Overhead Door's Model 420 Steel Sectional Door is a strong, durable and low-maintenance option that make the perfect commercial garage doors for your industrial warehouse , commercial facilities, and any type of business applications. Highly Durable and Long Lasting Designed for heavy-duty commercial and industrial applications, these doors are available in 16- or 20-gauge galvanized steel, and heights up to 24’1” (7341 mm), and in widths up to 32’2 (9804 mm). Engineered galvanized hinges and fixtures, and a 2” (51 mm) track to meet stringent building codes and wind loading requirements and has a 2” (51 mm) track to meet stringent building codes and wind loading requirements. Versatile Functionality Capable of having design freedom in the amount of visual access and light infiltration, with its individual-panel glazing or a full-sash section. For larger doors, the opening and closing can be operated by an electric motor or chain hoist. Equipped with exhaust ports...