12 cu ft fridge

I've generally found I run out of freezer space before I run out of fridge space. 12 cf is quite sufficient for two people for a week, in my opinion and experience, though a lot does depend on what you eat and how much you think stuff needs refrigeration. If you keep two cans of beer or soda in the fridge vs. the whole 12 pack (and rotate a new one in when you take a cold one out) you can save a lot of space.

If you like frozen pizzas, make sure your freezer is deep enough to fit a pizza in.