How Many Bundles of Shingles Are in a Square?
How many bundles of shingles in a square? Most 3-tab and architectural asphalt shingles are packaged 3 bundles per square, and one square covers 100 square feet of roof. Some heavier premium or designer shingles need 4 or 5 bundles per square. Always check the coverage printed on the wrapper, since it is the final word.
Asphalt tonnage calculator →Bundles per square by type
| Shingle type | Typical bundles per square |
|---|---|
| 3-tab | 3 |
| Architectural / laminated | 3 |
| Premium / designer | 4 to 5 |
| Hip and ridge caps | Sold by linear feet per bundle |
| Starter strips | Sold by linear feet per bundle |
Each bundle of a 3-bundle product covers about 33.3 square feet.
How to estimate bundles for a roof
- Find roof area. Measure each roof plane, or multiply the house footprint plus overhangs by a pitch factor.
- Convert to squares by dividing square feet by 100.
- Add waste: about 10 percent for simple gable roofs and 15 percent or more for hips, valleys, and dormers.
- Multiply by bundles per square.
- Add starter and ridge cap bundles separately.
Example: a 2,200 square foot roof is 22 squares. With 12 percent waste, about 24.6 squares, rounded up to 25. At 3 bundles per square, that is 75 bundles plus starter and ridge caps.
Pitch multipliers
| Roof pitch | Approximate multiplier |
|---|---|
| 4/12 | 1.054 |
| 6/12 | 1.118 |
| 8/12 | 1.202 |
| 10/12 | 1.302 |
| 12/12 | 1.414 |
Multiply flat footprint area, including overhangs, by the multiplier to estimate true roof area. Pitch also matters for shingle eligibility. See minimum roof pitch for asphalt shingles.
Starter and ridge
- Starter strips go along eaves and often rakes. Measure those edges in linear feet.
- Hip and ridge caps cover ridges and hips; measure linear feet and divide by bundle coverage, often around 20 to 35 linear feet per bundle depending on product.
Other materials per square
- Nails: about 320 per square at 4 nails per shingle. See how many nails per shingle.
- Underlayment: synthetic rolls often cover multiple squares.
- Drip edge, flashing, and vents.
Weight
Three bundles of architectural shingles weigh roughly 200 to 250 pounds or more. See how much asphalt shingles weigh.
Buying tips
Buy all bundles for a roof from the same production lot when possible, because colors can vary slightly between runs. Many suppliers accept returns of unopened full bundles, so ordering a couple extra is usually cheaper than a second delivery. Store bundles flat, off the ground, and out of direct sun until installation so they do not bend or stick together.
Bottom line
Most asphalt shingles come 3 bundles to a square covering 100 square feet, though some heavy designer lines need 4 or 5. Estimate roof squares, add 10 to 15 percent waste, multiply by bundles per square, then add starter and ridge caps.
Questions people ask
How many bundles of shingles are in a square?
Usually 3, though some premium shingles need 4 or 5.
How much area does a bundle of shingles cover?
About 33.3 square feet for a 3-bundle-per-square product.
How many bundles do I need for a 1,000 square foot roof?
About 30 bundles plus 10 to 15 percent waste, starter, and ridge caps.
What is a roofing square?
100 square feet of roof area.
Do I need extra bundles for waste?
Yes, about 10 percent for simple roofs and 15 percent or more for complex ones.
Related guides
- How Much Do Asphalt Shingles Weigh?
- Minimum Roof Pitch for Asphalt Shingles
- How Many Nails Per Shingle? Placement and Sizes
- Black Asphalt Shingles: Heat, Looks, Lifespan and Cool-Roof Alternatives
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