A few technical terms
generally used for the design of stairs are defined below:
1. Baluster: It
is a vertical member supporting the handrail. The combined framework of
handrail and baluster is known as a balustrade.
2. Flight: It
is a series of steps without any platform or landing or break in their
direction.
3. Tread: It
is an upper horizontal part of a step on which the foot is placed while
ascending or descending a stairway.
4. Step:
This is a portion of a stair that comprises the tread and riser. This permits
ascending or descending from one floor to another.
5. Riser:
This is a vertical member between two treads. This provides support to the
tread.
6. Rise:
This is the vertical distance between the upper faces of any two consecutive
steps.
7. Flier: It
is a straight step having a parallel width of the tread.
8. Landing:
This is a platform provided between two flights.
9. 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 stair easy to negotiate.
10.
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.
11.
Winders: They are tapering steps used for changing the direction
of a stair.
12.
String or Stringer: This is a sloping member which supports the
steps in a stair.
13.
Newel Post: This is the vertical post placed at the top
and bottom ends of flights supporting the handrails.
14.
Run:
This is the total length of stairs in a horizontal plane, including landings.
15.
Soffit: This is the underside of a stair.
16.
Header: This is a horizontal structural member supporting stair
stringers or landings.
17.
Carriage: This is a rough timber supporting the steps of wooden
stairs.
18.
Staircase: It is the space or enclosure or room which contains the
complete stairway.
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