Estimating in Building Construction

(Barré) #1

162 CHAPTER THIRTEEN


EXAMPLE 13-16


FIGURE 13.38.Header Example.

Header Quantity


No. of Openings Size Header Length Pieces


93  0  3  3  18


12  8  2  11  2


Purchase Quantity


Size Length (lf ) Pieces


2  12 10 6


2  12 8 1




Wall Sheathing. Exterior wall sheathing may be a
fiberboard material soaked with a bituminous material,
insulation board (often urethane insulation covered with
an aluminum reflective coating), waferboard, or plywood
(Figure 13.39). Carefully check the specifications and
working drawings to determine what is required (insula-
tion requirements, thickness). Fiberboard and insulation FIGURE 13.39.Typical Wall Section.

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