I have appeared to be dragged into an argument with my landlord about refrigerated space and he mentioned about having adequate space in a combi fridge freezer. So that spurred this question to the chefs of the world (or anyone in matter of fact) is how much would you assume to be enough space for a single person in a shared house?  As an example - being 22 years old, cooking lean and green meals (salads and pastas) I normally have:   Milk - 1L Bag of salad - 150g Tomatoes - 300g Cucumber - 200g Mushrooms - 300g Peppers - 2x75g Ham - 300g Cheese - 200g Coleslaw - 250g Orange juice - 1L Chicken Brest - 500g Mince - 500g   That is roughly 2L and 3kg worth of food stuff for a week and I'm happy with that, and that takes up just over half a shelf and 2 spaces in the door.   What would you think would be enough both space and weight wise if you were not sharing food with others for this exercise. Is half a shelf enough for just you raw food? 
I'm surprised you're getting that much stuff on half a shelf, so unless the fridge is enormous with very wide shelves, I can only assume you're stacking it up, which isn't how food should be kept in a refrigerator. For one thing, raw meats should be stored at the bottom of the fridge so that they don't drip or contaminate cooked foods or food that will be eaten raw. Secondly, a fridge keeps food cool only if air can circulate properly between the foods stored - if they're stacked high, and everyone else is doing the same so that the fridge is crammed, any foods inside won't be at the required storage temperature of 5 deg C or below.  Otherwise, as the others say, it's difficult to answer your question - the average combination fridge/freezer supplies up to 250 litres of storage space within the fridge, possibly more in the States, but it varies according to make. My own one provides 180 litres, and it's not really big enough to store all the stuff correctly when I've done a weekly shop, even though I live alone. 