Going Against the Grain: New 10–50% Tariffs on Imported Timber and Lumber

On Sept. 29, 2025, the White House issued a presidential proclamation imposing tariffs of 10 to 50 percent ad valorem on timber, lumber, and derivative wood products imported into the United States. These tariffs were imposed under Section 232. Citing national security concerns, the proclamation follows a U.S. Department of Commerce investigation which concluded that rising imports threaten the U.S. wood industry’s ability to support critical infrastructure and defense needs. You can also reference the related White House Fact Sheet.