ResourceFull assisted and coordinated the development and production process of an inorganic polymer stair case. The design of the staircase required some demanding properties, typical to Ultra High Performance Concrete (UHCP). UHPC is characterised by its exceptional compressive strength of up to 250 MPa and a remarkable increase in durability. The product enables the elimination of reinforcing steel. This allows construction of sustainable and economic building elements with an extraordinary slim and complex design. The stair case with exceptional mechanical properties was produced and installed at Lier in Q3 2017. A world premiere.