A medium opening is framed within a steel deck, incorporating L 1 1/2 x 1 1/2 x 1/4 typical angles located below the deck. The angles are welded to the lower flute with 3/16 fillet welds spaced at 2 inches typical each lower flute. Dimensions indicate a 1 foot 0 inch maximum opening width flanked by 1 foot 6 inch minimum clear zones, with edge spacing ranging from 1 inch minimum to 3 inches maximum. At concrete fill conditions, a 16 gauge edge form is required around the opening perimeter.
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