"This Metaltech scaffold platform section is built with rugged 5/8in. thick plywood deck with an aluminum protective edge. It includes slide locks on each end and is designed to work with standard or arched frames. Meets OSHA requirements. Material Type Aluminum w/wood deck, Platform Material 5/8 in. plywood, Platform Size W x D in. 84 x 19, Capacity lbs. 75/sq. ft., Hardware Type Platform. Capacity of 75 lbs./sq. ft."