"Vestil alternating-tread stairs have a unique design that offers a shorter span than traditional steps. Ships knockdown for lower freight costs. U.S.A. OSHA Approved Yes, Safety Chain Included Yes 2, Degree of Angle 56, Step Width in. 9 1/8, Rail Height in. 18, Step Type Steel steps w/raised surfaces, Top Step Height in. 120, Material Type Welded steel, Finish Type Yellow powder-coat, Dimensions L x W x H in. 85 1/8 x 23 1/2 x 162 1/4, Base Size W x D in. 23 1/2 x 85 1/8, Steps qty. 16, Step Depth in. 10 1/2 excluding top step, Top Width in. 23 1/2, Capacity lbs. 350. Alternating-tread step design offers a shorter span than traditional steps Welded steel construction with bolt-on handrails Handrail on each side of unit for safety Includes dual safety chain at the top of the stairs Formed steel steps with raised surfaces for better traction Powder-coated safety yellow finish Ships knockdown for lower freight costs"