Thanks! smile Your numbers agree with mine. In a couple of books I have read these are tried and true target ratios for any rectangular room.

In a htgeeks vid #178 there is mention of avoiding peaks and nulls in loudspeaker placement so as not to influence low frequency output ie. <300Hz. My prior room didn't follow rules for speaker locations, but did for seating. I am designing my next room with fidelity as priority #1, as video is far less demanding planning wise to get optimum results... You must be glad you are finished. Oh wait, there is no such thing as finished! grin