Fire Rated Access Door, Flush Mount, Insulated, Material 20 ga Galvanized Steel Door; 16 ga Cold Rolled Steel Frame, Access Door Installation Ceiling, Upward-Swing, Door Height 24 in, Door Width 24 in, Rough Opening Height 24 3/8 in, Rough Opening Width 24 3/8 in, Closure Type Hex Head Slam Latch Outside and Self-Latching Ring Operated Slam Latch Inside, Hinge Type Piano, Mounting Hole Size 8 Holes Diameter 1/4 in, Finish White Powder Coated Primer WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -