How much should a 1200 sq ft roof cost?

A 1200 square foot roof should cost typically 5,000 to 14,000 dollars total installed depending on materials, layers, and complexity. Roofing is measured in squares, where one square equals 100 square feet, so 1200 square feet is 12 squares of shingles, but you need to add 10 to 15 percent waste, so about 13 to 14 squares of materials. For materials only, basic three-tab shingles cost 80 to 100 dollars per square, so 1,200 dollars materials, architectural shingles like GAF Timberline HDZ or Owens Corning Duration cost 100 to 150 dollars per square, so 1,400 to 2,100 dollars materials. Installation labor including tear-off of old shingles, underlayment, flashing, ridge caps, and disposal typically adds 250 to 400 dollars per square, so 3,000 to 5,200 dollars labor for 12 squares. Total installed cost for a simple gable 1200 sq ft roof with architectural shingles is usually 5,500 to 8,500 dollars. If roof is steep, has multiple valleys, chimneys, skylights, or requires deck repair, cost rises to 9,000 to 14,000 dollars. High-end designer shingles can push cost to 15,000 dollars. Always get multiple quotes from licensed contractors.