footprint, it usually adopts a spiral or "alternating tread" design. Standard dimensions for these compact units include: Stair Width: Typically per side (half the total diameter).
With perfect spiral geometry, 1m² works if you accept a narrow 60 cm walkline. 1m2 stairs dimensions
When every square foot of your home matters, a standard staircase—which can consume upwards of 30 to 50 square feet—is often a luxury you can’t afford. Enter the , a revolutionary design that provides a functional, permanent connection between floors using a footprint of exactly one square meter (approximately 10.76 square feet). footprint, it usually adopts a spiral or "alternating
The short answer is: The long answer involves understanding the specific geometry of spiral stairs, alternating tread stairs, and the strict building regulations that govern them. alternating tread stairs