This specification covers steel expanded-metal doors suitable for installation in expanded-metal bulkheads, structural bulkheads, and structural arches. Expanded-metal doors are furnished in four types: Type I (right hand), Type II (left hand), Type III (right hand reverse) and Type IV (left hand reverse). Doors shall be furnished with the vertical support channels and top angle in place. A temporary brace shall be included at the frame bottom to prevent racking. Doors shall be fitted with rubber-tipped bumpers and a manually operated catch for holding doors in an open position. Provision shall be made for the installation of a rim latch set operated by knobs on both sides. Doors and frames shall be free from all cracks, burrs, sharp edges, and other defects.

1.1 This specification covers steel expanded-metal doors suitable for installation in expanded-metal bulkheads, structural bulkheads, and structural arches.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.