AH-STR-007 07 / 10
AH-STR-007 · Rooftop spiral stair
Exterior Spiral Stair
An exterior spiral stair from courtyard to roof terrace, turning on a single charcoal steel column. Studded tread plates shed water and give grip, with a rolled handrail along the outer edge over closely spaced balusters.
- Application
- Rooftop spiral stair
- Material / finish
- Charcoal steel / studded tread plates
- Structure
- Central steel column on a bolted base plate
- Treads
- Studded steel plates with drainage
- Finish
- Charcoal exterior coating
- Portfolio reference
- AH-STR-007 · 2026 · Page 86
Materials and finishes reflect the portfolio references. Dimensions, sections, finishes and fixing details are confirmed for your project through approved shop drawings and finish samples.
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