Measurement and material estimate
- Sloped area
- 1,072.091 ft²
- Area with waste
- 1,179.3 ft²
- Estimated tiles
- 1,096
- Sloped length per plane
- 15.414 ft
- Ridge length
- 34.777 ft
- Horizontal roof edges
- 69.554 ft
- Rake edges
- 61.655 ft
- Angle and rise-to-run
- 16.699° · 3.6:12
Use the tile’s effective coverage after overlaps. This rectangular model totals roof edges without deductions for cutouts, chimneys or skylights.
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How it works
Choose a single slope or symmetric gable.
Enter dimensions, overhangs and pitch as a percentage.
Use the manufacturer's effective tile coverage and add a waste allowance.
Frequently asked questions
How is sloped area calculated?
The horizontal area, including overhangs, is multiplied by the square root of one plus the square of the rise-to-run ratio.
How do I estimate a roof with multiple sections?
Calculate each rectangle separately. Check intersections and cutouts on the drawing to avoid counting the same area twice.