President Trump’s tariff plans threaten to raise US home construction costs, making it even more difficult for Americans already facing a tight housing market. Trump’s proposed 25% tariffs have been delayed until at least March, along with a 10% levy now in effect on products from China, could make building a typical home as much as $29,000 pricier, said David Belman, a second-generation homebuilder in Wisconsin. A large portion of that increase — as much as $14,000 — would come from the tariff on Canada, said Belman. …Current lumber inventories may only last one to two months, even with demand still weak and the US not yet in its peak building season, said Dustin Jalbert at Fastmarkets. “It’s not going to take long for prices to have to start moving higher here to keep the supply chain stocked,” Jalbert said. Lumber futures in Chicago slumped 4.6% Tuesday on news of tariff delays, erasing gains from the previous two sessions.