Flip-Up Polyethylene Roto Molded 4-Step Dock Ladder - GreyTough and durable, this roto-molded ladder swings up and out of the way, locking in place when not in use. Will not corrode with exposure and will not fade or crack. Molded-in U.V. inhibitors and fungicides.Rail Height: 20-1/2 above the dockDistance to first step: From dock surface, 11-3/4 & 10-1/2 between stepsSteps: Are 4 deep and 14 wideCapacity: 500 lb (227 kg)