The ADA Convertible Space Saver Staircase is an easily interchangeable staircase which can convert to a straight line or 90 degree corner arrangement. The steps measure 11" deep by 36" wide and are equipped with “anti-slip” safety treads. On one end of the unit there are three 6" high steps and the other end features four 4-1/2" high steps. Stairs and platform feature BriteStep—the yellow, hi-visibility, hi-impact 3mm edging which enhances safety and durability. Shipped ready to assemble, and excellent for personal and professional use.