A built-in single-door fridge has a lot of fridge space behind 1 door. That way, you can store a lot of fresh fruit and vegetables. You can neatly integrate a standard built-in fridge into the niche of your kitchen. Before you purchase it, make sure to measure the niche dimensions well to ensure a good fit. Don't forget the door hinges. Choose a new fridge with the same type of door hinges as your old one. This can be a sliding door system or a door-on-door system. Want to freeze a loaf of bread or popsicles? 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.