President Trump’s tariffs on Canada are creating clear winners and uneasy allies, with steel and lumber producers embracing the protection while alcohol and dairy groups see the levies as a bargaining chip to push Ottawa to the negotiating table. Steel producers are the most vocal. …Beyond steel, the US lumber industry says Mr. Trump’s tariffs on Canadian wood have given it a boost. Domestic lumber producers are projected to add 2.5 billion board feet of capacity in the next two years. That translates to 1,667 more workers at the mills, 4,150 jobs in supplier industries and 3,100 jobs in surrounding communities, according to the U.S. Lumber Coalition. The coalition noted that Canada’s US market share plummeted from roughly 35% to 19% after first-term tariffs. …Yet these protections carry a price. Builders and manufacturers are paying more for steel and lumber. …While protective tariffs shield primary producers, they squeeze downstream industries caught in the crossfire.