Nail Penny Sizes: What 8d, 10d & 16d Actually Mean (+ Chart)
The d stands for penny — a 16d nail is 3-1/2 in long and 0.162 in thick, the default framing nail. Higher penny, longer and thicker nail. These six sizes cover nearly all home construction.
| Size | Length | Diameter | Used for |
|---|---|---|---|
| 4d | 1-1/2 in | 0.098 in | Trim, light boxes, finish work |
| 6d | 2 in | 0.113 in | Finish carpentry, paneling, light framing |
| 8d | 2-1/2 in | 0.131 in | Sheathing, subfloor, stud nailing |
| 10d | 3 in | 0.148 in | Framing, sinkers, deck framing |
| 16d | 3-1/2 in | 0.162 in | Wall framing, joists, general construction |
| 20d | 4 in | 0.192 in | Posts, beams, heavy framing |
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