Building in the American heartland builds business for Amerhart. The company distributes hardware, lumber, and building materials, including decking, insulation, plywood, shingles, and siding through locations in Green Bay, Milwaukee, Sun Prairie, and West Salem, Wisconsin, as well as one in Perkin, Illinois. Amerhart also offers services, including floor plan design. The company's vendors include Ply Gem Industries, Louisiana Pacific, and CertainTeed. Tracing its roots back to 1940, Amerhart takes its name from the 1963 acquisition of American Millwork and Supply by Hartman Wholesale.