"Jon Dough" said:

You still made the same assumption that the square post
contains more wood, even after I've told you twice that isn't
true.

Some people just can't see the forest for the trees...
A 4" square post would be stronger than a 4" round post.

Yes, that would be true, but that wasn't the question. Thanks, but
the question has already been answered.
--
McQualude