Bleachers are available with steel or aluminum frames in lengths of 15', 21' and 27'. All seats, risers and footboards are 2" x 10" (Standard) or 2" x 12" (Deluxe) aluminum planks with aluminum end caps. Seats and Risers are anodized aluminum. Footboards are natural finish. 2" x 6" ground sills are optional. 5-row bleachers comes with 1-3/8" o.d. pre-assembled guardrails made of 11 gauge, galvanized mesh or 1/2" solid steel vertical bar, galvanized, and has double footboards and risers on the 4th and 5th rows. Optional aisle and handrailing available.