Sectional steel door model 430 is available in sizes up to 20´2" (6147 mm) in width and 16´1" (4902 mm) in height for a variety of medium-duty applications. These doors feature a 2" (51 mm) panel thickness and a nominal 24-gauge, ribbed, white galvanized steel exterior with 16-gauge steel intermediate and end stiles (Industrial Brown exterior is available). The Model 430 is customizable to any project specification with a variety of additionally available options.