Wildfire smoke has a price, and framing crews are about to pay it. Lumber climbed above $640 per thousand board feet in late July, a one-year high, as more than 900 wildfires burned across Western Canada over a single weekend. British Columbia, the province with the most fires, is also Canada’s largest softwood exporter. When BC burns, North American lumber gets tight.
Why fire season moves the futures board
The connection is direct. Mills in fire zones curtail shifts, log trucks can’t reach cut blocks, and rail lines through affected corridors slow or close. Traders price that disruption in immediately, which is why lumber spiked even though demand hasn’t surged. It’s a supply shock, not a demand one, and supply shocks in a commodity this concentrated move fast. The single-day numbers wobble, lumber actually ticked down slightly on July 27, but the trend line for the month points up, and the underlying risk doesn’t clear until the fires do.
Tariffs stacked on top
Fire isn’t the only thing lifting the price. Softwood lumber carries a 10 percent tariff, with derivative products at 25 percent, so imported wood was already more expensive before a single spark. Stack a supply scare on a tariff floor and you get a market with little room to fall. Lumber has mostly avoided the headlines that aluminum and cement grabbed this summer, but a one-year high changes that.
What builders do about it
Framing contractors get squeezed first, since wood is the bulk of their material cost. Some will lock prices early, some will lean harder on engineered products, and a few more owners will take a second look at mass timber and steel alternatives, especially on projects like Central Washington University’s timber complex or Milwaukee’s Neutral.Edison tower, where engineered wood is specified for reasons beyond price. According to Trading Economics, the one-year high held into late July. Until Canada’s fire season eases, the number on the lumber ticket is a moving target.