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