

Of course, lengths are customized for each job. A wide range of depths are available, far too many to list here, so please contact your local manufacturer for more information on their offerings - in general depths start at 6" and go up to 30" and beyond. Standard widths are specified in the above publication, but can be customized as needed. What are the dimensions of the product Customer Reviews. The following table comes from the American Institute of Timber Construction's Standard Specification for Structural Glued Laminated Timber of Hardwood Species publication.ĪNSI/AITC A190.1-1992 allows for any width and depth of glue laminated timber. Actual Product Length (ft.) 12 ft: Actual Product Thickness (in.) 0.63 in. 1 x 4 3/4 thick x 3 1/2 wide (19 mm × 89 mm) 1 x 6 3/4 thick x 5 1/2 wide (19 mm × 140 mm) 1 x 8 3/4 thick x 7 3/4 wide (19 mm × 184 mm) Architects, contractors, and carpenters speak to wood dimensions as they are called, but actually do their work under. It is advisable to check with your contractor or lumber supplier before finalizing design details so you aren't surprised by what you receive. Less common wood sizes’ actual dimensions. However, in some cases, like the big-box hardware stores, the boards come in dimensional widths similar to softwood widths. In most cases, hardwood boards come in random widths to be ripped to size by the woodworker. For instance, hardwood trim that ends up being just over 1" thick (surfaced on 2 sides) is called a five-quarter (5/4) board. Actual lumber is sawn, planed, and smoothed, and it’s generally made ready for many applications.

Actual lumber sizes are pieces of lumber that are cut to standard sizes and refers to depth and width, but not length. In North America, hardwood lumber is usually specified using the quarter system, where a board is identified by its thickness in quarters of an inch. In reality, a 2×4 actual size measures 1-1/2 inches by 3-1/2 inches. Surfaced refers to a finishing process that smooths the lumber to remove all saw marks.

Hardwood lumber is sized based on how many sides are surfaced. Softwood lumber comes in a number of standard lengths as listed in the table below. North American Standard 8-by Lumber NOMINAL SIZE (INCHES) North American Standard 6-by Lumber NOMINAL SIZE (INCHES) Ipe Nominal Dimension Sizes, Ipe Net Sizes (Actual Size) Decimal, Ipe Net Sizes (Actual Size) Fraction 1 x 4 Ipe. North American Standard 4-by Lumber NOMINAL SIZE (INCHES) North American Standard 2-by Lumber NOMINAL SIZE (INCHES) Highly recommended sealing red knots with shellac based sealer prior to priming and painting to prevent bleed through. North American Standard 1-by Lumber NOMINAL SIZE (INCHES) In the United States, softwood lumber is governed by the National Institute of Standards American Softwood Lumber Standard (PS 20). Lowe's website, for example, seems to prefer the nominal sizing for their cedar boards.Softwood lumber is generally used for framing walls and floors. Actual thickness: 0.75ĮDIT 2: The more I search, the more I think this may just be an anomaly with Home Depot. Board Composition: Recycled HDPE Plastic + Mineral-Fill Additive. Colors: White, Gray, Putty, Cedar, Tan, Black, Redwood, Chocolate Brown, Green, Weathered Wood, Anchor Gray, Harbor Wood. All of their dimensioned lumber is labeled as '1x'. Actual Size: 0.75' x 5.9375' (1.9cm x 15cm) Weight: 0.1.30lbs/ft. Actual thickness: 0.75Īnother example: My local hardwood dealer has a good explanation of nominal sizing. Actual thickness: 0.75Ī cedar 3/4"x4 board. Actual thickness: 0.75Ī cherry S4S 1x4 board. End matched to eliminate the need to butt end joints on a stud. What I don't understand is why this one species of wood is different.Ī 1x4 KD common board. Reversible pattern - WP4 on one side, Nickel Gap Shiplap on the other. I already have a basic understanding of nominal vs. I'm sure there's a good reason for this, but would really like to know why!ĮDIT: To everyone posting comments. but with cedar wood, they use actual thickness. So, on virtually every other wood species, these stores use the nominal dimensions that are industry standard. The actual measurements are the final size. The nominal measurements are a board's size before it has been planed smooth (surfaced) on all 4 sides. actual lumber dimensions: Why a 2' × 4' is not always a 2' × 4' Lumber sizes are usually given in 'nominal' measurements. I'm initially not sure if this is what I want, but. 1X6X3 OAK BOARDModel PB19536 Common Dimension, 1 X 6 x 3 Actual Dimensions, 3/4 x 5-1/2 x 3 Species, Red Oak Material, Wood Brand, Waddell. Common Lumber Dimensions Common Lumber Dimensions Nominal vs. I go to where the cedar lumber is, and I see a whole bunch of 3/4x4, or 3/4x8 boards. I want to get ready for spring, and build some cedar planters for the outdoors. You go to buy a 1x4, for example, its not going to be 1" thick, its going to be 3/4" thick. Every lumber store I go into (Home Depot, Lowes, contractor building supply stores, and even the nicer hardwood stores) all carry '1x boards'.
