These 16 gauge galvannealed steel access doors are installed over cleanout plugs, valves, controls or equipment concealed in walls and ceilings. Door frames are 1” (25) wide, one piece constructions. Hinges are concealed to prevent distortion. Doors have rounded corners for safety. Engineered for secure face-of-the-wall installation, 1/4” (6) diam. holes permit anchoring on tile, masonry or dry wall construction. They are available in square and rectangular configurations from 6” (152) sq. to 48” (1,219) sq. and are delivered primed are ready-to-paint. The larger sizes permit entrance to utility and attic spaces.