Access door frame is fabricated from 16-gage galvannealed steel with a prime coat finish and provided with masonry anchors and bolt holes. access door panel is fabricated from 20-gage, galvannealed steel with a prime coat finish. door is filled with 2-inch thick, fire rated insulation, and is welded pan type. access door has spring automatic closure, be self-latching and contains an interior latch release. exterior latching is recessed with a universal self-latching bolt, operated by a knurled knob.