A Spiral stairs is twists around a central support of pole. They typically have a handrail on the outer side only, and on the inner side just the central pole. A squared spiral stair assumes a square stairwell and expands the steps and railing to a square, resulting in unequal steps. These stairs can be made out of steel, timber, concrete or a combination of materials. Most of the spirals are made from steel that are welded together. Such staircase is useful where space is limited but may give difficulties, however it is difficult to take large objects such as furniture, upstairs and also not safer for kids.
Last modified: Saturday, 10 December 2011, 5:11 AM
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