Step-by-step instructions
- Enter or select Wall length (ft).
- Enter or select Wall height (ft).
- Enter or select Waste (%).
- Tap Calculate.
- Review the result shown directly below the calculator.
Siding Calculator
Estimate siding area including waste.
How to use the Siding Calculator
Estimate siding area including waste.
What the inputs mean
- Wall length (ft)
- Enter the measurement shown, using consistent units.
- Wall height (ft)
- Enter the measurement shown, using consistent units.
- Waste (%)
- Enter the percentage value requested by the calculator.
Formula or calculation method
Base area is calculated from the dimensions, then the selected waste allowance is added.
Example
Try entering realistic values for Wall length (ft) and Wall height (ft), then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.