Shingles for a 1,100 sq ft roof

37 bundles of shingles

for 1,100 sq ft of roof (11 squares) with 10% waste, at 3 bundles per square.

Materials for a 1,100 sq ft roof

Squares11
Bundles, gable roof (10% waste)37
Bundles, hip roof or valleys (15% waste)38
Synthetic underlayment (1,000 sq ft rolls)2
#15 felt (400 sq ft rolls)3
Roofing nailsabout 28 lb

If 1,100 sq ft is the footprint, not the roof

Measured flat from above, a footprint of 1,100 sq ft makes a bigger roof once you account for the slope:

PitchRoof areaSquaresBundles
4/121,160 sq ft11.639
6/121,230 sq ft12.341
8/121,322 sq ft13.244
10/121,432 sq ft14.348
12/121,556 sq ft15.652

Start from your house footprint instead

Shingles needed

37 bundles

1,100 sq ft of roof (11 squares) at 6/12, plus 10% waste.

Roof area1,100 sq ft
Squares11 (order 12.1)
Bundles (3 per square)37 (about $1,480)
Synthetic underlayment2 rolls of 1,000 sq ft
#15 felt3 rolls of 400 sq ft
Roofing nailsabout 28 lb

Other roof sizes

Questions

How many bundles of shingles for a 1,100 sq ft roof?
37 bundles: 11 squares plus 10% waste, at 3 bundles per square. Allow 38 for a hip roof or one with valleys.
How many squares is a 1,100 sq ft roof?
11 squares (a square is 100 sq ft of roof).
How much does it cost to shingle a 1,100 sq ft roof?
Shingles alone run about $1,480 at $40 a bundle. A full asphalt shingle replacement typically costs $4 to $8 per sq ft installed: $4,400 to $8,800.
My house is 1,100 sq ft. How big is the roof?
Bigger than the house. For a one-story 1,100 sq ft house with a 6/12 roof and 1 ft overhangs, the roof is roughly 1,380 sq ft. Two-story homes have about half the roof area for the same floor space.

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