Fabricated Steel Plate Price Trends: BLS PPI Data for Tanks, Plate Work, and Steel Fabrication Bids
Estimators pricing heavy plate fabrications, storage tanks, ductwork, and structural plate assemblies must track material input benchmarks to keep bid estimates aligned with market shifts. Federal statistics from the Bureau of Labor Statistics establish a reliable, documented metric for tracking fabricated steel plate commodities over time.
Federal Index Overview: Series WPU1076
The primary producer price index tracking this market is published under the commodity classification for Metals and metal products. Specifically, the data is collected by the U.S. Bureau of Labor Statistics under series WPU1076, titled "Metals and metal products-Fabricated steel plate, not seasonally adjusted." This benchmark uses a standard index base period of 1982 = 100.
When reviewing these figures, estimators should bear in mind that the numbers are not seasonally adjusted. In addition, the Bureau of Labor Statistics designates figures from recent months as preliminary, leaving them subject to monthly revision for four months after initial publication.
Latest Readings and Window Benchmarks
As of late 2026, the latest available data point reported by the agency is August 2026, which posted an index level of 380.1 (raw figure 380.079). This reading represents the highest monthly value recorded across the entire data window from January 2017 to August 2026. Relative to this peak, the latest number reflects a 0.0% variance.
By contrast, the lowest monthly value within this historical window occurred in January 2017, when the index stood at 214.2 (raw value 214.200). Measuring the difference between the January 2020 pre-pandemic baseline of 219.1 (raw 219.100) and the August 2026 level of 380.1 reveals a cumulative increase of 73.5%.
Key Historical Figures for Fabricated Steel Plate
The table below summarizes essential multi-year benchmark periods from the BLS data series, providing estimators with concrete baseline numbers to evaluate fabrication cost movement.
| Benchmark Period | Index Value | Change to Latest (August 2026) |
|---|---|---|
| Latest Month: August 2026 | 380.1 | +0.0% |
| One Year Earlier: August 2025 | 377.0 | +0.8% |
| Two Years Earlier: August 2024 | 372.8 | +1.9% |
| Five Years Earlier: August 2021 | 306.9 | +23.9% |
| Pre-Pandemic: January 2020 | 219.1 | +73.5% |
| Window High: August 2026 | 380.1 | +0.0% |
| Window Low: January 2017 | 214.2 | N/A |
Short-Term Stability and Recent Adjustments
An examination of the last 13 reported months shows unusual monthly consistency followed by a recent uptick. From August 2025 through July 2026, the index registered identical unrounded published levels across 12 consecutive months:
- August 2025: 377.0 (raw 377.005)
- September 2025: 377.0
- October 2025: 377.0
- November 2025: 377.0
- December 2025: 377.0
- January 2026: 377.0
- February 2026: 377.0
- March 2026: 377.0
- April 2026: 377.0
- May 2026: 377.0
- June 2026: 377.0
- July 2026: 377.0
- August 2026: 380.1
This extended run ended when the index stepped up by 0.8% month-over-month from July 2026 to August 2026. Over the full 12-month span from August 2025 to August 2026, the net change was also 0.8%, while the two-year change from August 2024 (372.8) stands at 1.9%.
Tracking Multi-Year Annual Averages
Looking at annual averages computed from the monthly values helps contractors separate long-term industry movement from short-term plateau periods. The Bureau data reveals clear phases across the past decade:
- 2017: 215.3
- 2018: 221.1
- 2019: 223.7
- 2020: 218.1
- 2021: 284.3
- 2022: 333.7
- 2023: 330.9
- 2024: 348.3
- 2025: 375.1
- 2026 (January–August only): 377.4
After maintaining an average of 218.1 during 2020, plate fabrication costs climbed rapidly into 2021 and 2022. While annual averages flattened slightly in 2023 at 330.9, costs rose again through 2024 and 2025, reaching an average of 377.4 across the first eight months of 2026.
Bidding Considerations for Plate Work and Tanks
When compiling bids for heavy industrial tanks, custom plate assemblies, or complex welded enclosures, estimators cannot assume prices will return to historical pre-2020 norms. Incorporating reliable index tracking helps ensure proposals reflect actual procurement conditions.
Contractors seeking to manage supply chain exposure across long procurement cycles should review Price Escalation Clauses: How to Protect Your Bid From Material Price Swings to establish clear contract mechanics before subcontracts are signed. When preparing large bids involving steel packages, estimators should also align quotes using a standardized Bid Day Checklist for Drywall and Ceiling Subcontractors and trade estimators to capture final supplier adjustments before submitting bid proposals.
Sources
Data referenced throughout this guide is based on official reporting from the U.S. Bureau of Labor Statistics (PPI Series WPU1076).
Published October 30, 2026. No affiliate links on this page. Facts come from the sources linked above; check them for updates.