CCP concrete helical staircases are cast upside down in bespoke steel moulds. This allows the company to produce helical stairs to suit the geometry of the particular project. The multi-faceted soffits which follow the curved lines of the geometry of the helix are formed with a steel trowel by skilled operatives. The finishes to the helical stairs can be further enhanced with a mixture of fairfacing and the use of applied finishes as shown in the architectural concrete finishes section, in particular, acid etching and polished concrete.
By casting in steel, CCP are able to provide a high quality finish to the treads and risers of the staircase.