What are the dimensions of a "two-by-four"?
Answer 1.5" x 3.5"
Once upon a time, a two-by-four was actually a two-by-four (2" x 4"). Today, however, what's still called a two-by-four measures only 1 1/2" x 3 1/2". This is because modern practice is to mill and plane timber to give it a more finished and consistent look.
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