What began with one generation’s pioneering work in truss manufacturing evolved when the next generation invented the TrimJoist® system, an open-web, field-trimmable floor joist that redefined construction flexibility. Today, the third generation continues that legacy, expanding Trimjoist’s operations westward while upholding its commitment to USA-based manufacturing. With production facilities in Mississippi and Idaho, Trimjoist manufactures every joist in the United States using domestically sourced lumber and components.