3 Bundles per square. Approx. 64 shingles per square. Each shingle 13-1/4"" x 39-3/8". Lifetime Limited Warranty. (Formerly Timberline Prestique 30) . To estimate the quantity of roof shingles per job: take the square feet to cover, add 10% and divide by 100 for the number of squares.Estimate 2 lbs. of nails per square.
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