kegerator

  I found a brand new kegerator pretty cheap. I already have a second fridge with two taps in my kitchen. I have a root cellar that I lager in , I get 50 to 54 in the winter and 54 to 60 in the summer depending on the outside temp. My question is  how many 5 gal. carboys or corny's would fit in one. This would save a long trip down the stairway.