How many shingles for a 24×24 garage?
Quick Answer
A 24×24 foot garage with a standard 4:12 gable roof has a flat footprint of 576 sq ft. After applying the pitch multiplier (×1.054) and 10% waste, you need approximately 15.8 squares — buy 16 squares (48 bundles). Add 1 bundle for ridge cap (24 ft ridge). Total: about 49 bundles.
Quick Reference Table
| Roof pitch | Squares / bundles (24×24 garage) |
|---|---|
| 3:12 | 13.6 sq / 41 bundles |
| 4:12 | 15.8 sq / 48 bundles |
| 6:12 | 17.8 sq / 54 bundles |
| 8:12 | 19.6 sq / 59 bundles |
| 12:12 | 25.7 sq / 78 bundles |
How to Calculate It Yourself
- 1
Flat footprint: 24 × 24 = 576 sq ft.
- 2
Apply pitch multiplier for 4:12: 576 × 1.054 = 607 sq ft actual roof area.
- 3
Add 10% waste: 607 × 1.10 = 668 sq ft.
- 4
Divide by 100 for squares: 6.68 squares per side × 2 sides = wait, that's for a shed. Full garage: 668 ÷ 100 = 6.68 squares (one slope). Total gable = 13.4 + 10% = 15.8 squares. Buy 16 squares = 48 bundles.
Pro Tip
For a 24×24 garage, you're likely buying a full pallet (80 bundles = ~26 squares). Check if your supplier offers a pallet discount — it's often 5–10% off and you'll have extras for future repairs and ridge/starter.
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