Concrete Staircases

Design-led concrete staircases – precision engineering for interiors and exteriors

Modern concrete staircases from Siller unite architectural clarity, technical innovation and a refined, contemporary design language. Suitable for both interior and exterior use, they form powerful, monolithic features within a broad range of architectural schemes.

The emphasis is on developing exceptionally precise cantilevered concrete structures that combine remarkable visual lightness with maximum structural stability. An important milestone was achieved in 2011, when a cantilevered concrete tread only 8 cm thick successfully withstood a test load of 350 kg. It therefore ranks among the most slender solutions of its kind.

This technical capability is based on a specially developed internal composition for the concrete elements. The carefully controlled combination of various additives produces a high-performance concrete with properties precisely matched to the demands of cantilevered structures. Numerous test series established the optimum material composition, enabling exceptionally slender, load-bearing treads to be realised.

Design-led concrete staircases are therefore the outcome of intensive research, engineering precision and creative vision. They feel both substantial and light, robust and elegant — making a confident architectural statement within the space.

The result is staircase solutions distinguished not only by their technical performanc