Bleachers with Fencing are constructed of 100% welded aluminum angle. Both the seat and foot planks are 10"W. Bleachers include a guardrail system and riser boards on rows 4 and above. Colored bleachers include colored seat plank only. Planks include safety end caps - no sharp edges to snag clothes or skin. Due to constantly changing specifications, please check local building and safety codes to ensure compliance.