16" x 20" TM - Multi-Purpose Access Panel with 1" Trim for Walls & Ceilings - JL Industries Rough Opening Size=16 &frac38;" wide by 20 &frac38;" tall";" Material: 16 gauge steel, Finish: White powder coat primer Lock / latch: Screwdriver Operated Cam Latch Hinge: Continuous concealed hinge Flange: 1" flange