Installation Guide

11
estimating required material
how to measure
1. All houses can be broken down
into shapes of rectangles, triangles or
a combination of both.
2. The area to be sided can be deter-
mined by measuring the height and
width of the house, including win-
dows (below).
3. Total all of the measurements for
the areas to be sided. Windows and
doors are not usually deducted.
Including them will provide an allow-
ance factor for waste. If the windows
and doors are extremely large (such as
garage or sliding glass doors), some
deductions can be made. Dormers and
gables are prone to material waste due
to cutting and fitting.
4. To estimate the amount of starter
strip required, measure the linear feet
around the entire base of the house.
When measuring linear footage, add
a factor of 10 percent to allow for
waste.
width
height
Height____feet x width____feet=____square feet
width
height
(
1
/
2
height)____feet x width____feet=____square feet
A
D
C
B
1
/
2
(A+B)xC+
1
/
2
BxD=___total area of gable

(square feet)
width
width
height
(
1
/
2
height)____feet x width____feet =____total area of dormer
(square feet)