Lumber futures — contracts to buy or sell lumber at a set price on a future date — last traded at $647.00 per 1,000 board feet on July 27, 2026, down $7.50 or 1.15% on the session, with market data flagged as delayed (CME Group). Meanwhile, Madison's Lumber Price Index put framing lumber at $558.19 per 1,000 board feet as of July 31, as reported by NAHB (NAHB). The gap between these two numbers is partly because they measure different things: futures track exchange-traded contracts, while Madison's tracks actual lumber packages sold in the physical market. But an $89 difference is wide enough to matter for anyone buying lumber or budgeting for construction.

The current price floor sits well above levels seen last September. In early August 2025, lumber futures had dropped 23% and ended that week at $535 per thousand board feet (Wall Street Journal). Futures are now trading roughly $112 above that trough, and the Madison's spot figure is $23 higher. The WSJ characterized that decline as a warning sign for the broader economy. The subsequent rebound complicates that read, though a single commodity's price path is a noisy macro signal at best.

On the trade-policy front, the backdrop has changed. Effective February 20, 2026, tariffs on softwood lumber from Canada were initiated under the International Emergency Economic Powers Act (IEEPA), with associated duties imposed (USITC). This sits on top of long-running penalties called countervailing and antidumping duties, which are meant to offset Canadian lumber subsidies and below-cost selling. The Commerce Department issued a preliminary determination in a review of countervailing duties on Canadian softwood lumber (Commerce Department), and separately published preliminary results of the antidumping duty administrative review in March 2025 (Commerce Department.

The older duties have been part of the cost of Canadian lumber for years. The IEEPA tariffs are different. They are newer, imposed by executive action, and add a layer of political risk that the older duties did not. Canadian producers now face multiple duty layers stacked on top of each other, squeezing their margins at a time when supply is already tight.

Those supply problems have a long history. Canada's 2023 spring wildfire season, described as the worst on record, forced sawmill closures across the country and drove up lumber prices (Reuters). Further back, the December 2021 floods in British Columbia halted operations at Skeena Sawmills in Terrace for a week, with a planned shutdown of nearly a month to follow (Reuters). On the U.S. side, the Forest Service's top official in the Black Hills attributed layoffs at a Spearfish, South Dakota sawmill to changed forest conditions and market forces (South Dakota Searchlight.

The pattern is simple: lumber supply keeps getting hit by disruptions in different places, and each one removes production capacity for a while. When Canadian sawmills shut down due to wildfire or flood, the shortfall ripples through North American supply chains. U.S. mills, limited by forest conditions and labor, cannot make up the difference quickly.

Here is the key distinction for anyone trying to plan. Wildfires and floods are temporary — they disrupt supply, then the mills reopen. Tariffs are different. The IEEPA tariffs stay in place until a president removes or changes them. That makes the cost they add a permanent feature of the market for as long as the policy lasts. Anyone budgeting for lumber or construction costs should treat the IEEPA tariff as an ongoing expense, not a one-time event.

The $89 gap between futures at $647 and the spot index at $558 also deserves attention. Some difference between these two numbers is normal, since they measure different things. But the size of the gap suggests futures traders may be betting that supply will tighten further, partly because of the new IEEPA tariffs on Canadian shipments. The spot index, by contrast, reflects what buyers are paying right now. Anyone using futures to manage their lumber costs should be aware that these two prices may not move in lockstep.

None of this is a prediction about where lumber prices are headed. The facts point to a market where trade policy, supply disruptions, and different price benchmarks are all interacting in ways that make lumber costs harder to predict. For anyone with direct exposure, the variables to watch are clear: the IEEPA tariff rate and how long it lasts, how many Canadian sawmills are running, and the ongoing reviews of the older duties. Each has its own timeline, and each can push the gap between futures and physical prices wider or narrower.