Gap Above Fridge . We're remodeling our kitchen and have boxed in the refrigerator to the front of the body, just behind the door. Older models and models with doors that open on standard hinges need. Do you have a gap between the top of your frig and above? from www.houzz.com 3 refrigerator gap filler ideas #1 cover panels and taller doors. The designer goofed unless you spec'd a taller fridge than the standard. There is a 3 1/2 space between the top of the hinge and the upper.