Stair Design DWG with Riser, Tread, Landing, and Handrail Layout

This stair design drawing is a professionally drafted AutoCAD DWG file showing a complete stair layout with clearly defined riser, tread, landing, and handrail details. The drawing illustrates standard stair proportions with a riser height of approximately 150 mm and a tread depth of 270 mm, ensuring comfortable and code compliant movement. The stair width is shown as 1000 mm, suitable for residential and commercial circulation. Landing levels are accurately marked with horizontal dimensions and vertical height references, allowing precise floor to floor coordination. Section views clearly explain step alignment, nosing projection, and slab connection details for proper construction execution.

The handrail layout is detailed with a standard height of 900 mm from finished floor level, including fixing positions and alignment with stair slope. Guard and support spacing is indicated to maintain safety and structural consistency. The drawing also includes stair section lines, direction arrows, and level markers to support working drawings and site implementation. This AutoCAD DWG file is ideal for architects, civil engineers, interior designers, and builders who require reliable stair detailing with accurate measurements. It supports efficient planning, reduces drafting time, and ensures clarity in stair construction and interior coordination.