Siller Treppen TORNADO Helical self supporting Spiral staircase

This design-spiral staircase can be finished with different looks similar to our model Cobra.‎ It can get a real design highlight in your house if you choose a bronze, silver or for instance a concrete finish.‎ The design shows the characteristic tornado twist in the center of the staircase.‎ As you can imagine this is how we got the name.‎  Further info from manufacturer on TORNADO Siller Treppen