# What is the size of a 2x12 lumber?

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Nominal vs. Actual Measurements of Dimension Lumber
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)

Then, what is the actual size of a 2x12?

Lumber Dimensions

Nominal Actual Actual - Metric
2" x 8" 1-1/2" x 7-1/4" 38 x 184 mm
2" x 10" 1-1/2" x 9-1/4" 38 x 235 mm
2" x 12" 1-1/2" x 11-1/4" 38 x 286 mm
3" x 6" 2-1/2" x 5-1/2" 64 x 140 mm

Also, is a 4x4 really 4 inches? Believe it or not, there actually is some rhyme and reason for why the actual measurements of dimensional lumber don't match their names.

Actual Dimensions and Nominal Dimensions.

Nominal Measurement Actual (inches) Actual (mm)
2 x 12 1-1/2 x 11-1/4 38 x 286
4 x 4 3-1/2 x 3-1/2 89 x 89
4 x 6 3-1/2 x 5-1/2 89 x 140

Simply so, what are the standard sizes of lumber?

In Canada and the United States, the standard lengths of lumber are 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24 feet (1.83, 2.44, 3.05, 3.66, 4.27, 4.88, 5.49, 6.10, 6.71 and 7.32 meters). For wall framing, "stud" or "precut" sizes are available, and are commonly used.

What is the actual size of a 1x4?

1x Board Sizes That means a 1 x 4 board is actually 3/4 inches by 3 1/2 inches.

### 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 big is a 1x6?

A 1x6, for example, actually measures 3/4" x 5 1/2".

### What size does plywood come in?

The most common size for plywood sheets is 4 x 8 feet, followed by 5 x 5 feet.

### How tall is a 2x10?

Finished Lumber Sizes
NOMINAL SIZE ACTUAL SIZE
2x4 1 1/2" x 3 1/2"
2x6 1 1/2" x 5 1/2"
2x8 1 1/2" x 7 1/4"
2x10 1 1/2" x 9 1/4"

### How many board feet are in a 2x4x10?

A board foot is actually a measure of volume. By definition, a board foot is one square foot, one inch thick. The most common mistake made in calculating board footage is forgetting to multiply by the thickness. Example 1: A 4/4 board 8 inches wide and 8 feet long has 5.33 bd.

### How far can a 2x6 span?

In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2x8 up to 12 feet; 2x10 to 15 feet and 2x12 to 18 feet. The larger the deck, the larger the joists.

### What is actual size of 2x6?

In North America, the 2x6 size is actually referring to the lumber's “nominal” dimension. A 2x6's real or true dimension is 1.5″ x 5.5″ - within the industry it is referred to as its “actualsize. The nominal size is used when discussing lumber nearly 100% of the time! Same for 1x4, 2x4 and 4x4 etc.

### How much weight will a 4x4 hold?

What I figured if the weight is distributed evenly is that each 4x4 post is supporting a max of about 420 pounds.

### How wide is a 4x4 post?

The lumber industry defines standard wood post sizes as 4x4 or 6x6. The outside dimensions of the standard 4x4 measure 3-1/2" x 3-1/2", and the outside dimensions of the standard 6x6 measure 5-1/2" x 5-1/2".

### What is appearance grade lumber?

Appearance Lumber. The lumber grades in this category are intended for applications where strength is not the primary consideration. The highest grades of Appearance lumber are seldom gradestamped, unless on the back or ends, as the grade stamp would deface the product.

### What is the widest piece of lumber?

Lumber that's 5 inches or thicker with a width more than 2 inches greater than the thickness. Graded as Select Structural, 1, or 2, with Select Structural being the strongest.

Construction.
Nominal Width Anywhere on Wide Face Unsound or Loose Knots & Holes
2″ 3/4” 5/8”
3″ 1-1/4” 3/4”
4″ 1-1/2” 1”

### Why is lumber a half inch short?

Back in the olden days of cutting trees into framing lumber, a 2×4 did actually measure more or less two inches by four inches. High production builders demanded smooth surfaced lumber to work with, rather than the rough sawn lumber primitive mills had been cranking out.

### What comes first length or width or height?

The Graphics' industry standard is width by height (width x height). Meaning that when you write your measurements, you write them from your point of view, beginning with the width. That's important. We always measure the length of space.

### Why is a 2 by 4 smaller?

Two-by-fours are actually 1.5-by-3.5s. The same is true for most other wood cuts, which are all systematically smaller than their names would suggest. Here's why. And moist wood—called "green lumber"—is prone to bending and warping.

### What is the standard size for deck boards?

Width: Six-inch wide boards are ideal in most cases. Four inch wide material takes longer to install, creates more gaps and requires a lot more fasteners—but you can use it. Eight inch wide boards, because of their greater width, have more of a tendency to crack and cup; avoid using them.

### What is common lumber?

What is 2 Common Lumber? The National Hardwood Lumber Association (NHLA) sets the standards for hardwood lumber grades, which indicate the amount of clear, defect-free wood in a board. Lumber is graded not by its general appearance, but by the actual measurements of its clear sections and its specific defects.

40x40 mm