Roofing (Clout) Nail

Nail size is determined by both length and gauge. Nail length is indicated by the letter “d,” which is a system of measurement that dates back to old England and originally represented the word “pennies.” Nails come in many lengths ranging from 2d all the way to 50d with corresponding lengths. While nails may vary between manufacturers, the most common types includes sizes from 2d  that is 2 inches to 50d that is 5 ½ inches. Nails must be of suitable strength, with a shank that is long enough to provide an appropriate attachment.

Roofing nails, sometimes called clout nails, have a short shank and a wide, flat, thin head. Roofing nails are used to fasten shingles, roofing felt, or sheet metal to wood. The shanks can be smooth or ringed for increased pull-out resistance.