A wall is then created round the brackets. Then the completed treads are bolted in place. These treads might be of steel or Wooden or Wooden clad steel. Cantilever methods need to be built by a structural engineer, to ensure that they remain horizontal and rigid with use as time https://staircaseinspirations.weebly.com/blog/the-rise-of-cantilever-staircases-in-contemporary-homes