Terms used in stairs or staircase terminology, technical terms

Terms used in stairs

1. Tread

It is an upper horizontal part of a step on which the foot is placed while ascending or descending a stairway.

2. Riser

This is a vertical member between two treads. This provide support to the treads.

3. Nosing

This is the outer projecting edge of a tread. This is generally made round to give an appearance that is more pleasing and makes the stairs easy to negotiate.

4. Newel post

This is the vertical post placed at the top and bottom ends of flights supporting the handrails.

5. String or stringer

This is a sloping member which supports the steps in stair.

6. Step

This is portion of a stair which comprises the tread and riser. This permits ascending or descending from one floor to another.

Step= Riser + Tread

7. Baluster

It is avertical member supporting the handrail. The combined framework of handrail and baluster is known as blustrade.

8. Rise

This is the vertical distance between the upper faces of any two consecutive steps.

9. Run

This is a total length of stairs in horizontal plane, including landings.

10. Landing

This is a platform provided between two flights.

11. Carriage

This is a rough timber supporting the steps of wooden stairs.

12. Flight

It is a series of steps without any platform or landing or break in their direction.

13. Flier

It is a straight step having a parallel width of tread.

14. Going

This is the width of the tread between two successive risers. In other words it is the horizontal distance between the faces of two consecutive risers.

15. Winders

They are tapering steps used for changing the direction of a stair.

16. Soffit

This is the underside of a stair.

17. Header

This is a horizontal structural member supporting stairs, strings and landings.

18. Staircase

It is the space or enclosure or room which contain the complete stairway.

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