downloadable front view dimensions for B38-104 Exhibition Truss System. 10’x20′ Exhibit Truss Kits. Banner Truss Structure by edt exhibit and display truss and lds light design systems. This banner truss structure is perfect for framing a banner on the back wall, as well as for hanging lighting along the ladder trusses along the top. All of our aluminum truss systems are durable and lightweight, and easy to transport and set up.