The office building typical floor layout plan AutoCAD drawing shows rain water khurta size=450x450mm, structural glazing as per vendor's detail, face of r.c.c slab, 1200x450,16000 cfm staircase pressurization duct for basement, 900x350mm shaft for exhaust air in case of fire & ref pipe and 950x300mm fresh air louver with bird screen detail in dwg file. Thank you for downloading the AutoCAD drawing file and other CAD program files from our website.