I would put it beyond the columns. especially if you plan for a tv in the family room area.

If it were my house, I would place the dining table on the left closest to the kitchen, where you would have easiest access. Then I would float sofas. occasional chairs and end tables on the other side of the columns.

@dlly9660 If you'd like an informal dining setting, we suggest you keep it close to the kitchen. By placing a dining table against those columns, you could camouflage them or you consider boarding up the space between the columns. The other side of those columns can be covered by a large bookcase. The area beyond the columns can be used as a formal or informal seating area. We've made you another layout with a more formal dining area here. You can also add or replace furniture and move them around to create your own layouts in interactive 3D designs here and also render your own photo-realistic images!