Estimating in Building Construction

Wood 169

13–7 Trim

The trim may be exterior or interior. Exterior items include
moldings, fascias, cornices, and corner boards. Interior trim
may include base, moldings, and chair rails. Other trim
items may be shown on the sections and details or may be
included in the specifications. Trim is taken off by the linear
foot required and usually requires a finish (paint, varnish,
etc.), although some types are available prefinished (partic-
ularly for use with prefinished plywood panels).

EXAMPLE 13-25 EXTERIOR TRIM

The exterior trim for the residence is limited to the fascia board and
soffit.

Fascia Board. 1 10, fir

Soffit, Plywood.1/2thick, A-C, exterior

Baseboard.Exterior wall 148 lf; interior wall 149 lf 2

(both sides) doors (25 lf ). 4ranch mold, 421 lf required—

Order 440 lf. 

Order five 4¿ 8 ¿ sheets

Area 1 ¿ 6 – wide104 lf156 sf>32 sf per sheet 4. 87

Order 170 lf

159.6 or 160 lf

Length 52  52 13.913.913.913.9

EXAMPLE 13-26 ROOF ESTIMATE WORKUP SHEET

The workup sheet in Figure 13.54 is for the roofing system for the
residence in Figure 13.8.

FIGURE 13.54.Roof Framing Workup Sheet. 

13–8 Labor

Labor may be calculated at the end of each portion of the
rough framing, or it may be done for all of the rough fram-
ing at once. Many estimators will use a square foot figure
for the rough framing based on the cost of the past work
and taking into consideration the difficulty of work
involved. A job such as the small residence being estimated
would be considered very simple to frame and would
receive the lowest square foot cost. The cost would increase
as the building became more complicated. Many builders

use framing subcontractors for this type of work. The sub-

contractors may price the job by the square foot or as a

lump sum. All of these methods provide the easiest

approach to the estimator.

When estimators use their own workforce and want to

estimate the time involved, they usually use records from

past jobs, depending on how organized they are. The labor

would be estimated for the framing by using the appropriate

portion of the table for each portion of the work to be done

from Figure 13.55.