When your project requires a solid sectional steel door system that will hold up to heavy use, rough handling and extreme conditions look to Overhead Door™ 418 to pack an extra measure of toughness. Fabricated of 16-gauge, flush galvanized steel exterior and 26-gauge steel back cover, these 2" (51 mm) thick doors offer an R-value of 7.35 (1.29 W/m2). A wide array of options allow these doors to meet the most stringent project requirements that call for a degree of thermal efficiency.

Sectional steel door model 426 is ideal for heavy-duty applications requiring protection against the elements. These doors feature a 2" (51 mm) panel thickness, 16-gauge steel intermediate and end stiles, ribbed steel exterior and 26-gauge steel back cover. Polystyrene insulation provides an R-value of 7.35. The Model 426 is a 24-gauge door available in sizes up to 28´2" (8585 mm) in width and 24´1" (7341 mm) in height and is offered in white or industrial brown. A multitude of options including reinforcing struts, movable center posts, and motor operation allow these insulated heavy-duty doors to be used in a variety of commercial and industrial environments.

Our Sectional Warehouse Doors provide a highly efficient design for strength and longevity for use in demanding commercial settings. They feature full 2” thickness for ultimate strength and durability. Optional insulation consists of 1 5/16” expanded polystyrene throughout the door. Both steel and polylaminate backer choices are available to ensure these models are well-suited for a wide range of applications.