Question: how many square feet does a box of roofing nails cover?
Answer: This amounts to an average of 320 nails per square, or 100 square feet. In high-wind areas, you need five nails per shingle, or 480 nails per square. One-and-a-half-inch roofing nails typically have a large, 11-gauge shank and an oversize, 7/16-inch flat head.