President Donald Trump's push to impose tariffs on Canada is causing concern in the construction materials market. Delays and exemptions from the administration have generated uncertainty for companies that import wood, affecting price stability and the supply chain for U.S. construction firms. Andy Rielly, president of Rielly Lumber in British Columbia, mentioned that discussions with clients on how to split the additional costs due to tariffs do not always reach agreements. This lack of clarity regarding prices and availability of materials is generating concern in the sector. Trump has defended the tariffs as a way to make other countries pay, even suggesting the possibility of establishing an 'External Tax Service.' Additionally, an investigation has begun regarding the impact of wood imports on national security, which could result in stricter controls. The uncertainty around tariffs affects builders, according to Don Magruder, CEO of RoMac Building Supply. The possibility that tariffs may be modified or canceled creates an atmosphere of uncertainty that hampers normal business development. The U.S. Lumber Coalition has pointed out that lumber prices account for only a fraction of the housing construction costs, highlighting that factors such as land prices and labor have a greater impact on the final cost. Canada supplies up to 30 percent of the softwood used by the United States, and Canadian operators are already familiar with import duties. Additional tariffs could further increase material costs and impact housing affordability in the United States. Buddy Hughes, president of the National Association of Home Builders, has noted that the tariffs could worsen the situation in that regard.