The wooden-stainless steel staircase comprises wooden steps supplied in various types of wood (Beech, Oak, Doussie, Wenge, Teak, Iroko) and with several finishes (oil, bleached, polyurethane varnishes, etc). The thickness of the step and riser (73-80 mm) can vary depending on the width of the staircase. A bearing wall is necessary to anchor the steps. The cantilever staircases have a patented wall fastening system with steel pins and they are tested with a certified load test for a total capacity for each step of 150 Kg. The banisters (registered model) are completely made of stainless steel without welds but with mechanical fastenings or with curved posts Gaudì model with 3 brass-stainless steel-copper branches or completely made of structural glass or with laser-shaped stainless steel panels. The metal parts of the banisters are completely made of stainless steel with no welds and are assembled only through mechanical fastenings. The finish can be polished or satinised.