Shingle Bundle Calculator Pro (USA)
Accurate Roofing Material Estimator for US Homes
Estimation Results
Total Roof Area
0 sq. ft.
Roofing Squares
0 Sq.
1 Square = 100 sq. ft.
Bundles Required
0
Includes waste factor
How to Calculate Shingles for Your Roof
To ensure accurate results with this Shingle Bundle Calculator Pro (USA), follow these steps used by professional contractors:
- Measure the Footprint: Measure the length and width of your house from the ground. Include overhangs if possible.
- Determine the Pitch: The pitch (steepness) significantly increases the surface area. Use a pitch gauge or measure 12 inches horizontally and see how many inches it rises vertically.
- Account for Waste: never order exactly the calculated amount. Cutting shingles around valleys, dormers, and hips creates waste. 10-15% is standard.
Key Terminology
- Square: The basic unit of roofing measurement in the USA. 1 Square = 100 square feet.
- Bundle: Shingles are packaged in bundles. Typically, 3 bundles equal 1 Square (33.3 sq ft per bundle), but heavier architectural shingles may require 4 bundles.
- Ridge Cap: The shingles that cover the peak (ridge) of the roof where two slopes meet.
