How to calculate square feet of a wall

This video will show you how to calculate square feet of a wall.
What you need: Measuring tape, calculator.
- Step 1: Measure in square inches (0:04)
Using a measuring tape to measure the width of the wall. In the video the width is 150 inches.
Do the same for the height. The result is 87 inches.
We want to calculate the square feet of the wall, just multiply the width by the height.
We have 87 x 150 = 13,050 square inches
- Step 2: Convert to square feet (0:30)
We want the square feet, so we have to divide by 144 because in a square foot, there are 144 square inches.
13,050 ÷ 144 = 91 sqft
- Step 3: Measure the door that won’t cover the wall area (0:40)
After measuring, we have 36 inches for the width and 82 inches for the height.
Following the same ways in steps 1 and 2, we have: 36 x 82 = 2,952 square inches
Convert to square feet: 2,952 ÷ 144 = 20.5 sqft
Step 4: Subtract the area of the whole wall to the door area to get the net area of the wall (0:55)
91 - 20.5 = 70.5 sqft
Don't forget to add 5% more as a buffer!
That's it. It’s so simple. I hope that after watching the video, you know how to calculate square feet of a wall.

Follow our channel for more useful home improvement tips: Home improvement