how many nailes do i need for 25 bundels of shingles

Hi Art. Shingle manufacturers recommend using four nails per shingle in the main part of the roof and five nails per shingle in the first row. 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. Moreover, they are hot galvanized to help them withstand the rain and sun on the roof. Approximately 140 of these nails make a pound, so you need about 2 1/4 pounds of them to install a square of shingles in normal conditions and about 3 1/2 pounds in windy conditions. Thank you for choosing Grip-Rite.