Wall Area Calculator
Calculates net wall surface area, subtracting door and window openings.
Lilu Baba's Wall Area Calculator computes net paintable or tileable wall area, letting you subtract door and window openings.
How to use this calculator
- Enter the wall's length and height.
- Optionally subtract the combined area of doors and windows.
- Net wall area updates instantly.
Net Wall Area
—
FAQ
Wall Area Calculator — frequently asked questions
Doors and windows don't need paint or wall material, so subtracting them gives a more accurate material estimate.
Add up the total area of all doors and windows and enter that combined figure.