This architectural drawing is Plan of staircase in detail AutoCAD drawing, CAD file, dwg file. The three main parts of a staircase are the tread, which is the horizontal surface we walk on, the riser, which is the vertical element between each tread, and the stringer, which is a structural support that holds the treads in place and offers stability. The tread and riser are the staircase's two main parts. The riser, which is the vertical component that separates the treads, is the piece that is vertical and horizontal where we put our feet. For more detail and information download the drawing file.
