It's MORE than just a rail. Ironbull has elevated dump trailers with a redesigned Side Armor™ system. This upgraded sidewall design keeps our 24-inch, 10-gauge original construction, featuring an oversized break preventing bowing and ensuring unmatched side rigidity. Enhanced Side Armor™ introduces a fully enclosed top rail made of 10-gauge steel to safeguard against potential damage during side loading. Corner reinforcements have also been strengthened, offering additional welding area to reinforce the dump box.With this advanced Side Armor™ system, 7-gauge flooring, and available bed runners, every Ironbull dump trailer boasts an industry-leading dump box, allowing you to concentrate on your tasks with confidence.