How many bundles of shingles for a 12×16 shed?
Quick Answer
A 12×16 shed with a 4:12 gable roof needs approximately 8–10 bundles of shingles total, including field shingles, starter strip, and ridge cap. The roof area is about 275 sq ft (both sides), adding 15% waste brings it to 316 sq ft — about 9.5 bundles. Round up to 10.
Quick Reference Table
| Roof pitch | Bundles (12×16 shed) |
|---|---|
| 3:12 gable | 7–8 bundles total |
| 4:12 gable | 9–10 bundles total |
| 6:12 gable | 10–12 bundles total |
| 8:12 gable | 12–14 bundles total |
How to Calculate It Yourself
- 1
One roof face at 4:12: rake = √(6² + 16²) = 17.09 ft. Area = 12 × 17.09 = 205 sq ft.
- 2
Wait — for a 12×16 shed the ridge runs 16 ft, each side is 12/2 = 6 ft wide. Rake = √(6² + 16²)? No: rake = √(run² + rise²) where run = 6 ft, rise = 6×(4/12) = 2 ft. Rake = √(36+4) = 6.32 ft. One face = 16 × 6.32 = 101 sq ft.
- 3
Two faces: 202 sq ft. Add 15% waste: 232 sq ft ÷ 33 = 7 bundles field shingles.
- 4
Add 1 bundle starter + 1 bundle ridge cap (16 lin ft ÷ 35 = under 1 bundle). Total: 9 bundles.
Pro Tip
Buying a 10-bundle minimum (a full pallet row) is often cheaper per bundle than buying individual bundles. Check with your lumber yard — at 10+ bundles you may qualify for a contractor discount.
Assumptions to Check
Before ordering materials, confirm the dimensions, product coverage, waste factor, and local installation requirements for your project. Manufacturer coverage tables and local code rules can change the final quantity, especially for structural work, exterior projects, and irregular layouts.
Need an exact number for your specific dimensions?
Use the Shingles Calculator →