How Many Bundles of Shingles for 300 sq ft?
300 sq ft of roof surface is 3 roofing squares. With 10% waste and standard 3-bundle-per-square shingles you need 10 bundles. If 300 sq ft is the house footprint rather than the roof, multiply by the pitch factor first: at a 6/12 pitch that becomes 12 bundles.
Bundles for 300 sq ft of roof by waste factor
| Waste | Squares | 3 bundles / square | 4 bundles / square |
|---|---|---|---|
| 5% (simple gable) | 3.2 | 10 | 13 |
| 10% (typical) | 3.3 | 10 | 14 |
| 15% (hips & valleys) | 3.4 | 11 | 14 |
| 20% (complex, cut-up) | 3.6 | 11 | 15 |
If 300 sq ft is the house footprint
Shingles cover the sloped roof, not the floor plan. Multiply the footprint (including overhangs) by the pitch factor to get roof surface:
Shingle cost for 300 sq ft
| Shingle type | Material per square | Total for 300 sq ft (+10%) |
|---|---|---|
| 3-tab shingles | $80–$120 | $264–$396 |
| Architectural shingles | $100–$160 | $330–$528 |
| Premium shingles | $160–$250 | $528–$825 |
Shingles only. Underlayment, flashing, ridge cap, disposal and labour are extra.
Nails and underlayment
| Underlayment | Typical roll coverage | Rolls (+10% laps) |
|---|---|---|
| Synthetic underlayment | 1,000 sq ft | 1 |
| #15 felt | 400 sq ft | 1 |
| #30 felt | 200 sq ft | 2 |
Nails: about 1,056 with a standard 4-nail pattern, or 1,585 with a 6-nail high-wind pattern. Check roll labels: coverage varies by brand.
Frequently asked questions
How many bundles of shingles do I need for 300 sq ft?
For 300 sq ft of roof surface you need 10 bundles of standard shingles (3 bundles per square) including 10% waste, or 11 bundles with 15% waste for a roof with hips and valleys. Heavier shingles packed 4 bundles per square need 14 bundles.
How many squares is 300 sq ft?
A roofing square is 100 sq ft, so 300 sq ft is 3 squares, or 3.3 squares once you add 10% for waste.
Is 300 sq ft the house size or the roof size?
Shingles are ordered by roof surface, which is larger than the house footprint because of the slope and overhangs. If 300 sq ft is your footprint, multiply it by your pitch factor: at 6/12 the roof is 335 sq ft and needs 12 bundles.
How much do shingles for 300 sq ft cost?
At typical material prices, shingles for 300 sq ft of roof (with 10% waste) cost about $264–$396 for 3-tab shingles, $330–$528 for architectural shingles, $528–$825 for premium shingles. That is materials only; installation usually costs more than the shingles.