<<Use the 12" tiles. Run a joint at center. A full and about an 8
<head slap> I had considered that layout at the very first, but
rejected it to try to use full tiles. For some reason, I never looked
at that option again after the unacceptability of the thin tiles was
That is the easiest solution.
<<Run the tile on the 45, place diamond at center. Diagonal will be
17, 12" border.>>
You mean like so: