U.S. homebuyers stand to bear the brunt of higher costs for builders from the new 50-percent tariffs on imported steel and aluminum.

That’s about to double. In a proclamation issued Tuesday, Trump confirmed that the U.S. will begin taxing nearly all steel and aluminum imports at 50% after the clock strikes midnight Wednesday. Steel and aluminum from the U.K., meanwhile, will continue to be levied at 25% due to a recent trade deal.