Shingles for a 2,700 sq ft roof

90 bundles of shingles

for 2,700 sq ft of roof (27 squares) with 10% waste, at 3 bundles per square.

Materials for a 2,700 sq ft roof

Squares27
Bundles, gable roof (10% waste)90
Bundles, hip roof or valleys (15% waste)94
Synthetic underlayment (1,000 sq ft rolls)3
#15 felt (400 sq ft rolls)7
Roofing nailsabout 68 lb

If 2,700 sq ft is the footprint, not the roof

Measured flat from above, a footprint of 2,700 sq ft makes a bigger roof once you account for the slope:

PitchRoof areaSquaresBundles
4/122,846 sq ft28.594
6/123,019 sq ft30.2100
8/123,245 sq ft32.4108
10/123,515 sq ft35.1116
12/123,818 sq ft38.2127

Start from your house footprint instead

Shingles needed

90 bundles

2,700 sq ft of roof (27 squares) at 6/12, plus 10% waste.

Roof area2,700 sq ft
Squares27 (order 29.7)
Bundles (3 per square)90 (about $3,600)
Synthetic underlayment3 rolls of 1,000 sq ft
#15 felt7 rolls of 400 sq ft
Roofing nailsabout 68 lb

Other roof sizes

Questions

How many bundles of shingles for a 2,700 sq ft roof?
90 bundles: 27 squares plus 10% waste, at 3 bundles per square. Allow 94 for a hip roof or one with valleys.
How many squares is a 2,700 sq ft roof?
27 squares (a square is 100 sq ft of roof).
How much does it cost to shingle a 2,700 sq ft roof?
Shingles alone run about $3,600 at $40 a bundle. A full asphalt shingle replacement typically costs $4 to $8 per sq ft installed: $10,800 to $21,600.
My house is 2,700 sq ft. How big is the roof?
Bigger than the house. For a one-story 2,700 sq ft house with a 6/12 roof and 1 ft overhangs, the roof is roughly 3,380 sq ft. Two-story homes have about half the roof area for the same floor space.

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