Think of the size of your dining room furniture. Make sure the area rug is large enough and that it works well with your dining room set. Be sure each dining chair remains on the rug when pulled out. You don't want the chairs half on and half off the rug at any given point.
* Think of your privacy.
Make sure your family time at the dinner table remains private. Keep out those nosey neighbors or any other distractions! Possible solutions include drapes, blinds, and non-glaring windows.