Top View Dimensions for A40-103 Truss Arch System DJ Truss. Standard Arch by lds light design system and edt exhibit and display truss. Standard Display booth for 10’x10′ trade show booth or larger. Can be used as trade show banner backdrop for truss system or dj booth Perfect for banner display and company advertising. Triangle truss, when broken down, nests together while packing, make this truss system very portable.