In message , Roger Hayter
writes
alan_m wrote:

On 10/01/2019 21:54, soup wrote:

My favourite is 4 X 2 wood (nominally 4 inches by 2 inches) yet sold in
metre lengths so you get things like :-


Was it ever 2" x 4"?

Yes. Before it was planed.

Likely before it was sawn: the saw kerf included in the measurement.
Trees have exceptionally funny rules:-)


--
Tim Lamb