Commercial Lumber Sizes Chart Table. The following data is standard reference and size data for commercially available lumber within the USA. All data is in imperial units (Inches). Mechanical Tolerance Variations of Lumber: Per. Voluntary Product Standard PS 20-05, American Softwood Lumber Standard.

Actual lumber refers to the true size of the lumber after it has been seasoned (dried to reduce shrinkage) and planed smooth (or surfaced) to create a uniform product. This is much easier for carpenters to work with and more economical to transport. This is also often referred to as dressed lumber.

The table below provides some common North American Lumber nominal sizes and their equivalent actual size. For example, 1x8 actual size is 3/4" x 7-1/4", and 2 x 12 actual size is 1-1/2" x 11-1/4", and 2x 10 actual size is 1-1/2" x 9-1/4".

Aug 27, 2020 · Details regarding the dressed sizes of various spe-cies of lumber in the grading rules of the agencies which formulate and maintain such rules. The dressed sizes in Table 1A conform to the sizes set forth in U.S. Depart-ment of Commerce Voluntary Product Standard PS 20-10 (American Softwood Lumber Standard).

Mar 18, 2023 · Dimensional lumber is cut to a specific length, width, and depth. However, there is a difference between the nominal size (what the lumber is referred to) and the actual size. The tables below provide both the nominal and actual lumber dimensions for many common North American lumber sizes.

Apr 13, 2015 · The actual, or “dressed” dimensions when finished are always slightly smaller. So the “nominal” name 2 x 4 is used to easily reference a commonly used piece of lumber, but the actual or “dressed” dimension of a 2 x 4 is 1 1/2″ x 3 1/2″. Below is a chart with the most common examples in the industry:

Jun 29, 2020 · If you can stop someone in the store to help explain the inconsistency, they'll start throwing around a few words like "nominal sizes" and "actual sizes" and "softwood lumber" and "hardwood lumber."

Commercial softwood lumber dimension chart - nominal and actual sizes. Softwood Lumber - Grading Rough lumber, surfaced lumber (dressed), worked lumber, shop and factory lumber and yard lumber.

Jan 9, 2023 · This standard lists the minimum dressed or nominal sizes of nonstructural and structural lumber. Thus, you can find softwood lumber in sizes ranging from 2×4 to 2×12. However, as mentioned above, the nominal standard sizes are larger than the actual sizes of dimension lumber.

Jun 1, 2022 · This standard lists the nominal and minimum dressed sizes for all categories of structural and nonstructural lumber. The most commonly available dimension lumber sizes are 2×4 through 2×12. The 2×4’s and 2×6’s are ½” less than nominal in width and the 2×8, 2×10’s and 2×12’s are ¾ of an inch less than nominal.