How Many Roof Shingles per Bundle?
The number of roof shingles per bundle depends on the shingle type, thickness, and manufacturer. Here's the definitive reference:
Architectural shingles: ~21 per bundle. 3-Tab shingles: ~26 per bundle. Both cover 33.3 sq ft per bundle, and 3 bundles = 1 roofing square (100 sq ft).
Shingle Count by Type
| Shingle Type | Shingles per Bundle | Bundles per Square | Coverage per Bundle | Weight per Bundle |
|---|---|---|---|---|
| Architectural (Dimensional) | 21 | 3 | 33.3 sq ft | 65–80 lbs |
| 3-Tab Standard | 26 | 3 | 33.3 sq ft | 50–65 lbs |
| 3-Tab Heavy | 29 | 3 | 33.3 sq ft | 60–70 lbs |
| Premium / Luxury | 15–18 | 4–5 | 20–25 sq ft | 75–100 lbs |
| Impact-Resistant | 19–21 | 3 | 33.3 sq ft | 70–85 lbs |
Count by Manufacturer
| Manufacturer | Popular Product | Type | Shingles/Bundle |
|---|---|---|---|
| GAF | Timberline HDZ | Architectural | 21 |
| GAF | Royal Sovereign | 3-Tab | 26 |
| Owens Corning | Duration | Architectural | 21 |
| Owens Corning | Supreme AR | 3-Tab | 26 |
| CertainTeed | Landmark | Architectural | 21 |
| CertainTeed | XT 25 | 3-Tab | 26 |
| IKO | Cambridge | Architectural | 21 |
| Atlas | StormMaster Shake | Impact-Resistant | 19 |
Why Do Bundle Counts Differ?
The count difference comes down to shingle thickness and weight:
- Architectural shingles are laminated (two layers bonded together), making each shingle ~50% thicker and heavier. Fewer fit in a bundle while maintaining the standard 33.3 sq ft coverage.
- 3-Tab shingles are a single layer, thinner and lighter, allowing more shingles per bundle.
- Premium/Designer shingles (like GAF Grand Canyon or CertainTeed Grand Manor) are even thicker, so bundles contain as few as 15 shingles and may require 4–5 bundles per square.
Coverage per Individual Shingle
| Shingle Type | Shingle Size (inches) | Exposure | Coverage per Shingle |
|---|---|---|---|
| Architectural | 13.25 × 39.375 | 5.625″ | ~1.54 sq ft |
| 3-Tab | 12 × 36 | 5″ | ~1.25 sq ft |
The "exposure" is the visible portion of each shingle after overlapping. While the full shingle is larger, only the exposed area counts toward coverage.
Bundle Ordering Tips
- Always round up — you can't buy partial bundles.
- Buy 1–2 extra bundles for future repairs. Shingle colors vary by batch, so extras from the same batch ensure color matching.
- Check the pallet count — full pallets (42–63 bundles) are usually cheaper per bundle than loose bundles.
- Verify coverage on the package — some premium shingles don't follow the standard 33.3 sq ft/bundle rule.
Frequently Asked Questions
Are there always 3 bundles per square?
For standard architectural and 3-tab asphalt shingles, yes — 3 bundles = 1 square (100 sq ft). Premium and designer shingles may require 4–5 bundles per square. Always check the manufacturer's packaging.
How many bundles on a pallet?
Most architectural shingle pallets contain 42 bundles (14 squares of coverage). 3-tab pallets may contain up to 63 bundles. Buying by the pallet is typically 5–10% cheaper per bundle.
Calculate Bundles for Your Roof
Our roof shingle calculator automatically selects the right shingles-per-bundle count based on your shingle type selection.
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