An untopped metal deck features penetrations sized per plan through the bottom flute with a maximum diameter of one and one-half inches. Reinforcing dimensions specify a distance equal to six times the diameter of the larger opening, but not less than twelve inches each way.
BUT NOT LESS THAN 12" EA WAY 6 DIA OF LARGER OPENING THRU BOTTOM FLUTE 1 1/2"DIA MAX MTL DECK PER PLAN
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