From 600 to 1000 mm
From 160 to 245 mm
From 220 to 300 mm
Stringer: Boxed and reinforced steel stringer with welded steel tubolars for steps fixation. The stringer will be fixed to vertical steel beams going from the floor to the slab, and everything will be then hidden into the wall. This solution is preferable when the customer would like a cantilever staircase but the lateral walls are not suitable for the stair support.
Treads: In wood (minimum thickness 80 mm)
Closed risers: Optional
Stair railing: Characterised by square section steel tubolars laterally fitted to the steps and welded to a top steel plate fitted under the ceiling