2x12 Actual Size
Find the actual thickness, width, and metric dimensions of a standard 2x12 lumber board.
2x12 Actual Dimensions
| Measurement | Actual Size |
|---|---|
| Nominal Size | 2 × 12 inches |
| Actual Thickness | 1.5 inches |
| Actual Width | 11.25 inches |
| Metric Size | 38 × 286 mm |
What Is the Actual Size of a 2x12?
A commonly sold dry 2x12 board has an actual finished size of approximately 1.5 inches thick × 11.25 inches wide.
The name 2x12 refers to the nominal size of the lumber rather than its final finished dimensions.
Why Is a 2x12 Not Actually 2 by 12 Inches?
Lumber is typically cut larger than its final dimensions and then dried and surfaced. Planing and finishing reduce the thickness and width, which is why a nominal 2x12 is commonly about 1.5 × 11.25 inches after finishing.
2x12 Size in Millimeters
The commonly referenced metric dimensions are approximately 38 × 286 mm.
Actual dimensions can vary depending on lumber grade, moisture condition, manufacturer, and product specifications.
Common Uses for 2x12 Lumber
2x12 boards are commonly used for floor joists, roof framing, stairs, beams, shelving, and other construction applications where a wide lumber board is needed.
Related Lumber Sizes
FAQ
How thick is a 2x12?
A commonly sold dry 2x12 is about 1.5 inches thick.
How wide is a 2x12?
A commonly sold dry 2x12 is about 11.25 inches wide.
What is a 2x12 in millimeters?
The commonly referenced metric size is approximately 38 × 286 mm.