As President Donald Trump ushers in a slew of new policy changes, the proposed 25 percent tariffs on imports from Canada and Mexico—if implemented after the recently introduced 30-day pause—could significantly escalate the cost of lumber, further complicating the already strained U.S. housing market. Some experts predict a near-tripling of costs that could undermine home affordability at a time when the nation grapples with a housing crunch. …According to Carl Harris, chairman of the National Association of Home Builders (NAHB), over 70% of softwood lumber and gypsum, which is used in drywall, originate from Canada and Mexico. …Robert Dietz, chief economist at the NAHB, outlined the risks posed by tariffs as it relates to lumber costs. …Per Dietz, not only could they nearly triple the cost of lumber, a critical component of home building, but they would also drive up prices for consumers, putting homeownership out of reach for many Americans.