Spiral helical stair with circular base and made by Corten
Material strength and compositional harmony – A spiral of metal and stone.
This circular-plan helical spiral staircase, featuring a 320 mm central corten steel column, stands as both a sculptural and functional centerpiece. The seamless helical fascia reinforces the visual flow of the structure, emphasizing its pure and uninterrupted form.
The metal treads are topped with botticino stone, creating a refined dialogue between noble, contrasting materials: the warm, textured corten meets the pale, polished surface of natural stone. The design is completed by a satin stainless steel railing, with a 33 mm round handrail, double flat vertical posts, and five horizontal rods (ø 10 mm), adding rhythm and visual structure.
This staircase is conceived for those who appreciate a bold yet harmonious presence, blending strength and refinement through its thoughtful mix of materials and finishes.






