Typical cross section of staircase in AutoCAD, dwg file.

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.