Security room of roof beam detail is given in this 2D Autocad DWG drawing file. Size of roof beam is 300x230mm. 3nos of 12mm dia is provided at the bottom and top. Roof slab is mentioned in this file. Thickness of slab is 125mm. Thank you for downloading the 2D Autocad DWG drawing file and other CAD program files from our cadbull website.
