Larch staircase, alternating treads

Economical larch staircase with alternating treads, to make climbing easier in spaces of limited size. This staircase model is especially suited to climbing into the attic of the house, while still adding a touch of elegance to the area where it is placed. By cutting them out, 12 cm of stepping space was gained on each tread.

The drawback of this model is that it forces your step when going up and down.