Check the wrapper of the exact product you buy, then let the shingle calculator turn your roof into bundles with that figure.
Bundles, coverage and shingles per square
Each row is copied from the maker's technical data sheet or specification for that shingle line. Coverage is stated per square or per bundle, as each maker prints it.
| Shingle | Type | Bundles per square | Coverage | Shingles | Exposure | Source |
|---|---|---|---|---|---|---|
| Owens Corning TruDefinition Duration | Architectural | 3 (of 20 or 22 shingles) | 98.4 sq ft per square | 64 per square | 5-5/8 in | Owens Corning spec |
| Owens Corning Duration Premium | Architectural | 4 (of 16 shingles) | 98.4 sq ft per square | 64 per square | 5-5/8 in | Owens Corning spec |
| Owens Corning Oakridge | Architectural | 3 | 98.4 sq ft per square | 64 per square | 5-5/8 in | Owens Corning spec |
| Owens Corning Supreme | Three-tab | 3 (of 26, 27 and 27 shingles) | 100 sq ft per square | 80 per square | 5 in | Owens Corning spec |
| CertainTeed Landmark | Architectural | 3 | 98.4 sq ft per square | 65 per square | 5-5/8 in | CertainTeed data sheet |
| CertainTeed XT 25 | Three-tab | – | – | 80 per square | 5 in | CertainTeed data sheet |
| IKO Cambridge | Architectural | 3 | 33.3 sq ft per bundle | 20 per bundle | 5-7/8 in | IKO data sheet |
| IKO Dynasty | Architectural | 3 | 33.3 sq ft per bundle | 20 per bundle | 5-7/8 in | IKO data sheet |
| IKO Marathon Plus AR | Three-tab | – | 32.3 sq ft per bundle; 96.9 sq ft per three bundles | 21 per bundle | 5-5/8 in | IKO data sheet |
| TAMKO Heritage | Architectural | 3 (one of 20, two of 22) | 98.4 sq ft per square | 64 per square | 5-5/8 in | TAMKO data sheet |
| GAF Timberline HDZ | Architectural | 3 | – | 64 per square | 5-5/8 in | GAF sheet (copy) |
| GAF Royal Sovereign | Three-tab | 3 | – | 79 per square | 5 in | GAF sheet (copy) |
A dash means the maker's sheet does not give that figure. GAF's own site refused our download, so its two rows come from copies of GAF's product sheets hosted by others; check gaf.com or the wrapper before you rely on them.
What the numbers show
- Three bundles to a square is the most common packing, which is why the calculator starts at 3 bundles. At least one premium line packs four lighter bundles to a square instead.
- A sales square is not always a full roofing square. Several architectural lines cover a little less than 100 sq ft per square, because the coverage depends on the shingle size and its exposure.
- Three-tab shingles come with more pieces per square than architectural shingles, since each piece is smaller.
- Exposure, the part of each shingle left visible, differs between lines, and it changes how much roof one bundle covers.
Ordering with these figures
Work out the roof surface in squares, add the extra for waste, then multiply by the bundles per square for your product and round up. The roof square calculator gives the squares, and the roofing calculator covers the whole roof.
Starter strips and ridge caps are separate products with their own coverage, so count them from their own wrappers.
Common questions
How many bundles of shingles are in a square?
Most lines in the table pack three bundles to a square, and one premium line packs four. Always read the wrapper of the product you buy.
Does one square of shingles cover a full roofing square?
Not always. A roofing square is 100 sq ft of roof, but several architectural lines state slightly less coverage per square, so buy by the coverage on the wrapper.
Why do three-tab shingles have more pieces per square?
Each three-tab piece is smaller than an architectural shingle, so it takes more of them to cover the same area.
Using these figures
You are welcome to cite the tables on this page. Please link to this page as the source, and check the maker's current data sheet before you rely on a single figure.