Spiral staircase

Floor height: 2520mm (99.21”)

Stairs diameter: 1600mm (63”)

Step Qty : 14+1 (final step is lower than celling floor)

Step height: 168mm (6.62”)

Step length: 800mm (31.5”)

Center stringer: Dia 108mm Carbon steel

Tread:50mm

Railing height : 914mm

Railing : classic small post

Top handrail : PVC