The most popular Aluminum dock ladder manufactured. The 5-Step Aluminum Retractable Dock ladder slides easily up and out of the water. Marine grade aluminum rungs and hangers are reliable and also an attractive addition to your dock or pier. Aluminum Dock Ladders are easy to install and every dock should have at least one. Aluminum Dock Ladders are also available in a 4″ Wide Rung. The 4″ rung Dock Ladder is $229.95. Call for details. Let us help you make the right Dock Ladder choice. A Stainless Steel Mounting Bolt kit (4 bolts,washers and nuts) is available for the Aluminum Dock Ladders. Cost is $17.75 per kit.