Our 7′ Severe Duty Aluminum Plywood Walk Boards are our extremely tough yet still light weight. This particular model is designed to function with our Internal Stair Tower Packages. The Severe Duty Walk Board features wider hooks for increased stability. After many years in the industry we have redesigned our walk boards to be fully repairable and modular. We use a nut and bolt system compared to the industry standard of permanent rivets. Should the board become damaged or broken this allows you to disassemble and replace individual parts instead of the entire board. Saving you both time and money.