This was a great article.  It looked at joint fit (tight, snug and loose), wood type (tight grain, open grain and tropical hardwood) as well as the most common glue types.  It provided the breaking point for each of the fit-classes, wood types and glues used on 162 or so test pieces.  The one thing it did not provide was the dimensions of the test pieces.  As a retired techno-weenie, I would like that so that I could convert the failure loads to failure stresses.  That would make the information more universal, allowing you to use it with some confidence on larger or smaller projects.

I understand that the values are averages and that every piece of wood we handle is at least a little different from other boards cut from the same tree.  That said, using a conservative safety factor should go a long way to addressing the variability.

Can anyone help with those dimensions?

Thank you.  Any help is a big help and it is appreciated.

  Joe