A significant portion of building materials, such as softwood lumber and gypsum, are imported from Canada and Mexico and are subject to existing or proposed tariffs. These tariffs, which act as taxes, increase the cost of construction, ultimately affecting home buyers and consumers. The NAHB estimates that new tariffs on Canada, Mexico, and China, could increase construction materials by $3 billion to $4 billion, so they are advocating for tariff exemptions on these materials. The NAHB is urging the White House to exempt construction materials from tariffs against Canada and Mexico.