18" x 24" General Purpose Access Door with Flange - Cendrex Rough Opening Size: 18 &frac14;" wide x 24 &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