A built-in single door fridge can be recognized by the fact it only has 1 door. You can smoothly integrate a cabinet model built-in fridge into the niche of your kitchen. Before purchasing, make sure to closely measure the niche dimensions to ensure a good fit. Don't forget to take the door hinges into account, either. Select a new fridge with the same type of door hinges as your old one. This can be either a be a sliding door system, or a door-on-door system. Want to freeze products? Choose a model that includes a small freezer compartment. If you want to install the fridge under the countertop, choose a under-counter, single door fridge.