How to Measure the Square Footage of a Space for a Wall
- 1). Measure, or calculate, the length of the space that the new wall will occupy. Measure in feet and inches, and then record the value.
- 2). Measure, or calculate, the width of the new wall. For example, a stud wall constructed from 2-inch by 4-inch uprights clad in 1/2-inch-thick sheeting has a total width of 5 inches -- 4 + 1/2 + 1/2 = 5.
- 3). Convert both measurements from feet and inches into decimal feet. Multiply the inches by 0.0833 to convert them to a decimal value. For example, 15 feet and 5 inches is equivalent to 15.4156 because 5 x 0.0833 = 0.4156.
- 4). Multiply the length of the wall by the width. The result is the square footage of the space for the wall. For example, a wall 15.4156 feet long and 0.4156 feet wide has a square footage of 6.42 square feet -- 15.4156 x 0.4156 = 6.4206.
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