If you’re planning a roof replacement—or reviewing a roofing estimate—you might be wondering:
How many shingles are in a bundle?
When your home is being installed with CertainTeed architectural shingles (the system Barringer Brothers Roofing uses), the answer is simple:
👉 Most CertainTeed shingles require 3 bundles per roofing square
👉 One roofing square = 100 square feet
👉 So each bundle covers about 33 square feet
That means a typical home often needs 45–75 bundles, depending on roof size and complexity.
How Many CertainTeed Shingles Come in One Bundle?
Most homes we install in the Metro East use CertainTeed Landmark® architectural shingles, which are:
✔ thicker than basic 3-tab shingles
✔ longer-lasting
✔ wind-resistant
✔ designed for dimensional curb appeal
For Landmark shingles:
- About 21–26 shingles per bundle
- 3 bundles = 1 square
- 1 square = 100 sq ft of coverage
So when your estimate references 18 squares, that typically means:
54 bundles of shingles
before accessories like starter strip and ridge cap are added.
Why Roofing Estimates Include More Than Just Shingle Bundles
Homeowners sometimes multiply roof size by 3 bundles per square and expect that to be the final number—but professional estimates include additional materials for a complete CertainTeed roofing system.
These may include:
✔ starter shingles
✔ ridge cap shingles
✔ underlayment
✔ ice & water shield
✔ ventilation components
✔ flashing materials
This ensures your roof isn’t just replaced—it’s installed correctly as a full system for durability and warranty protection.
Example: How Many Bundles Does a Typical Illinois Roof Need?
Here’s a realistic estimate range using CertainTeed architectural shingles:
| Roof Size | Squares | Bundles |
|---|---|---|
| 1,500 sq ft | 15 | ~45 bundles |
| 2,000 sq ft | 20 | ~60 bundles |
| 2,500 sq ft | 25 | ~75 bundles |
Actual totals vary depending on:
- roof pitch
- valleys and dormers
- ridge length
- waste factor (usually 10–15%)
That’s why professional measurement always matters 📏
Why Barringer Brothers Roofing Uses CertainTeed Shingles
CertainTeed is one of the most trusted roofing manufacturers in North America—and there’s a reason we install it on homes across the Metro East.
Homeowners choose CertainTeed Landmark shingles because they:
✔ provide strong wind resistance
✔ offer excellent color depth and curb appeal
✔ hold up well in Illinois weather
✔ come with reliable manufacturer warranties
Using a consistent, high-quality shingle system also means our estimates stay accurate and predictable for homeowners.
How Many Bundles Will Your Roof Need?
Every roof is different—even homes with similar square footage can require different bundle counts depending on layout and slope.
If you’re in:
Belleville • Swansea • O’Fallon • Shiloh • Edwardsville • Collinsville • or nearby communities
Barringer Brothers Roofing can measure your roof and provide a clear material breakdown before installation begins.
📞 Call (618) 703-3036
or submit a request through our contact form to schedule your estimate today.
