An 18-gauge square plate surrounds the pipe sleeve penetration at the steel deck, fastened with number 10 sheet metal screws at six inches on center each way. Sizing criteria require a twelve-inch square plate for pipe diameters up to four inches, a twenty-four-inch square plate for diameters up to eight inches, and a thirty-six-inch square plate for diameters under twelve inches.
JK2RTS09 PLAN STEEL DECK PIPE SLEEVE 18GA PLATE W/ #10 SHEET METAL SCREWS @ 6" O.C. EA. WAY 24"SQ. ≤ 8"DIA. 36"SQ. < 12"DIA. 12"SQ. ≤ 4"DIA.
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