As of 2015, EdgeStar, Frigidaire and Summit Appliance offer compact refrigerators with door locks. Storage capacities vary by brand from 1.1 cubic feet to 4.5 cubic feet.
The EdgeStar CRF150SS-1 is a 1.1-cubic-feet convertible refrigerator and freezer with a factory-installed, door lock. Customers who purchase the refrigerator receive two keys. The Edgestar CRF150SS-1 also features a reversible door and a stainless steel finish. The refrigerator stands 19 1/4 inches high by 18 1/2 inches wide and has a depth of 17 3/4 inches.
The Summit Appliance FF28LWH has a 2.4-cubic-feet storage capacity and features a factory-installed lock. Both electric- and battery-powered keypad locks are available as upgrades for this model. Customers can also purchase extra keys. The Summit Appliance FF28LWH features an automatic defrost system and a flat door liner. It stands 24 1/2 inches tall by 18.5 inches wide and has a depth of 17 3/4 inches.
The Frigidaire FFPE4522QB is a 4.5-cubic-feet refrigerator with a built-in door lock. The key ejects after the refrigerator is locked. The Frigidaire FFPE4522QB also features a crisper drawer, a removable shelf and a reversible door. It stands 33 7/8 inches tall by 211/4 inches wide and has a depth of 23 inches.