Shingles for a 1,800 sq ft roof

60 bundles of shingles

for 1,800 sq ft of roof (18 squares) with 10% waste, at 3 bundles per square.

Materials for a 1,800 sq ft roof

Squares18
Bundles, gable roof (10% waste)60
Bundles, hip roof or valleys (15% waste)63
Synthetic underlayment (1,000 sq ft rolls)2
#15 felt (400 sq ft rolls)5
Roofing nailsabout 46 lb

If 1,800 sq ft is the footprint, not the roof

Measured flat from above, a footprint of 1,800 sq ft makes a bigger roof once you account for the slope:

PitchRoof areaSquaresBundles
4/121,897 sq ft1963
6/122,012 sq ft20.167
8/122,163 sq ft21.672
10/122,343 sq ft23.478
12/122,546 sq ft25.585

Start from your house footprint instead

Shingles needed

60 bundles

1,800 sq ft of roof (18 squares) at 6/12, plus 10% waste.

Roof area1,800 sq ft
Squares18 (order 19.8)
Bundles (3 per square)60 (about $2,400)
Synthetic underlayment2 rolls of 1,000 sq ft
#15 felt5 rolls of 400 sq ft
Roofing nailsabout 46 lb

Other roof sizes

Questions

How many bundles of shingles for a 1,800 sq ft roof?
60 bundles: 18 squares plus 10% waste, at 3 bundles per square. Allow 63 for a hip roof or one with valleys.
How many squares is a 1,800 sq ft roof?
18 squares (a square is 100 sq ft of roof).
How much does it cost to shingle a 1,800 sq ft roof?
Shingles alone run about $2,400 at $40 a bundle. A full asphalt shingle replacement typically costs $4 to $8 per sq ft installed: $7,200 to $14,400.
My house is 1,800 sq ft. How big is the roof?
Bigger than the house. For a one-story 1,800 sq ft house with a 6/12 roof and 1 ft overhangs, the roof is roughly 2,250 sq ft. Two-story homes have about half the roof area for the same floor space.

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