Sheet metal staircase
The STEEL ONE staircase with boxed iron structure and steps and risers in recomposed press-folded sheet metal with anti-noise rock wool filling, only needs to be fixed to a load-bearing wall for support.
![steel staircase by marretti steel staircase by marretti](https://www.marretti.com/site/wp-content/uploads/2022/10/steel-staircase-by-marretti.webp)
For this model, all the railings of our production are available, of the type: structural glass, with horizontal stainless steel rods, Gaudì, stainless steel laser-shaped panel etc., The stairs are tested with certified load test for a total capacity for each step of 150 Kg.
![stairs in ribbon sheet metal2 stairs in ribbon sheet metal2](https://www.marretti.com/site/wp-content/uploads/2022/10/stairs-in-ribbon-sheet-metal2.webp)
![stairs in ribbon sheet metal1 stairs in ribbon sheet metal1](https://www.marretti.com/site/wp-content/uploads/2022/10/stairs-in-ribbon-sheet-metal1.webp)