Actual Size of Dimensional Lumber Calculator
Calculate Actual Lumber Dimensions
Understanding Dimensional Lumber Sizes
When purchasing lumber, it's important to understand that the nominal size (like 2x4) differs from the actual dimensions. This difference exists due to the milling process and historical practices.
Common Lumber Sizes Reference Table
| Nominal Size | Actual Size (inches) | Metric (mm) |
|---|---|---|
| 2×4 | 1½″ × 3½″ | 38 × 89 |
| 2×6 | 1½″ × 5½″ | 38 × 140 |
| 2×8 | 1½″ × 7¼″ | 38 × 184 |