Learn the Reason why a 2×4 doesn’t Actually Measure 2 inches by 4 Inches
By Mark J. Donovan
In this video Mark Donovan of HomeAdditionPlus.com explains why a 2×4 doesn’t measure 2 inches by 4 inches.
Have you ever wondered why a 2×4 doesn’t measure 2 by 4? If so read on.
When a 2×4 is rough cut at a lumber yard it does measure 2 inches by 4 inches. This is known as the nominal dimension of the lumber. However, after the piece of lumber is cut, it is dried for a period of time and then planed to ensure that it is straight and smooth.
|This drying and planing process causes the rough dimensions to be reduced to the actual dimensions of 1.5 inches by 3.5 inches.
Thus, this is why the 2 by 4 that you buy at the home improvement center only measures 1.5 inches x 3.5 inches.
In regards to the length of the 2 by 4, the nominal and actual measurements are the same.
So, for example, when you purchase an eight foot 2×4, it actually does measure eight feet in length.
For more help on building a home addition, see HomeAdditionPlus.com’s Home Addition Bid Sheets. Our Home Addition Bid Sheets provide you with the knowledge and information on how to plan a home building project, and what to look for when hiring contractors. They also include detailed cost breakdown tables and spreadsheets for estimating your own new home construction building costs.
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