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Nominal Lumber Size Chart

Nominal Lumber Size Chart - Web the nominal size is how we refer to the lumber, for example, a “2 x 4”. Actual size will be smaller than listed nominal size do to loss of material when run through planer. 1x4 and 1x6 boards lose 1/4 inch in thickness and 1/2 inch in width before leaving the mill. That is why the actual size is always smaller than the nominal lumber size we have known to call them. Refers to the name of the lumber size before planing (ie: Refers to the actual dimensions of the lumber after planing and surfacing the lumber. Web nominal lumber sizes come in a range, each suited for specific applications in construction and woodworking. We’ll explore some common sizes and their typical uses: Web the nominal measurements are a board's size before it has been planed smooth (surfaced) on all four sides. Web the numbers given for the size of a piece of lumber when you buy it at the store are nominal lumber sizes or measurements.

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The Actual Size Chart, On The Other Hand, Is A Measurement That Takes Into Account The Thickness Of The Lumber, So.

The workhorse of framing, used for walls, studs, and rafters. The actual measurements are the final size of your piece of lumber. Nominal sizes originated to indicate the size of the log the board was rough sawn from before additional processing. With an explanation of why there's a difference.

This Number Indicates The Size The Wood Was Originally Cut To.

The nominal dimensions are the size of the board before it is ran through the planer, squared to size and kiln dried. If you’re stuck without a tape measure or reference table, you can also use a simple rule of thumb to determine the actual size of dimensional lumber. That is why the actual size is always smaller than the nominal lumber size we have known to call them. Web the table below provides some common north american lumber nominal sizes and their equivalent actual size.

Why Are Actual Lumber Dimensions Different?

That means a 1 x 4 board is actually 3/4 inches by 3 1/2 inches. The surface of these boards are rough and full of splinters and saw marks can usually be seen. Nominal size lumber has a given name, but this is only a nickname for the width of the board. Web nominal size is the size of a piece of lumber before it’s been smoothed.

Web Nominal Vs Actual Lumber.

Notice that 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. These approximate dimensions are larger than the actual measurements of the boards after drying and planing during manufacturing. Actual dimensions of material given in quarters of an inch, usually rough lumber sold directly by mill. Web the nominal measurements are a board's size before it has been planed smooth (surfaced) on all four sides.

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