Concrete staircase covered with steamed beech treads, natural varnish, without risers. The staircase is made of 5 winder treads and 7 straight treads. To give it a modern feel, the version without risers was chosen, with 6 cm high strips fitted to protect the wall. The railing was fitted on the outside of the flight so as not to reduce its width. The balusters are turned.