What size is a 2x4?

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Sangersteve
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What size is a 2x4?

Postby Sangersteve » Tue May 28, 2024 7:19 am

Tell me you've never worked with lumber without tellng me you've never worked with lumber.

Just stumbled on a thread on X. Discussing why framing lumber is smaller than advertized.

The thread starter was aghast that a 2x4 wasn't 2x4.

He just couldn't get over the false advertizing.

It got very strange.
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rusty
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Re: What size is a 2x4?

Postby rusty » Tue May 28, 2024 8:53 am

A 2X4 is 1 1/2" X 3 1/2"

Red Oak
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Re: What size is a 2x4?

Postby Red Oak » Tue May 28, 2024 12:18 pm

Historically, lumber in the US changed from the full 2 by 4 dimensions about a 100 years ago, then it was planed to approximately 1 5/8 by 3 5/8, for the next 40 odd years before the current 1 3/4 by 3 1/2 was introduced.

Most likely because of the lower quality of the lumber being cut.
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rusty
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Re: What size is a 2x4?

Postby rusty » Thu May 30, 2024 12:48 pm

Red Oak wrote:Historically, lumber in the US changed from the full 2 by 4 dimensions about a 100 years ago, then it was planed to approximately 1 5/8 by 3 5/8, for the next 40 odd years before the current 1 3/4 by 3 1/2 was introduced.

Most likely because of the lower quality of the lumber being cut.


Except a 2X4 isn't 1.75 X 3.5


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