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# What is the size of a 2×12 lumber?

What is the actual length of a 2x6x12?

Do they make a 2 by 14 board?

Why is lumber not actual size? The “nominal” cross-section dimensions of a piece of lumber, such as 2 X 4 or 1 X 6, are always somewhat larger than the actual, or dressed, dimensions. The reason is that dressed lumber has been surfaced or planed smooth on four sides (called S4S). The nominal measurement is made before the lumber is surfaced.

How wide does lumber come? Dimensional Lumber: Nominal Size vs. Actual Size
————————————————
Two-by-four or 2 x 4
Two-by-six or 2 x 6
Two-by-eight or 2 x 8
Two-by-ten or 2 x 10

## What is the size of a 2×12 lumber? – Additional Questions

### What is the actual size of a 2×12?

Nominal Size Actual Size
———— ———————————–
2 x 6 1 1/2 x 5 1/2 inches (38 x 140 mm)
2 x 8 1 1/2 x 7 1/4 inches (38 x 184 mm)
2 x 10 1 1/2 x 9 1/4 inches (38 x 235 mm)
2 x 12 1 1/2 x 11 1/4 inches (38 x 286 mm)

### Why are the actual dimensions of lumber different from the nominal dimensions?

The nominal shape of the lumber is the rough-sawn lumber and would have rough surface and irregular shape. Thus to produce smooth surface on lumber ¼ inch per side of the lumber is removed. Therefore, the actual dimension of lumber is different from the nominal dimensions.

### How wide are boards?

Nominal Thickness S1S S2S
—————– ———————- ——————-
4 (16/4) inches 3 13/16 inches (97 mm) 3 3/4 inches (95mm)

### What is the actual size of a 2×2?

Nominal Size Actual Size
———— ———————————-
2 x 2 1 1/2 x 1 1/2 inches (38 x 38 mm)
2 x 3 1 1/2 x 2 1/2 inches (38 x 64 mm)
2 x 4 1 1/2 x 3 1/2 inches (38 x 89 mm)
2 x 6 1 1/2 x 5 1/2 inches (38 x 140 mm)

### What is the actual size of a 2×10?

Nominal Size Actual Size
———— ———————————–
2 x 6 1 1/2 x 5 1/2 inches (38 x 140 mm)
2 x 8 1 1/2 x 7 1/4 inches (38 x 184 mm)
2 x 10 1 1/2 x 9 1/4 inches (38 x 235 mm)
2 x 12 1 1/2 x 11 1/4 inches (38 x 286 mm)

### Why is a 2×4 not 2 inches by 4 inches?

DIMENSIONAL LUMBER: In the past, when a timber was called a 2×4 [or “two-by-four”], it actually measured 2 inches by 4 inches. Because of this extra milling, a 2×4 no longer measures a full 2 inches by four inches. Instead, a 2×4 is really only 1 1/2″ by 3 1/2″. The same is true of pine.

### How are lumbers described and measured?

Lumber sized according to “Quarters” reflects the number of quarters of an inch thick the lumber is. So, a “4/4” board is four quarters, or 1 inch thick, an “8/4” board is eight quarters, or 2 inches thick, a “10/4” board is ten quarters, or 2.5 inches thick, etc.

### What is the widest 2x lumber?

2x Lumber
——— ————–
2×6 1-1/2 x 5-1/2
2×8 1-1/2 x 7-1/4
2×10 1-1/2 x 9-1/4
2×12 1-1/2 x 11-1/4

### What length do boards come in?

In Canada and the United States, the standard lengths of lumber are 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24 feet (1.8, 2.4, 3.0, 3.7, 4.3, 4.9, 5.5, 6.1, 6.7 and 7.3 m). For wall framing, precut “stud” lengths are available, and are commonly used.

### Why is lumber not true to size?

Maybe you’ve noticed that lumber sizes are often misleading. The “nominal” cross-section dimensions of a piece of lumber, such as 2 X 4 or 1 X 6, are always somewhat larger than the actual, or dressed, dimensions. The reason is that dressed lumber has been surfaced or planed smooth on four sides (called S4S).

### How wide is a 2×8 pressure treated board?

2x Lumber
———— ————-
Nominal Size Actual Size
2×4 1-1/2 x 3-1/2
2×6 1-1/2 x 5-1/2
2×8 1-1/2 x 7-1/4

### What is the actual size of a 2×4?

Nominal Size Actual Size
———— ———————————-
2 x 4 1 1/2 x 3 1/2 inches (38 x 89 mm)
2 x 6 1 1/2 x 5 1/2 inches (38 x 140 mm)
2 x 8 1 1/2 x 7 1/4 inches (38 x 184 mm)
2 x 10 1 1/2 x 9 1/4 inches (38 x 235 mm)

### What are standard timber sizes?

What are standard timber sizes?

### Is a 2×6 really 2×6?

In short, 2×6 are referred to as 2×6 because it’s easier to say and understood throughout the industry that we are only referring to its nominal dimensions vs its actual.

### What are the actual dimensions of a 2×12?

Nominal Size Actual Size
———— ———————————–
2 x 6 1 1/2 x 5 1/2 inches (38 x 140 mm)
2 x 8 1 1/2 x 7 1/4 inches (38 x 184 mm)
2 x 10 1 1/2 x 9 1/4 inches (38 x 235 mm)
2 x 12 1 1/2 x 11 1/4 inches (38 x 286 mm)