Shingle Bundle Count Calculator

Bundles = roof area / coverage per bundle (33⅓ ft² for 3-tab).

Inputs

3-tab: 33⅓; architectural: 25; premium: 20.

Result

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How to use this calculator

  • Enter roof area.
  • Enter coverage per bundle (from manufacturer spec).
  • Read bundle count.

About this calculator

Variant of roofing-square-count for users who think in bundles directly. Manufacturers print coverage per bundle on the wrapper — typically 33⅓ ft² for 3-tab, 25 ft² for architectural, less for premium / heavy-weight.

Frequently asked

Where do I find coverage per bundle?+
On the bundle wrapper at the supplier. Most are stamped clearly.
How is this different from roofing-square-count?+
roofing-square-count uses preset bundles-per-square ratios. This calculator takes coverage directly per bundle — more precise if you have the manufacturer spec.
Why is architectural less per bundle?+
Heavier, thicker shingles. Same bundle weight, less square footage covered.
Bundle weight?+
3-tab: ~60-70 lb. Architectural: ~75-85 lb. Pallet of 21 bundles weighs 1500-1800 lb.
How many shingles per bundle?+
3-tab: 26 shingles. Architectural: 21. Premium: varies — count is on the wrapper.

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