A roofing square covers 100 square feet of roof area. Generally, it takes about 3 bundles of shingles to cover one roofing square for standard asphalt shingles, including 3-tab and many architectural shingles

Details:

• Standard 3-tab shingles: Usually 3 bundles per square, with about 26 to 29 shingles per bundle

• Architectural shingles: Typically require 3 bundles per square as well, but some thicker or luxury architectural shingles may need 4 bundles or more per square

• Luxury or specialty shingles: May require 4 to 6 bundles per square depending on the brand and style

Coverage per bundle:

• One bundle generally covers about 33 square feet of roof area regardless of shingle type

Summary:

Shingle Type| Bundles per Square (100 sq ft)| Shingles per Bundle| Coverage per Bundle (sq ft)
---|---|---|---
Standard 3-tab| 3| ~26-29| ~33
Architectural| 3 (sometimes 4 for thick types)| ~20-22| ~33
Luxury/Specialty| 4 to 6| Varies| ~33

So, for most common roofing jobs, 3 bundles of shingles make up one roofing square (100 square feet), but always check the specific shingle packaging or technical data for exact requirements, especially for premium shingles