How Long Is an 8D Box Nail

Nail Measurement Guide: 2d to 16d A 6d nail is 2 inches long and an 8d nail is 2.5 inches long. 12d nails are 3.25 inches long and 16d nails (16 penny) are 3.5 inches long.

What does 8 D mean in nails?

The “d” stands for penny, so 8d refers to an 8-penny nail, 16d to a 16-penny nail and so on. … It was associated with nails when they were hand-forged, one at a time. Some say a hundred 3-1/2 inch nails would have cost 16 pennies and thus became known as 16-penny nails.

Are 6d or 8d nails bigger?

So, a 2d nail is 1 inch long. More common nail sizes: a 4d nail measures 1.5 inches, a 6d nail is 2 inches long, an 8d nail is 2.5 inches long, a 12d nail is 3.25 inches long, and 16d nails are 3.5 inches long.