53′ Semi Trailer AutoCAD DWG Block Collection Home / AutoCAD DWG Block Collection / 53′ Semi Trailer 53 ft Semi Truck AutoCAD Block AutoCAD DWG format drawing of a 53 ft semic… 53 ft Semi Truck AutoCAD Block AutoCAD DWG format drawing of a 53 ft semic truck, plan, and elevation 2D views for free download, DWG block for semi-trailers. Free DWG Download Add To Favorites 0