Fyi - Nate Berkus (who no longer has his Home Decorating TV show) had a lot of fans including me. His advice about rugs was that the larger they were, the more expansive they made the room feel. So if you are wanting the room to be more expansive than cozy, according to his rule, 10 inches from the sides of the room in all directions would be a good thing. Even with the traditional style of the room now, I think a large rug as you describe will make it feel a lot more contemporary. If that is not what you want, then keep the rug small. Otherwise, the sky is the limit. Though I am a newbie at this stuff, I will offer my opinion that I think the room will be stunning with the larger rug. As far as the hutch, I don't see a visual problem with it being half on and half off but if I were you, I would seek professional advice on how to make sure the addition of the new rug doesn't add instability to the hutch. Good luck and thanks very much for showing us pictures of your living room.

I don't think there is any specific size as it depends more on the size of the foyer. It is difficult to say without a picture, but with what you describe, I think the size sounds about right--if you can center it. Given the fact that the foyer is a square and the rug round, I think the symmetry would be important in this case. Otherwise, I'd prefer to see a rectangular one butted up to the door.

@redifar since you already choose the two of them, the first one will do just fine and like @houssaonmentioned above, a nice round table would look awesome. Make sure to observe "scale" - not too big, not too small but just right. Good luck. Nice project.

Okay not to be mean but really a foyer that size and you need bedrooms so much wasted space . The size of the cahndeliers and the style will dictate placement and we need a floor plan and I would like to see the actual plan for the 2nd storey too.