It is unlikely that a refrigerator that is 21.5 cubic feet in size will fit in a space that is only 21 cubic feet. There is only a small margin of difference in volume between the two, and it is possible that the refrigerator may not fit properly or may be difficult to maneuver into the space. It is recommended to measure the space accurately and consult the refrigerator's specifications before attempting to fit it into the space.
