Major Components of Staircase

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Following are the major components:-

1) Step: It is the combination of tread and rise.

2) Rise: The vertical height between two treads is known as rise.

3) Tread: The horizontal upper portion of the step on which the foot is placed for ascending and descending is known as tread.

4) Riser: The vertical or front member of the step is known as riser.

5) Nosing: It is the projected portion of the tread.

6) Going: It is the horizontal distance between the faces of two consecutive risers.

7) Landing: A horizontal platform between two successive flights.

8) Flight: It is a continuous series of steps without any break, between landings or landing and flooring.

9) Headroom: The vertical height between the nosings of one flight, and the bottom of the flight, is known as headroom.

10) String: The inclined member of a stair which supports the ends of steps is known as string.

11) Handrail: It is the inclined rail provided over balustrades. The rail is parallel to the string.

12) Baluster: It is the vertical member fixed between string and handrail.

13) Balustrade: It is the combined framework of handrail and baluster.

14) Pitch: The angle of inclination of the stair with the floor is known as pitch.

15) Scotia: It is an additional moulding provided under the nosing to beautify the step.

16) Soffit: The under surface of a stair is known as the soffit.

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Arbaj Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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