Cabinets accommodate a single portable fire extinguisher. Regularly furnished: 20 ga. box, 20 ga. tubluar steel door with 18 ga. frame and a continuous steel hinge (brass pin). Steel corner seams welded and ground smooth. Recessed, semi-recessed and surface mounted cabinets are furnished with .125" (0.31 cm) radiused frame. Semi-recessed and surface mounted cabinets are furnished with rolled radius. All components are powder-coated with an electrostatically-applied, thermally-fused, recoatable white polyester finish.