Dock Door, Ribbed Design, White, Opening Height 7 1/2 ft, Opening Width 7 1/2 ft, Door Material Steel, Door Height 7 ft 6 in, Door Width 7 ft 6 in, Door Thickness 2 in, Minimum Height Clearance 16 ft, Insulated Not Insulated, Includes Windows Windows Not Included, Gauge 24, Finish Smooth, (2) 24 in x 12 in Non-Insulated Window Lites, (2) Angle-Mounted Track, Hinges, 10-Ball Rollers