Compare common nail sizes including penny sizes, nail length, shank diameter, inches, millimeters, common nails, box nails, finish nails, casing nails, brad nails, and framing nail references.
8d common nail:
2.5 in long / about 0.131 in shank
10d common nail:
3 in long / about 0.148 in shank
16d common nail:
3.5 in long / about 0.162 in shank
6d finish nail:
2 in long / about 0.092 in shank
Nail size conversions are useful for framing, sheathing, decking, trim, finish carpentry, siding, fencing, roof sheathing, woodworking, repair work, and material planning.
Use this converter when comparing penny size, nail length, shank diameter, inches, millimeters, and nail type references.
Your result shows the selected nail size converted into length and shank diameter in inches, millimeters, and centimeters. It also shows a quantity reference for the number of nails entered.
Nail dimensions can vary by manufacturer, nail type, shank style, coating, head style, and intended use. Always verify requirements for structural, code-sensitive, engineered, or manufacturer-specified fastening work.
A 16d nail is a penny-size nail. A common 16d nail is typically about 3.5 inches long.
An 8d nail is typically about 2.5 inches long, though diameter varies by nail type.
Common nails usually have a thicker shank. Box nails are usually thinner, which can help reduce wood splitting.
No. Nail dimensions are common references and can vary by manufacturer, coating, shank type, and nail style.
No. This converter compares nail size dimensions. Framing nail requirements depend on building code, lumber type, connection, load, plans, and fastener schedule.