Index lookup · WPUIP2311001
Producer Price Index for the goods inputs to residential construction, a BLS input basket special index covering the material side of homebuilding, lumber, concrete, roofing, and fixtures among others, as one aggregate rather than by material. Index base: June 1986 = 100.
Latest value is 1 month old. Next update expected around Sep 2026.
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Enter a base value, a current value, and a contract amount to see the adjustment.
Strongest average month-over-month move historically: January (+1.2% avg).
Homebuilder cost plus and allowance contracts sometimes cite this basket as a single materials escalator across an entire home build. Because it is a weighted basket, the movement in any one line item a buyer actually cares about, framing lumber or roofing shingles for instance, can differ meaningfully from the basket average.
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 — Inputs to Residential Construction, Goods (BLS series WPUIP2311001), 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.]
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Price escalation in a construction contract is a clause that adjusts the contract price for movements in the published price of a named material, fuel, or labor cost after the bid. It shifts material-price risk from the contractor to the owner, within a defined base period, formula, and cap.
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