Cadenza is a helical concrete stair installed in the BASF office STEP2 Unit at NEST in Dübendorf for Empa and Eawag. The stair shows how cutting-edge engineering and fabrication technology enable bespoke designs with radically new aesthetics that efficiently use high-performance materials. The stair demonstrates a structurally optimised use of material, with steps less than 20 mm thick and weighing […]