A stair is a set of steps leading from one floor to the other. It may be defined as series of steps suitably arranged for the purpose of connecting different floors of a building. It may also be defined as an arrangement of treads, risers, stringers, newel posts, hand rails and balusters designed and constructed to provide comfort and safe access to the different floors. It provides access between the floors and facilitates movement of occupants from one floor to other. The room or enclosure of the building in which the stair is located is known as staircase. The opening or space occupied by the stair is known as a stairway. In a domestic building the stairs should be centrally located to provide ease of access to all the rooms. In public buildings stairs should be located near the entrance.
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