The structure of the iron spiral staircase mainly consists of components such as central columns, step boards, platform boards, and railings. According to the different load-bearing methods, iron spiral stairs can be divided into various types such as central column, curved plate, curved beam, and suspended type. Among them, the central column iron spiral staircase is the most common type, which supports the weight of the entire staircase through the central column, and the step board spirals up around the central column.

The spiral staircase, with its unique charm, has become an indispensable part of architectural design. It is not only a bridge connecting floors, but also a display of spatial art. In future architectural design, with the continuous advancement of material technology and the continuous innovation of design concepts, the spiral staircase will continue to add infinite excitement to our living space with a more diverse and personalized appearance.