Craftsman CTS205 User Manual
CertainTeed Vinyl Siding Installation Guide
24
Section 5 — Estimating
Siding
Use the illustrations and formulas below and enter totals on
the estimating form on page 27. These formulas apply for both
horizontal and vertical installations.
the estimating form on page 27. These formulas apply for both
horizontal and vertical installations.
NOTE: When estimating for a large project, you may want to
add a waste allowance of 10 percent to the totals for siding,
soffit and accessories.
add a waste allowance of 10 percent to the totals for siding,
soffit and accessories.
Rectangular wall surfaces
Measure height (excluding gables). Measure width
(including doors and windows).
_____________ x _____________ = _____________
(height) (width) (surface area)
Repeat for remaining walls.
Triangular gable end surfaces
Measure height at center (add 1' to allow for waste).
Measure width and divide by half.
_____________ x _____________ = _____________
(height) (1/2 width) (surface area)
Repeat for remaining gables.
NOTE: Lower pitch roofs will produce more waste
than higher pitch roofs.
than higher pitch roofs.