A built-in fridge is a built-in fridge in your kitchen. It's important to pay close attention to the niche height when selecting a built-in fridge. This refers to the height on the inside of the space you want to install the fridge, 102cm or 122cm, for example. The standard niche width of a built-in fridge is 56cm. When making a choice, take note of the door hinge on the hinge system of your current fridge. Always select the same type of hinge you're using now to make sure the fridge will fit.