22" x 30" - Fire Rated Insulated Access Door with Flange - Cendrex Rough Opening Size: 22 &frac14;" wide x 30 &frac14;" high Material: 16 gauge galvanized steel, Finish: Galvanized Steel Lock / latch: 1 x Self latching tool-key operated latch and/or ring operated latch, both included Hinge: Continuous piano hinge Flange: 1" flange