Platform crossbeams are made of galvanized steel with an ergonomic handle cut out for comfort and easy handling, 5/8-inch thick plywood provides a firm and stable platform, Anti pop-up sliding lock system at each end for added safety and security, Load capacity of 75 lbs. per sq. ft. to comfortably support multiple workers, Bolt-on assembly for easy replacement, Versatile design works with standard or arched frames