Question: are there different size finishing nails?
Answer: Finishing nails vary in length from 1 inch to 4 inches (2.5 centimeter to 10 centimeters). The size of finish nails is also measured by "penny" units. The letter "d" is used to determine length. In this method, a 2d finishing nail is 1 inch (2.5 centimeters) long, and a 6d nail is 2 inches (5 centimeters) long.