HSS SuperStruct custom tubes are BUILT TO FIT into your architectural, construction, and OEM projects. We are capable of fabricating custom HSS squares from 12" to 60" and rectangles from 12" x 10" up to 60" x 58" outside diameter with wall thickness from 313 to 1" in a variety of steel grades. These large tubes are available in lengths up to 55 feet with our standard 2" inside corner radii. Find out how HSS SuperStruct provides the solutions you need! (less)