Why are physical wood dimensions different than the advertised dimensions? Why does a 2×4 measure 1-1/2” x 3-1/2” and not 2” x 4”? And what the heck is a nominal dimension? To answer these questions, we need to travel way back in time and look at the history of the 2×4 and how wood dimensions have evolved over time. Read more
Why does a 2 x4
not measure 2” x 4”?