Spiral stairs: options for designs, assembly and installation
To move between floors, stairs have been erected for a long time, and even high-speed elevators are not able to force them out. Rapid movement between two adjacent levels is possible due to the steps, because the elevator sometimes has to wait a long time. The spiral staircase, in turn, can conveniently connect several floors with a high hall at once, which is why it has been widely used in hotels.