597
Stair
Construction
18
Learning Objectives
After studying this chapter, you will be able to:
Identify the various types of stairs.
Defi ne basic stair parts and terms.
Calculate the rise-run ratio, number and size
of risers, and stairwell length.
Prepare sketches of the types of stringers.
Lay out stringers for a given stair rise and
run.
List prefabricated stair parts that are
commonly available.
Technical Vocabulary
A stair is a series of steps, each elevated a
measured distance, leading from one level
of a structure to another. When the series is a
Balusters
Balustrade
Built-up stringer
Carriages
Cut-out stringers
Handrail
Headroom
Housed stringers
Newel
Nosing
Platform
Riser
Run of stairs
Stairwell
Straight run
Total rise
Total run
Tread
Unit rise
Unit run
Wall rail
Winders
Winding stairs
Balusters
Balustrade
Built-up stringer
Carriages
Cut-out stringers
Handrail
Headroom
Housed stringers
Newel
Nosing
Platform
Riser
Run of stairs
Stairwell
Straight run
Total rise
Total run
Tread
Unit rise
Unit run
Wall rail
Winders
Winding stairs
continuous section without breaks formed by
landings or other constructions, the terms fl ight
of stairs or run of stairs are often used. Other
terms that can be properly used include stairway
and staircase.
For a period of time, the popularity of the
one-story structure in residential construction
minimized the frequency of stair construction.
Framing carpenters could usually handle the
relatively simple task of constructing the service
stairs leading from the fi rst fl oor to the base-
ment level. However, revival of traditional two-
story styles along with split-level and multilevel
designs has again made fi ne stair construction
an important skill.
Because of European infl uence, main stairs
have often been the chief architectural feature
in an entrance hallway or other area, Figure 18-1.
However, in new construction, public rooms are
usually on the fi rst fl oor. Due to this, there is a
trend to move the stairs to a less conspicuous
location.
Stair construction requires a high degree of
skill. The quality of the work should compare
with that found in fi ne cabinetwork. The parts
for main stairways are usually made in millwork
Run of stairs: A series of steps that is a continuous
section without breaks formed by landings or other
constructions. Also called a fl ight of stairs.
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