Producer Price Index for the NAICS 32721 industry, glass and glass product manufacturing, a PCU series covering flat glass, glass containers, and other glass products produced by that industry together. Index base: December 2003 = 100.
Latest value
184.28
Index · as of Aug 2026
Year-over-year change
+4.3%
BLS
Month-over-month change
-0.1%
Latest value is 1 month old. Next update expected around Sep 2026.
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Price history
Data & insights
Key figures
From Jan 2024 to Aug 2026 the index went from 169.3 to 184.3, a change of +8.9%.
Highest reading in that period: 184.5 in Jul 2026. Lowest: 168.8 in Apr 2024.
Largest one-month rise: +2.1% in Jan 2026. Largest one-month fall: -0.6% in Apr 2025.
The year-over-year change stayed within 10% either way in each of the last 20 months, so a 10% annual cap or floor would not have been reached.
Volatility (12mo)
±0.60%
Std. dev. of month-over-month change
Strongest average month-over-month move historically: January (+1.5% avg).
What this means for your clause
Glazing and curtain wall subcontracts cite this industry series as a glass cost escalator when no narrower flat-glass-only series is available, though it also picks up container and specialty glass output that a building glazing contract never buys.
Draft a clause
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 — Glass and Glass Product Manufacturing (BLS series PCU32721-32721-), published by BLS.
Base Period: the index value published for August 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.]
Compare the current value of BLS series WPU1311 (Flat Glass) to its value at contract signing, turn that into a ratio, and apply the ratio to the flat glass-affected line items. A usable clause also names an averaging window, a publication-lag rule, and a cap.
Escalake tracks US PPI — Glass and Glass Product Manufacturing, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.
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