The dimensions of a typical refrigerator with the freezer at the top or the bottom of the unit ranges between 23 and 36 inches wide, 24 and 33 inches deep, and 65 and 69 inches high. Having the door opened to a 90-degree angle adds 27 inches to the depth.
Side-by-side units with the freezer on one side and the refrigerator on the other are slightly larger. The dimensions of a side-by-side unit range from 30 to 36 inches in width, 29 to 35 inches in depth and 67 to 70 inches in height. The depth of the side-by-side refrigerator gains an additional 15 inches with the door opened to 90 degrees. Refrigerator size generally coincides with the cost of the unit, with smaller units being less expensive and larger units being more expensive.