Liam Carter
Nails come in a variety of sizes, and the numbers on the packaging indicate the length and thickness of the nail. The length is usually given in millimetres, while the thickness is given in gauge.
| Characteristics | Values |
|---|---|
| Length | Designated by penny size, written with a number and the abbreviation 'd' for penny, e.g. 10d for a ten-penny nail |
| Diameter | Specified by gauge number (British Imperial Standard) |
| Gauge | Same as the wire diameter used in the manufacture of the nail |
| 'D' | Abbreviation for denarius, a Roman coin similar to a penny |
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What You'll Learn
- The 'd' in nail sizes stands for 'denarius', a Roman coin similar to a penny
- The penny number is the price of 120 nails of a given length in historic England
- Nails are sold by a number followed by 'd' and by length
- Larger nails sold for higher prices
- The penny size refers to the price for 100 or 120 nails in England in the 15th century
The 'd' in nail sizes stands for 'denarius', a Roman coin similar to a penny
The "d" in nail sizes stands for denarius, a Roman coin similar to a penny. The "d" is used to indicate the length of a nail, with a larger number indicating a longer nail. For example, 8d refers to an 8-penny nail, 16d to a 16-penny nail, and so on.
The use of "d" to indicate nail size has historical roots. In the late Middle Ages in England, the price of 120 nails was measured in pennies, with larger nails selling for higher prices. The penny number was the price of 120 nails of a given length. This pricing system eventually became a naming convention for nail sizes that has lasted for over 500 years.
There are different theories about the exact origin of the penny nail system. Some say that a hundred 3-1/2 inch nails would have cost 16 pennies and thus became known as 16-penny nails. Others suggest that the number and the "d" indicate that one 16d (3-1/2 inch) hand-forged nail cost 16 pennies.
Today, the penny nail system is still used, particularly by older, highly experienced professionals or craftspeople. Younger professionals or hobbyists may be less familiar with the system and may prefer to use the more straightforward length designation when purchasing nails.
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The penny number is the price of 120 nails of a given length in historic England
Today, the penny system is still used to indicate nail length, with a larger number indicating a longer nail. Nails under 1+1⁄4 inch, often called brads, are sold mostly in small packages with only a length designation or with length and wire gauge designations.
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Nails are sold by a number followed by 'd' and by length
The penny number is the price of 120 nails of a given length in historic England. In the 1400s, the price of 120 nails was measured in pennies, or "pence". Larger nails sold for higher prices. This naming convention has lasted for more than 500 years.
In the United States, the length of a nail is designated by its penny size, written with a number and the abbreviation 'd' for penny. A larger number indicates a longer nail. Nails under 1+1⁄4 inch, often called brads, are sold mostly in small packages with only a length designation or with length and wire gauge designations.
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Larger nails sold for higher prices
Nails are sold by a number followed by a 'd' and by length. The 'd' stands for penny, so 8d refers to an 8-penny nail, 16d to a 16-penny nail, and so on. The 'd' goes back to the time when the Romans occupied England, and the 'd' is associated with a Roman coin called the denarius, which was also the name for an English penny.
Penny sizes refer to the price for a hundred or long hundred (120) nails in England in the 15th century. The larger the nail, the higher the cost per long hundred. For example, some say that a hundred 3-1/2 inch nails would have cost 16 pennies and thus became known as 16-penny nails. This is why larger nails are sold for higher prices.
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The penny size refers to the price for 100 or 120 nails in England in the 15th century
The penny size of a nail refers to the price of 100 or 120 nails in England in the 15th century. The larger the nail, the higher the cost per long hundred. The "d" in the penny size stands for penny, which is derived from the Roman coin, the denarius, which was also the name for an English penny. The penny number is simply the price of 120 nails of a given length in historic England. For example, 100 3-1/2 inch nails would have cost 16 pennies and thus became known as 16-penny nails. This system of pricing became a naming convention that has lasted for more than 500 years.
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Frequently asked questions
The numbers refer to the length of the nail.
The 'd' stands for 'penny'.
In the 1400s, the price of 120 nails was measured in pennies, or 'pence'. The penny number is the price of 120 nails of a given length in historic England.
A larger number indicates a longer nail.
The gauge number refers to the diameter of the nail.
