View our Commercial Sectional Garage Door Gallery - The premier line of insulated sectional steel doors available today: Wayne Dalton's Sectional Steel Doors are an ideal choice for applications that demand the highest levels of thermal efficiency, air infiltration, and wind load resistance.
Wayne Dalton's ThermoMark™ insulated doors help minimizes energy costs and provides year-round comfort and security for your building. Hot-dipped galvanized steel and rugged construction give the door years of solid performance for the most demanding conditions.
The Thermospan® Series doors are the only doors in the industry with patented, roll-formed integral struts on each section, making them the most rigid doors available.
Wayne Dalton's Non-Insulated Sectional Steel Doors are available in a wide variety of sizes and configurations. Our design provides high strength at an excellent value,