STAND-OFF Aluminum 4-Step Ladder w/Quick ReleaseSTAND-OFF ladders are easy to assemble and made from heavy wall 1" marine grade aluminum extrusion with large aluminum steps and an anti-slip strip for a sure footing. Stainless Steel assembly hardware is included. A great light weight, durable addition for any application and ideal for pontoon boats. 350lb (159kg) capacity.Rail Height: 19 3/4" (50.2cm) above the dockDistance to first step: From dock surface, 12" (30.5cm) & 12" (30.5cm) between stepsSteps: 1 3/4" (4.4cm) deep and 14 1/2" (36.8cm) wide