A new tariff threat from President Donald Trump is adding another layer of uncertainty for the residential construction industry. On Monday, he said most Canadian goods could face a 50% tariff in 30 days if the two countries do not reach an agreement, a move that could touch several materials used in homebuilding.
According to the report, the products most likely to be affected include doors, heating and ventilation equipment, glass, cement and plywood. UBS homebuilding analyst John Lovallo said cement could be the most notable area of exposure, though the American Cement Association estimates Canada accounts for only about 5% of total U.S. cement production usage, which could limit the impact. Lovallo described the situation as confusing, noting that the broader effect on builders may be modest because many Canadian construction materials are already covered by existing tariffs.
Existing duties remain the bigger issue
The report says the new Canadian proposal would not change the Section 232 tariffs already in place, including duties on Canadian softwood lumber, steel and aluminum, copper products, and kitchen cabinets and vanities. Softwood lumber remains the largest concern for many builders: Canada supplied about 74% of the value of U.S. softwood lumber imports in 2024, according to the National Association of Home Builders. The current average tariff on Canadian softwood lumber is 34.83%, with a possible decline to 24.83% later this summer or fall.
Other existing tariffs include a 50% steel and aluminum tariff that began in June 2025, a 50% tariff on imported semi-finished copper and related products that started in August 2025, and a 25% tariff on imported kitchen cabinets and vanities that took effect in October 2025. That cabinet tariff had been scheduled to rise to 50% on January 1 of this year, but the increase was pushed back to January 1, 2027. The new Canadian tariff threat is set to take effect 30 days after the announcement, though the administration could still delay or cancel it if negotiations progress.
The broader trade backdrop is also unsettled. Trump’s temporary 10% global tariffs under Section 122 are due to expire on Friday, July 24, while the administration is preparing new tariffs on dozens of countries. U.S. Trade Representative Jamieson Greer said the plan could involve duties of 10% to 12.5% on 60 countries, including Mexico, the United Kingdom, Japan, Brazil, China and Australia. For builders, the result is not just potential cost pressure, but continued uncertainty around materials such as lumber, resin-based components and plumbing fixtures.
Source: housingwire.com
