Steel Truss docks are designed for maximum strength, using horizontal and vertical angle supports, diagonal round bar supports, corner gussets mitered and seam-welded, and pre-punched holes for easy attachment of hardware. Steel Truss docks offer a higher 12" frame profile, which is good for applications with larger/taller boats, rougher waters, or where a sturdy dock is needed. Steel Truss docks are easy to maintain and can be used in certain salt-water applications.