Surface Area Calculator
Calculate precise surface areas and paint coverage requirements for your commercial painting project with our professional measurement tool.
Professional Surface Area Calculator
Get accurate surface area measurements and paint coverage estimates for your commercial project.
Surface Measurements
Wall Dimensions
Deductions (Doors, Windows, etc.)
Calculation Results
Enter measurements to see calculations
Professional Calculation Features
Our surface area calculator provides accurate measurements for commercial painting projects.
Precise Measurements
Accurate wall, ceiling, & surface area calculations.
Paint Coverage
Calculate exact paint quantities needed for your project.
Deduction Handling
Automatically subtract doors, windows, & openings.
Multiple Areas
Calculate and combine multiple rooms and surfaces.
Measurement Best Practices
Essential tips for accurate surface area measurements in commercial spaces.
Measuring Tips
- Use a laser measure for accuracy in large spaces
- Measure to the nearest 0.1 foot for precision
- Account for irregular ceiling heights
- Include all surfaces to be painted
Deduction Guidelines
- • Standard door: 21 sq ft (3' x 7')
- • Standard window: 15 sq ft (3' x 5')
- • Double doors: 42 sq ft (6' x 7')
- • Measure custom openings individually
Need Professional Measurements?
Our experts can provide precise on-site measurements and detailed project estimates. Get professional accuracy for your commercial painting project.
Want us to confirm your measurements?
Send your surface areas and our estimators will verify quantities and provide a firm material and labor quote — free and no obligation.
- Free, no-obligation estimate
- Licensed & insured commercial crews
- Response within one business day