Question for old timers about lumber size.?

  • Thread starter Thread starter David
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David

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In USA, typically what year did sawmills change the size of a 2 X 4 to be the current size of 1 3/8" X 3 1/2"?

This one is going to date you guys :)
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Here is another. Approximately what year did square nails get replaced by round nails?

I am doing some historical dating of old pioneer structures, that is why I ask these questions.

Thanks in advance.
 
this web site should answer your question. i found it to be an interesting read. have fun
www.appaltree.net/aba/nails.htm
 
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