I have a tight 1.8 m × 1.8 m footprint and need a well-proportioned spiral staircase that feels contemporary while showcasing natural wood. The job is to turn this limited space into a comfortable, code-compliant vertical connection that looks light and modern rather than bulky. What I need from you is a full design package: dimensioned drawings that a joiner can follow, a 3-D model I can visualise in SketchUp or similar, and concise notes on rise/run, structural support, and recommended timber species or laminations. If you see opportunities—such as an elegantly profiled handrail or hidden LED lighting in the central column—feel free to propose them, but keep the core concept clean and modern. To make acceptance straightforward, I’ll consider the work complete when I receive: • PDF and editable CAD files of plan, elevation, and section views sized to 1.8 m × 1.8 m • A 3-D file (SketchUp, STEP, or IFC) matching the drawings • A short spec sheet covering lumber sizes, finish suggestions, and basic load assumptions If you have prior examples of compact wooden spirals or can share renders that show a similar modern aesthetic, please include them so I can see your style matches what I’m after.