Some 36″ refrigerators may end up fiting in, but the bitter truth is that, most of them will not since they’d be requiring an opening space of at least 37-38″ depending on the type of the refrigerator. Nevertheless, there’s a way through which you can be know whether the refrigerator you bought will fit in a particular area or not. In case of most refrigerator models, specifications regarding the installation dimensions are included in their respective user manual guides provided by the manufacturer.