Shingle calculator

How Many Bundles of Shingles for 2,500 sq ft?

2,500 sq ft of roof surface is 25 roofing squares. With 10% waste and standard 3-bundle-per-square shingles you need 83 bundles. If 2,500 sq ft is the house footprint rather than the roof, multiply by the pitch factor first: at a 6/12 pitch that becomes 93 bundles.

Roofing squares25
Bundles (10% waste)83
Bundles (15% waste)87
4-bundle shingles110
Nails (4 per shingle)8,801

Bundles for 2,500 sq ft of roof by waste factor

WasteSquares3 bundles / square4 bundles / square
5% (simple gable)26.379105
10% (typical)27.583110
15% (hips & valleys)28.787115
20% (complex, cut-up)3090120

If 2,500 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:

PitchRoof surfaceSquares (+10%)Bundles
3/122,577 sq ft28.386
4/122,635 sq ft2987
5/122,708 sq ft29.890
6/122,795 sq ft30.793
7/122,894 sq ft31.896
8/123,005 sq ft33.1100
9/123,125 sq ft34.4104
10/123,254 sq ft35.8108
12/123,536 sq ft38.9117

3 bundles per square, 10% waste. Don't know your pitch? Measure it with the Pitch Gauge.

Shingle cost for 2,500 sq ft

Shingle typeMaterial per squareTotal for 2,500 sq ft (+10%)
3-tab shingles$80–$120$2,200–$3,300
Architectural shingles$100–$160$2,750–$4,400
Premium shingles$160–$250$4,400–$6,875

Shingles only. Underlayment, flashing, ridge cap, disposal and labour are extra.

Nails and underlayment

UnderlaymentTypical roll coverageRolls (+10% laps)
Synthetic underlayment1,000 sq ft3
#15 felt400 sq ft7
#30 felt200 sq ft14

Nails: about 8,801 with a standard 4-nail pattern, or 13,201 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 2,500 sq ft?

For 2,500 sq ft of roof surface you need 83 bundles of standard shingles (3 bundles per square) including 10% waste, or 87 bundles with 15% waste for a roof with hips and valleys. Heavier shingles packed 4 bundles per square need 110 bundles.

How many squares is 2,500 sq ft?

A roofing square is 100 sq ft, so 2,500 sq ft is 25 squares, or 27.5 squares once you add 10% for waste.

Is 2,500 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 2,500 sq ft is your footprint, multiply it by your pitch factor: at 6/12 the roof is 2,795 sq ft and needs 93 bundles.

How much do shingles for 2,500 sq ft cost?

At typical material prices, shingles for 2,500 sq ft of roof (with 10% waste) cost about $2,200–$3,300 for 3-tab shingles, $2,750–$4,400 for architectural shingles, $4,400–$6,875 for premium shingles. That is materials only; installation usually costs more than the shingles.