Tariff uncertainty from the Trump administration continues to impact home builders across the country, as builders prepare for potential price hikes and supply chain issues. …Lumber remains a primary concern, with countervailing and antidumping duties expected to more than double this fall. Steve Martinez, president of Tradewinds General Contracting in Boise, Idaho, recently spoke with CNBC to emphasize just how much lumber goes into the construction of a new home. “This entire house is built out of wood,” Martinez said. “I mean, we really do have wood on the floor, wood on the walls, wood on the ceiling. Can’t really get away from building a house like this without using a large number of wood products in the home.” As a result, price increases to lumber can cause a huge disruption for home builders. And lack of certainty adds complexity to the home-building process.