Spiral staircase
A spiral staircase can become a spectacular element of home decoration. Typically, this type of staircase is used in case of emergency, when space is limited, or as an addition to a mid-flight staircase. For the construction of a spiral staircase, 1.5 times less space is required, no support beams are required.
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The structural elements of the spiral staircase are the central post, steps and handrails. The width of the steps is not the same, usually increasing from the center to the outer edge. The steps are screwed to the central post in a circle and, as a result, provide a helical rise. To install a spiral staircase, there is no need to support the structure on the load-bearing walls, it is enough to fix the rack to the floor ceilings.
The small size of the tread along the line of movement compensates for the absence of risers in the design. The absence of a vertical support element of the step allows for more convenient positioning of the foot during operation of the ladder. It is extremely inconvenient to move loads along a spiral staircase, which is why this type of structure is used as an additional decor for a room..
The vertical stand is installed strictly vertically. An important point is the fastening of the structure to the floor, the load from the entire ladder is transferred to the attachment point. Anchor bolts are used for fixing or the end of the rack is concreted.