Lumber prices have plunged roughly 25% since early August, triggering alarm over a weakening housing market and broader U.S. economic outlook.
At a Glance
- Lumber futures have fallen about 25% since early August as of September 8, 2025.
- Residential building permits dropped to the lowest level since June 2020, while July construction spending slid 3.4%.
- Oversupply built up after tariff-driven stockpiling; mills are now cutting output in response to weak demand.
- Mortgage rates have eased, and traders expect a Federal Reserve rate cut later this month.
Lumber Prices Plunge Amid Market Whiplash
Lumber futures have fallen from their August highs to roughly $522 per thousand board feet. The drop represents a 25% slide in less than five weeks.
This fall echoes pandemic swings, when lumber moved first on supply stress and later on slowing demand, often foreshadowing housing downturns.
Watch now: Does a Lumber crash signal economic trouble for the US?
Housing Activity Fades
Residential building permits fell in July to the weakest pace since June 2020. The downturn shows hesitation by builders as financing conditions shift.
Construction spending dropped 3.4% from its May 2024 record, adding weight to concerns that the sector is cooling faster than expected.
Lumber’s slump underscores this trend, as wood demand closely tracks the volume of new housing starts.
Tariff Shock and Inventory Glut Fuel Downturn
Canadian lumber imports face tariffs near 35%, more than double the prior 15% rate. Buyers rushed to stockpile ahead of the increase.
That buildup created a supply glut, leaving mills and distributors with excess inventory once demand cooled.
The imbalance has pushed prices down and forced a reassessment of production plans across North America.
Producers Pull Back Production
Interfor announced output cuts of about 12%, trimming 145 million board feet through extended shutdowns and shorter shifts.
Domtar is following suit, laying off workers and scheduling indefinite downtime at select Canadian mills.
More curtailments are expected if the oversupply persists, raising the prospect of tighter capacity later in the year.
Mortgage Relief Offers a Flicker of Hope
Mortgage rates have begun easing after peaking earlier this summer, improving affordability for some buyers.
Markets anticipate the Federal Reserve will cut rates this month, potentially unlocking pent-up demand in housing and renovation projects.
Whether that stimulus arrives in time to lift lumber demand remains uncertain, leaving the market braced for further volatility.
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