Spiral staircase Tours

The Tours staircase model, with a diameter of 140cm (4’ 7.12”), is a sturdy industrial cast iron spiral staircase with a (comfortable) rise of 17.5cm per tread. The staircase is available turning anti-clockwise with a speed of 14 steps per full turn (25,71 degrees per tread).

Characteristics

Diameter
Riser height
Weight

: 131cm (4’ 3.6”)
: 20cm (7.9”)
: 33kg / 73 pounds (lbs) per tread

Available configurations:
1. Clockwise with a rotation speed of 25.71 degrees per tread
2. Anti-clockwise with a rotation speed of 25.71 degrees per tread

Quote request

I would like to receice a quote for a * model staircase for a total height (between two finished floors) of cm.