Wednesday, 15 June 2016

Types of Stairs

The stairs may be built with wood, concrete masonry or with cast iron. Wooden stairs are not safe, because of the danger of fire. However they are used in buildings to access to small areas in the upper floors.

 Cast iron or steel stairs in the spiral forms were used commonly to reduce stair case area. In many residential buildings masonry stairs are also used. Reinforced concrete stairs are very commonly used in all types of buildings.

Based on the shapes stairs may be classified as
(a) Straight stairs
(b) Dog legged stairs
(c) Well or open-newel stairs
(d) Geometrical stairs
(e) Spiral stairs

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