Producer Price Index for metal window and door manufacturing.
Paste straight into Excel, Google Sheets or an email. Spreadsheet format lands as two columns.
| Month | Value | Change m/m |
|---|---|---|
| Sep 2026 | +0.3% | |
| Aug 2026 | −0.0% | |
| Jul 2026 | +0.2% | |
| Jun 2026 | +0.1% | |
| May 2026 | +0.5% | |
| Apr 2026 | +1.0% | |
| Mar 2026 | +0.5% | |
| Feb 2026 | +1.1% | |
| Jan 2026 | +0.3% | |
| Dec 2025 | +0.3% | |
| Nov 2025 | +2.2% | |
| Oct 2025 | +0.4% | |
| Sep 2025 | +0.7% |
Same numbers as the chart, straight from BLS. Dates are the first of each period, the way BLS reports them.
Metal windows and doors rose 7.1% over the last 12 months, but 1 of its main inputs rose faster: extruded aluminum shapes, including rod, bar, and wire +26.1%. That cost pressure may still pass through to prices.
Fabricated metal product mfgArchitectural & structural metals mfgOrnamental & architectural metal prod mfg
A starting point citing this series by name and code. Replace the bracketed terms with your contract's actual scope before use.
The [affected portion] of the Contract Price shall be adjusted using US PPI — Metal Window and Door Manufacturing (BLS series PCU332321332321), published by BLS. Base Period: the index value published for September 2026 (or the month of contract signing, if different) is the Base Value. Adjustment: at each Adjustment Date, the Current Value is the most recently published three-month average of the index (the Averaging Window). The Escalation Factor equals Current Value divided by Base Value. Cap: the Escalation Factor applied under this clause shall not exceed 1.10 or fall below 0.90 (a 10% cap and floor) in any single Adjustment Date, regardless of the index's actual movement. [Replace bracketed terms with your contract's actual affected-portion definition and adjustment-date schedule before use. This is a drafting starting point, not legal advice.]
A finished-product index for window and door units, useful in a building envelope contract where glazing and framing are priced as installed assemblies, not raw glass and metal.
Divide the current value of BLS series WPU1311 (Flat Glass) by its value at contract signing, then apply that ratio to the flat glass part of the price. A usable clause also names an averaging window, a rule for revised values and missing months, and a cap.
Escalake tracks US PPI — Metal Window and Door Manufacturing, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.