This architectural drawing is Staircase section detail in AutoCAD 2D, dwg file, CAD file. A staircase, often known as a stairway, is a set of one or more flights of stairs that connects two floors. It also includes landings, newel posts, handrails, balustrades, and other components. A stairwell is a space with stairs inside that extends vertically through a building. For more details and information download the drawing file.