erm, dont do it
presumably, its to put the appliance in a cupboard and hide it
trouble is, all refrigeration needs some gap/area around and underneath to breath
integrated fridges and freezers get around the problem by having a recirculatory fan in the base to cool the condenser, the usual sign is a vent in the plinth
what im trying to say is that if it isnt a specifically designed integrated appliance, dont integrate it, as it wont function normally, and youll invalidate any supplied warranty
if it is inegrated, the door would be standard size
more info please