Market Data
Lumber PPI: What the Index Measures
Lumber, up about 7.6% from a year ago. Lumber is narrower than the full lumber and wood products group. This series must not be described as a combined measure of plywood, panels, doors, windows and millwork.
The BLS Lumber Producer Price Index (WPU081) reads 286.63 index (1982=100) for Aug 2026, up about 7.6% from a year ago. The reference period identifies the observation; a later website refresh does not turn it into a daily price. This is a producer price index, not a delivered quote in dollars per unit.
Lumber is narrower than the full lumber and wood products group. This series must not be described as a combined measure of plywood, panels, doors, windows and millwork.
Read the definition before the number
For a lumber purchase, match species, grade, dimensions, moisture specification and delivery terms before comparing the index with a supplier quote. A pallet also includes fabrication, fasteners, labor and transport; its finished price is not the lumber index.
An index describes price movement for its specified basket. It does not say that every product or every supplier moved by the same amount. Distribution, customer mix and the terms of an individual transaction can produce a different invoice result. Keep the agency identifier beside the label so a similar-sounding category is not silently substituted.
Index points and percentage changes
For two observations from the same series, the percentage change is 100 × (new index / old index − 1). A rise from 200 to 210 is 5%, not 10%. Different PPIs can have different bases and product baskets; subtracting their raw levels does not yield a dollar premium.
Housing starts can help describe construction activity, but this price series alone cannot establish how housing caused a move, predict next month's lumber price or date the best purchase.
Source and update notes
The source is BLS series WPU081, also published by FRED at https://fred.stlouisfed.org/series/WPU081. The linked data page provides the current observation and available history. A successful refresh changes readings only when the source returns changed data. Missing or failed observations must retain their original periods and be reported as unavailable or delayed.
Published 2026-07-13.