Built using only premium quality components, The Scapin stage riser is one of the most resistant system on the market. The possibilities are endless, all you have to do is combine standard structure elements with custom-made ones to create multilevel bleachers, stage platforms or scaffolding systems. These particular platforms have a circular grill in the middle * Extruded aluminum alloy 6061-T6 * 1’’ Russian birch plywood * Can support a load of 100 lb/sq in * Made in Canada in our workshops