Index lookup · WPU09141107
Producer Price Index commodity data for unbleached kraft paperboard used in packaging and industrial converting, a specific paperboard grade distinct from bleached or recycled grades. Index base: December 1999 = 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: August (+2.3% avg).
Fits a purchase contract between a converter and its paperboard supplier that names the kraft grade explicitly, since kraft, recycled, and bleached paperboard price on different cost structures. Name the grade in the clause text itself, a generic paperboard reference with no grade named invites a dispute over which series applies.
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 — Unbleached Kraft Packaging and Industrial Converting Paperboard (BLS series WPU09141107), 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.]
Want this in a spreadsheet instead? Use =ESCALAKE("wpu09141107") in Google Sheets →
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Compare the current value of BLS series WPU091411 (Paperboard, Excluding Corrugated Paperboard in Sheets and Rolls) to its value at contract signing, turn that into a ratio, and apply the ratio to the paperboard-affected line items. A usable clause also names an averaging window, a publication-lag rule, and a cap.
Read more →Escalake tracks US PPI — Unbleached Kraft Packaging and Industrial Converting Paperboard, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.
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