420 Series
 
The 420 Series door is designed for heavy-duty use in a variety of commercial and industrial applications. The 420 Series features a 2" (51 mm) panel thickness, 16-gauge steel intermediate and end stiles, ribbed steel exterior and a white paint finish. The 420 Series is a 20-gauge steel door available in sizes up to 31´2" in width and 24´1" in height (9500 mm and 7341 mm). Numerous options--including weatherstripping, reinforced struts, movable center posts, and motor operation -- allow these heavy-duty doors to meet nearly any project requirements.