Structure: single plank in three layers; solid wood for the riser. Tread or tread with riser with only a frontal riser, or frontal and 1 lateral riser (right or left),or frontal and two lateral riser. The riser can be rounded or bevelled.
Dimensions: length as requested, width 30 cm for the tread; hight 19 cm for the riser. It is also possible to create triangular treads, landings or other over-dimensioned stairs.
Thickness: 1,5 cm / 2,1 cm. In the species antique fir calpestato vissuto and antique larch calpestato vissuto only 2,1 cm is available.
Anti-woodworm treatment: in vacuum HP in drying room at 80°C
Extra finishing available: oiling, deep brushing (only for larch and fir), hand planning.