US Imposes 45% Tariffs on Canadian Lumber Amid National Security Concerns
The Trump administration has imposed additional tariffs on Canadian lumber, bringing total duties to over 45%. While officials cite national security concerns, researchers suggest tariffs alone may not stimulate needed long-term investments in US forestry infrastructure.
Escalating Trade Measures Target Canadian Lumber
President Donald Trump has announced new tariffs on imported timber and wood products, including an additional 10% tariff on Canadian lumber, according to administration officials. These measures, implemented on September 29, 2025, build upon 35% tariffs imposed in August, potentially bringing total duties on Canadian softwood lumber imports to over 45% starting October 15. Sources indicate this represents the latest development in a trade dispute dating to the 1980s, when U.S. producers first alleged Canadian companies benefited from unfair government subsidies.