Estimating in Building Construction

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Doors and Windows 191

face veneers. From the specifications, the estimator determines
whether the doors are to be prefinished at the factory or job
finished. He or she decides who will finish the doors if they
must be job finished, and what type of finish is required. Doors
that are prefinished at the factory may require some touch-up
on the job, and damaged doors will have to be replaced. No
matter what type of door is required, the items to be checked
are the same. The specifications must be read carefully.


Metal Doors. The materials used in a metal door may be
aluminum, steel, stainless steel, bronze, or copper. The doors
may be constructed of metal frames with large glazed areas,
hollow metal, tin clad, or a variety of other designs. The


important thing is to read the specifications, study the draw-
ings, and bid what is required. Often, special doors, frames,
and hardware are specified, and the material is custom-
made. Finishes may range from lacquered and anodized alu-
minum and primed or prefinished steel to natural and
satin-finish bronze. Bid only that which is specified.

Door Swings. The swing of the door is important to the
proper coordination of door, frame, and hardware. The names
are often confused, so they are shown in Figure 15.11 to act as
a reminder and learning aid. When checking door, frame, and
hardware schedules, estimators must check the swing as well.

Fire-Rated Doors. Fire-rateddoors are produced under
the factory inspection and labeling service program of
Underwriters Laboratories, Inc. (U.L.) and can be identi-
fied by the labels on the door. The label states the rating
given to that particular door. The ratings given are also
related to the temperatures at which the doors are rated.
Doors labeled in this manner are commonly called “labeled
doors.” The letters used, hourly ratings, temperatures, and
common locations are given in Figure 15.12. Fire doors

FIGURE 15.10.Veneer Cost Comparison.


FIGURE 15.11.Door Hand and Swing.

FIGURE 15.12.Fire Door Requirements.
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