Elmdor Drywall Access Panel DW 36 x 48 Rough Opening Size: 36 &frac12;" wide x 48 &frac12;" high Material: 16 gauge galvanneal steel, Finish: Prime coat suitable for painting Lock / latch: 5 x Screwdriver Operated Cam Latches Hinge: Continuous piano hinge Flange: 1" flange