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Actual Vs Nominal Wood Sizes

Actual Vs Nominal Wood Sizes

Common Lumber Dimensions. Nominal vs. actual lumber dimensions: Why a 2" × 4" is not always a 2" × 4". Lumber sizes are usually given in "nominal" .
Don't be confused by 2×4 dimensions when you buy lumber or read plans. We show you the quick translation to “actual" vs. "nominal lumber sizes"
Lumber Dimensions. 2x4s are not actually 2. Here are the common sizes of lumber, and their actual sizes. Nominal, Actual, Actual – Metric. 1" x 2", 3/4" x 1-1/ 2" .
Lumber's nominal dimensions are larger than the actual standard dimensions of finished lumber.. Today, a "2×4" board starts out as something smaller than 2 inches by 4 inches and not specified by standards, and after drying and planing is reliably 1 1⁄2 by 3 1⁄2 inches (38 mm × 89 mm).
posted 5/31/2018 in Kreg Tool Tips: Wood Buying by Kreg Tool Company. or “ nominal” thickness and width, and a slightly smaller “actual” thickness and width.
Commercial softwood lumber dimension chart – nominal and actual sizes.

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