Stringer: Double step shaped steel stringer laterally fitted to the steps, on the railing side the stringer will be deep in order to create a containing framework for glasses
Treads: Realised in steel trays where internally there is a stone or marble cladding
Closed risers: Optional
Stair railing: Characterised by tempered and layered glass, laterally fitted to the steps in the apposite containing framework obtained in the lateral steel stringer