The FT42 series is a wider version of our ladder truss. With higher loading capacity, this truss can be used in wider spans or truss beams. Many mid size structures, such as tradeshow booths or displays, can be built with it. One of the main advantages of ladder truss lies in its stackability. It is the right choice for creating supportive beams in larger structures. FT42 is often referred to as ladder truss, bisystem, duo truss, I-Beam, double truss, etc.