"Rolling docks are the easiest way to install a dock, and the Patriot Docks Patio Roll-In Dock with Poly Decking makes moving your rolling dock ultra-simple. They've become the industry standard, and this dock system can be easily moved in and out of the water with the changing seasons or water levels. This patio-style dock package includes 1 pair of wheels on the lake-end of the dock. Additional wheels can be added throughout the dock to alleviate lifting or to help distribute the weight of longer docks. The modular dock frame utilizes custom aluminum profiles and professional engineering, to create a strong yet lightweight boat dock that's simple and easy to assemble. The 8'L x 4'W frame pieces bolt together which allows for exceptional versatility and customization. Full 12""-high truss work allows for more land on the support pipe creating a rigid structure. Decking panels are made of strong polypropylene reinforced with aluminum. Additional sections can be added to create any style or configuration, including ""T"" and ""U"" shapes as well as fingers and slips. Don't break your back any longer roll in your dock! Patriot Docks aluminum frame and aluminum decking come with a mfrs. limited lifetime warranty. This patio-style roll-in dock can be easily moved in and out of the water Modular dock frame is both strong and lightweight Polypropylene deck panels with aluminum reinforcements High-density polypropylene wheels Simple and easy to assemble"