What is a spiral staircase?

A spiral staircase is a special form of winding staircase where the treads are arranged like wedges around a central column (spindle). The spindle takes on the load-bearing function, so no stringers are needed. The result is a space-saving, round staircase.

Important for HTS customers: HTS does not build classic round spiral staircases. As a space-saving alternative, HTS offers the central-post staircase: - Central support post as in a spiral staircase - But rectangular construction instead of round - Outer sides fixed to the walls - Space-saving and stable

If you are looking for a staircase for tight spaces, HTS is happy to advise you on the central-post staircase or other compact solutions such as winder staircases.