A wall is then built around the brackets. Then the finished treads are bolted in place. These treads might be of steel or wood or Wooden clad metal. Cantilever ways should be created by a structural engineer, in order that they remain horizontal and rigid with use with time. The https://staircaseinspirations.weebly.com/blog/the-rise-of-cantilever-staircases-in-contemporary-homes