
Nominal Size | Actual Size |
---|---|
1 x 2 | 3/4 x 1 1/2 inches (19 x 38 mm) |
1 x 3 | 3/4 x 2 1/2 inches (19 x 64 mm) |
1 x 4 | 3/4 x 3 1/2 inches (19 x 89 mm) |
1 x 5 | 3/4 x 4 1/2 inches (19 x 114 mm) |
What is the real size of a 1x4?
That means a 1 x 4 board is actually 3/4 inches by 3 1/2 inches. The larger 1x boards (1x8, 1x10, ...
What is the actual size of a board?
Nominal vs. Actual Board Sizes (in inches) Nominal Size: Actual Size: 1 x 1 3/4 x 3/4 1 x 2 3/4 x 1 1/2 1 x 3
What is the true size of lumber?
Standard dimensions for construction lumber include thicknesses of "one-by" and "two-by" and widths from two inches to 12 inches. For example, there are two-by-fours, one-by-sixes and other combinations of those numbers. In actuality, a one-by board measures only about 3/4 inch thick, and a two-by board is only about 1 1/2 inches thick.
What is the actual size of dimensional lumber?
Dimensional Lumber. Nominal Size. Actual Size. 1×2. 3/4" × 1-1/2". 1×3. 3/4" × 2-1/2". ...

How wide is a 1 x4 board?
1x Board Sizes That means a 1 x 4 board is actually 3/4 inches by 3 1/2 inches. The larger 1x boards (1x8, 1x10, etc.) lose 3/4 inch in width. That means a 1x10 is actually 3/4 inch in thickness by 9 1/4 inches.
What are standard board widths?
Originally, a 2×4 was cut as a rough green piece that was close to a full 2 inches thick and 4 inches wide. However, after drying and surfacing, the boards became smaller, approaching the now standard 2×4 dimensions of 1 ½ x 3 ½ inches.
How wide is a 1x6 board?
A 1x6, for example, actually measures 3/4" x 5 1/2". In this case, the planing is necessary for a smoother surface, so that the board could be used for interior applications.
What widths do 1 inch boards come in?
North American Standard 1-by LumberNOMINAL SIZE (INCHES)ACTUAL SIZE (INCHES)ACTUAL SIZE (MM)1 x 43/4 x 3 1/219 x 891 x 63/4 x 5 1/219 x 1401 x 83/4 x 7 1/419 x 1841 x 103/4 x 9 1/419 x 2353 more rows•Oct 31, 2021
What widths does wood come in?
Dimensional LumberNominal SizeActual Size2×121-1/2" × 11-1/4"4×43-1/2" × 3-1/2"4×63-1/2" × 5-1/2"6×65-1/2" × 5-1/2"13 more rows
How wide is a 2 by 4?
3½ inches wideA piece of surfaced (sanded smooth) 2x4 lumber actually measures 1½ inches thick and 3½ inches wide. In rough-cut condition, a 2x4 is slightly less than 2 inches thick and approximately 4 inches wide.
What is the actual width of a deck board?
The most common or standard deck board width is 6-inch wide planks based on square-foot coverage, labor, and material cost.
How big is a 5 1/2 x 5 12 inch board?
5 1/2 x 5 12 inches (140 x 140 mm) Shrinkage is more pronounced laterally (across the grain) than it is longitudinally (with the grain), so a board sold as an 8-foot 2 x 4 is generally very close to the full 8 feet in length.
How thick is 5/4 board?
Each quarter refers to 1/4 inch of thickness, meaning that a 5/4 board is roughly 1 1/4 inches thick. If your project calls for a piece that is exactly 1 inch thick, you'll want to purchase a 5/4 board and mill it down to the proper size using a jointer/planer.
How many cubic inches is a board foot?
Instead, suppliers generally sell hardwoods in a unit of volume known as the board foot. One board foot is equal to 144 cubic inches of wood. In other words, a board that is 1 inch thick, and 12 inches wide and long contains one board foot of hardwood lumber.
What is dimension lumber?
The term dimension lumber is used with softwood species (such as pine or fir) that are used in the building trades for framing and other carpentry uses. The reasons why the nominal dimension of this lumber (what the lumber is called) is larger than the actual dimensions involves historical practices in the lumber industry.
What is the grade of plywood?
Plywood is graded so that each face receives a grade of A, B, C, or D , with A representing the smoothest sanded finish. For example, AA plywood has a furniture-grade finish on both sides, while BC plywood will be graded B on one side and C on the other. Read More.
Softwood Lumber Dimensions
Softwood lumber is generally used for framing walls and floors. In the United States, softwood lumber is governed by the National Institute of Standards American Softwood Lumber Standard (PS 20).
Softwood Lumber Lengths
Softwood lumber comes in a number of standard lengths as listed in the table below.
Hardwood Lumber Dimensions
Hardwood lumber is sized based on how many sides are surfaced. Surfaced refers to a finishing process that smooths the lumber to remove all saw marks.
Glue Laminated Lumber Dimensions
The following table comes from the American Institute of Timber Construction's Standard Specification for Structural Glued Laminated Timber of Hardwood Species publication.
How big is a 2x4?
A 2x4 is actually 3-½ inches by 1-½ inches. Many of you know this, but why is this a thing? You don’t go to Subway and pay for a $5-footlong expecting to get 11 inches (although many of you will argue this is the case). And it’s not just a 2x4: A 1x4 is actually ¾ inches by 3-½ inches; a 4x4 is actually 3-½ inches by 3-½ inches.
What is a 2x4 lumber?
The most well-known piece of lumber is the 2x4, pronounced two-by-four. It’s mostly used in the framing of houses but you’ll also see it in just about any other construction or DIY project. But there is a caveat will calling a 2x4 a 2x4: It’s not really two inches by four inches as its name implies. A 2x4 is actually 3-½ inches by 1-½ inches.
