflation 13.9%, Nonres Bldgs 7.4%, Non-bldg Infra Avg 7.9%
- 2022 Rsdn Inflation 16.1%,Nonres Bldgs 12.9%, Non-bldg Infra Avg 13.8%
- 2023 Rsdn Inflation 1.9%, Nonres Bldgs 4.0%, Non-bldg Infra Avg 4.3%
Current and predicted Inflation updated to Q4’22 3-3-23
- 2020 Rsdn Inflation 4.5%, Nonres Bldgs 2.4%, Nonbldg Infra -0.3%
- 2021 Rsdn Inflation 14.0%, Nonres Bldgs 8.0%, Nonbldg Infra 7.9%
- 2022 Rsdn Inflation 15.8%, Nonres Bldgs 12.2%, Nonbldg Infra 13.8%
- 2023 Rsdn Inflation 2.2%, Nonres Bldgs 4.8%, Nonbldg Infra 4.7%
Current and predicted Inflation updated to Q2’23 8-17-23
- 2021 Rsdn Inflation 13.9%, Nonres Bldgs 8.2%, Nonbldg Infra 7.8%
- 2022 Rsdn Inflation 15.7%, Nonres Bldgs 12.1%, Nonbldg Infra 16.9%
- 2023 Rsdn Inflation 1.2%, Nonres Bldgs 5.4%, Nonbldg Infra 3.9%
- 2024 Rsdn Inflation 4.0%, Nonres Bldgs 3.8%, Nonbldg Infra 3.5%
Current and predicted Inflation updated to Q3’23 10-2-23
- 2023 Rsdn Inflation 1.4%, Nonres Bldgs 6.0%, Nonbldg Infra 3.9%
- 2024 Rsdn Inflation 4.0%, Nonres Bldgs 3.8%, Nonbldg Infra 3.5%

Most of the tables and plots here are cumulative indexes. Construction Inflation annual percent for Nonres Bldgs is plotted on this bar chart. The gray bar represents range of predicted inflation from 8 to 10 sources. The dark line is Construction Analytics (final cost) BCI. The red dash is ENR BCI (input index). The range in 2021 and 2022 was widest ever. The range for 2023 is small.
Construction Analytics Building Cost Index and other industry references
Tables and Plots 2001-2015 updated to Q4’22 2-6-23:

the following table 2015-2024 was updated to Q2 2023 on 10-2-23

In the table above, dividing the current year by the previous year will give the current year inflation rate. All indices are the average rate for the year.
Also in the tables above, all reference indices data is gathered, then all are normalized to a common base, 2019 = 100. This allows to see how different indices compare.
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.
Tables and Plots updated to Q4’22 2-6-23:

This Plot updated to Q3’23 11-15-23:
Plots below updated to Q4’23 1-12-24:
4-21-23 This table and plot is an extension of the tables and plots above. Data is as of Q4 2022, but the table covers from 1967 to 2000. Data is pretty sparse.

Previous year Construction Inflation 2022 – updated 12-10-22
Previous year PPI Tables 2022 Producer Price Index to NOV’22
Links to Data Sources Construction Inflation >>> Links
Construction Spending – Volume – Jobs
12-3-22
This plot is not showing good performance. Volume and jobs should be moving directly in tandem. When inflation is very high, spending climbs rapidly. But most of the climb is just due to inflation. To find out what’s really going on we need to look at business volume. Take out the inflation $.
Business volume = Spending minus Inflation. Inflation adds nothing to business volume. Inflation adds only to the amount of revenue that changes hands.
In 2022, residential spending is up 16%. Sounds great, homebuilder’s revenues are up 16%. It’s great until you note that residential inflation for 2022 is 15%. Real residential business volume for 2022 increased only 1%.
Since Jan.2020 spending is up 20%. Revenues are up 20%. It’s pretty hard to not think you need additional staff to support 20% growth in revenues. But inflation is 30%. Take out the inflation dollars and we find that volume is DOWN 10%. Well, during that time, jobs increased 1 to 2%. And yet, business volume is down 10%. That’s a massive 11%-12% loss in productivity. With labor being about 35% of the total cost of a job, that’s added about 4% to total inflation.
I recently read an article that stated (attributed to Assoc. Bldrs. & Contractors) that the construction industry needs to add 1,000,000 jobs over the next two years. Here’s why that won’t happen:
1) The construction industry has never added more than 440,000 jobs in one year. It’s only gone over 400,000 four times in 50 years, the last time 2005, and never two years in a row. The most construction jobs added in a year since 2011 is 360,000 in 2014. The average growth rate from 2011 thru 2019, and now also in 2022, is 230,000 jobs per year. The most jobs added in any two consecutive years is just over 700,000 in 1998-99 and 2005-06. So, the construction industry may not have the capacity to grow 1,000,000 jobs even in two years.
2) Since the Pandemic, nonresidential construction volume is down 20%, but nonresidential jobs are down only 1.5%. Compared to 2019, nonresidential construction has an 18% business volume deficit. In other words, Nonres construction in 2022 now has 18% more jobs per volume of work put-in-place than it did in 2019. Total ALL construction business volume in that period is down 10% while jobs are up 1.5%.
3) Inflation is playing a key roll here. In 2022, construction spending is increasing $160 billion or 10%. But inflation is 13%. Real total construction business volume in 2022 is down 3%. Jobs are up. For 2023, spending is forecast to gain $80 billion, 4.6%, but after inflation volume will be down 1%. 2023 numbers are driven down by residential.
4) In 2023, nonresidential volume increases $35 to $40 billion. Residential volume drops $50 billion. It takes 4000 to 5000 jobs to put-in-place $1 billion of volume in one year. Nonbuilding and nonresidential buildings growth of $40 billion would need 160,000 to 200,000 new jobs. Some small amount of that will come from the drop in residential. But, go back and read #2 again.
Since Jan 2020, the construction industry as a whole has nearly +175,000 (+2%) more workers to put-in-place -$175 billion (-10%) LESS volume. That’s a huge loss to productivity that may take years to recover, if ever.

















































