Punched Decking

A patented punched steel deck that drops onto step beams flush, with no waterfall edge to block labeling or bar codes on the beam face. Repeating corrugations give uniform strength across the shelf while the punched openings let sprinkler water, air and light pass to lower levels. The manufacturer holds an FM Approvals certificate for Punch Deck under Class 6914, which tests a deck as equivalent to 70% open area for sprinkler design.