Sectional steel door model 420 is designed for heavy-duty use in a variety of commercial and industrial applications. The Model 420 door features a 2″ (51 mm) panel thickness, 16-gauge steel intermediate and end stiles, ribbed steel exterior and a white paint finish. This 20-gauge steel door is available in sizes up to 31´2″ (9500 mm) in width and 24´1″ (7341 mm) in height. Numerous options including weatherstripping, reinforced struts, movable center posts, and motor operation allow these heavy-duty doors to meet nearly any project requirements.
20′ (6096 mm)
9’0″ (2743 mm)
Interlocking flat profile slats (F-158) with endlocks; Aluminum
Stainless Steel
No. 4 brushed steel
Steel plate to support curtain, counterbalance and hood
Extruded aluminum
Helical torsion springs housed in a steel tube or pipe barrel
Face of wall, between jambs
Interior slide bolt
Manual push up