Figure 6-13.—Installing cushion-backed carpeting.
Figure 6-14.—Stairways.
STAIRS
LEARNING OBJECTIVE: Upon completing
this section, you should be able to describe a
stairway layout and how to frame stairs
according to drawings and specifications.
There are many different kinds of stairs (interior and
exterior), each serving the same purpose—the
movement of personnel and products from one floor to
another. All stairs have two main parts, called treads and
stringers. The underside of a simple stairway, consisting
only of stringers and treads, is shown in figure 6-14,
view A. Treads of the type shown are called plank treads.
This simple type of stairway is called a cleat stairway
because of the cleats attached to the stringers to support
the treads.
A more finished type of stairway has the treads
mounted on two or more sawtooth-edged stringers, and
includes risers (fig. 6-14, view B). The stringers shown
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