Large, robust industrial holder. My system is divided by about two feet between each rail. On one side is a Stihl combination system (engine, edger, weed eater and hedge trimmer). No weight issues. I then did the other side with shovels, rakes, brooms, and a Stihl backpack blower (great commercial quality) and the thing didn't even move, flex, or show any signs of weakness. Would definitely buy another one if I need more wall storage.