Why are 2x4s actually 1.5 x3.5




















Run the board through the saw with the rounded edge touching the fence. Take the larger piece and run it through the saw with the rounded edge at the saw blade. The real dimensions of light structural lumber and timber for framing homes:. Dimensional Lumber: Nominal Size vs. We sell most of our lumber by the board foot.

A board foot is actually a measure of volume. By definition , a board foot is one square foot, one inch thick. Wood also enables the transfer of water and nutrients to growing tissues and leaves.

The term ' timber ' is used to refer to the wood at any stage after the tree has been felled. In the United States and Canada, timber often refers to felled trees, and the term ' lumber ' is used to refer to sawn wood products. I know from reading around that size wise this would roughly equate to the UK's 44 x 96 and 25 x Therefore, the mills take those initial sticks cut from the logs and saw them down to the rough size.

However, most wood these days is some form of engineered lumber anyway. All of this material in the engineered wood products comes from the waste that is cut down from the original full sawn and rough sawn members to make the nominal sized dimensional lumber. The following excerpt is from there:. Harp good catch. Going from memory…and college was a while ago ;. This question is in the General Section. Responses must be helpful and on-topic. To join, you must be at least 13 years old and agree to the terms and conditions.

General Question. Why are 2x4's actually 1. Add Topic questions 18 people. Add Topic questions 28 people. Add Topic 82 questions 7 people.

The 2x4 refers to the rough-cut green wood: it shrinks during drying, then the dried wood is planed smooth, so the finished lumber is supposed to end up at 1. While it doesn't really shrink that much, the mills get more usable finished 2x4's from a given tree if they cut them slightly smaller to begin with.

What wood is 2x4? Fir, Hemlock and Pine Options One of the most commonly used two-by-fours for framing is made from softwood known as Douglas fir, with hemlock a close competitor. The two species share similar qualities of strength, appearance and durability and are often marketed together and sold as Hem-fir. How much weight will a 4x4 hold?

What I figured if the weight is distributed evenly is that each 4x4 post is supporting a max of about pounds. What does 1x6 mean? Nominal vs. What is stronger 4x4 or 2 2x4? Now, I knew two 2x4s sistered would be stronger than a 4x4 since you have opposing grains, what I didn't realize is that 4x4s are actually cut from the core of the tree which is the weakest part of the tree thanks Dad for the lesson in lumber.

So a standard 4x4 is actually much weaker than two 2x4s side by side. In the past, when a timber was called a 2x4 [or "two-by-four"], it actually measured 2 inches by 4 inches.

Now, most timber is milled and planed to give it a little more of a finished look, and a little more of a consistent size and profile. Because of this extra milling, a 2x4 no longer measures a full 2 inches by four inches.



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