If you need both a commercial refrigerator and a commercial freezer, but you don't have a lot of extra space, consider a Continental Refrigerator Dual-Temperature Reach-in model. These units combine either a refrigerated half-section on top and freezer half-section on bottom, a full-section refrigerator and a full-section freezer, or two refrigerator sections with one freezer section.
Also make sure to check out other great Dual Temperature Refrigerator options.