Features easily interchangeable staircase which can convert to a straight line or 90 degree corner arrangement. Steps are 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 41/2” (four and one-half inch) high steps. Handrails and handrail supports are satin finished hardwood. The unit can fit in an 8’ high ceiling room and still provide a 6’6” clearance. Measurements Straight line: 91” L x 36”W, Corner: 58” x 69” L x 36”W. Weight capacity: 350 lbs.