THE FORCE/1
Sidewalls & Insulation Material
FIGURING WALL CAVITY AREA
Measure wall cavity in inches. Multiply depth x width x height. Example:
⁄
⁄
(1)3
1
" deep x 14
1
" wide x 92
2
2
(2)Divide 4,700 by 1,728 = 2.72 cubic feet in the cavity.
Each wall cavity may vary slightly.
(1,728 equals the number of cubic inches in a cubic foot.)
Actual lumber dimensions:
2 x 4 x 8: 1
2 x 6 x 8: 1
⁄
5
" tall = 4,700 cubic inches
8
⁄
⁄
1
inches x 3
1
inches x 92
2
2
⁄
⁄
1
1
inches x 5
inches x 92
2
2
19
19
⁄
5
inches
8
⁄
5
inches
8