The dock ladder from Multinautic(TM) is made of steel with a robust 1 1/2'' tubular frame with a 1'' thick mounting base. The unit is compatible with the flip-up kit #15529 to flip it up out of the water when needed. Equipped with sturdy handrails above the decking measuring 19.5" in height. The ladder measures 35'' front the top of the dock to the bottom for a total length of 54.5''. Il also presents a depth of 17'' and a width of 19''.The stainless steel assembling hardware is included. The step section bolts into the (2) handrails, only 4 nuts are needed to be removed for winter storage. This product is backed by a 1-year warranty.