Siding Squares Calculator
Calculate the number of siding squares needed for your project by entering wall or gable dimensions.
How to Calculate Siding Squares
Understanding Siding Squares
A square of siding covers 100 square feet of wall area. To calculate squares needed:
- Measure wall width and height in feet
- Multiply width × height to get square feet
- Divide total square feet by 100 to get squares
- Add 10% for waste and repairs
Tips for Accurate Measurements
- Round measurements up to the nearest foot
- Account for doors (typically 21 sq ft each)
- Account for windows (measure individually)
- For gables, use total width and peak height