A spiral staircase is a type of staircase that winds around a central column, creating a circular or helical shape. This design allows for efficient use of space, making it ideal for areas where room is limited. Spiral staircases can be made from various materials, including wood, metal, and concrete, and they often feature a handrail for safety. These staircases are commonly found in both residential and commercial buildings, as well as in outdoor settings. They can serve as a functional means of access between different levels, while also adding an aesthetic element to the overall design of a space.