Cendrex AHD Access Door 20 x 20 Rough Opening Size: 20 &frac14;" wide x 20 &frac14;" high Material: 16 gauge cold rolled steel, Finish: High Quality White Powder Coat Lock / latch: 1 x Screwdriver Operated Cam Latch Hinge: Concealed pin hinge Flange: 1" flange