Ok I'm convinced to a 60" round, hopefully with drop in leafs for extra seating. I spoke with the table maker today and he's on vaca until Saturday so we'll touch base early next week and finalize plan/start the actual build. After all the recommendations I'm thinking too that I'll only purchase 6 of the chairs and use my existing wooden ones for extras. We aren't big entertainers and would mostly have just another couple to host but this will provide a slightly more cost effective solution for when we do entertain more. @maggieq & @cyn427 @jjam - thanks for the chair info! Yikes about the experience with the Hudson chairs, esp for how pricey they are! I've heard such mixed reviews about the overall quality of RH, either wonderful or awful, but I've been coveting the Martine for so long that I'm cautiously willing to give them a try... And hope at worst I could have them brought to a re-upholsterer for future modification over buying fresh set at that time. Thanks again everyone, this has been Hugely helpful! :-)

It sounds as though your table will fit, but as I'm not clear on which wall is where, let me suggest that you measure carefully. If your chairs, as you say, are not bulky, then you'll need 30" of space between the table and the wall where there is no real traffic pattern, allowing someone to squeeze in and out behind a chair where someone is seated during dinner. But if there is major traffic between the table and the wall, 36" will be required, with the chair pushed part way in with someone seated on the chair. Try these measurements and see if you can navigate around the table with the chairs in use by friends or family at dinner.

A good design rule is to leave 3 ft all the way around the table for circulation and chair space. That would make your largest allowable table size to be 5ft x 6ft.

Your dilemma reads like a math story problem!!! (I was horrible at them!). Please post a floor plan.