Curved stairway

Floor height: 3040mm (119.69”)

Steps: 18+1 (Final step is second floor)

Step height: 160mm (6.3”)

Step length: 1200 mm (47.25”)

Inner&Outer diameter: 1200-3600mm (47.24”-141.73”)

Stringer: 8+8 box stringer ,black

Steps: 20mm Marble with 6mm tread support

Railing: 12mm clear glass