This Architectural Drawing is AutoCAD 2d drawing of Typical cross section of staircase in AutoCAD, dwg file. The Indian National Building Code states that a typical residential building must have a minimum width of 3 feet, 6 inches for a staircase, 10 inches for a tread without a nose, and 10 14 inches for a nose if one is needed. For more details and information download the drawing file.
