Question: what are common nail sizes?
Answer: 2d – 1-inch., 3d – 1-1/4-inches., 4d – 1-1/2-inches., 5d – 1-3/4-inches., 6d – 2-inches., 8d – 2-1/2-inches., 10d – 3-inches., 12d – 3-1/4-inches.