Cage Size: Let’s Talk About It.
Now that we’ve covered flooring, the next topic that always comes up is cage size. And this is where a lot of internet arguments start. Rabbit housing standards are not based on what looks roomy to humans or on pet culture trends. They’re based on measurable factors: • body size • posture and movement • species behavior • stress physiology • hygiene and disease control • actual welfare outcomes That’s why the Animal Welfare Act, ARBA recommendations, and decades of WRSA housing studies all use weight-based space requirements instead of the “every rabbit needs a whole room” claims you see online. For individual rabbits, the commonly used standards are: Under 4.4 lb → 1.5 sq ft 4.4–8.8 lb → 3 sq ft 8.8–11.9 lb → 4 sq ft Over 11.9 lb → 5 sq ft For does with litters, space increases: Under 4.4 lb → 4 sq ft 4.4–8.8 lb → 5 sq ft 8.8–11.9 lb → 6 sq ft Over 11.9 lb → 7.5 sq ft That places most commercial meat breeds and many show breeds in the 4–6 sq ft range, depending on whether they are singly housed or nursing. That isn’t opinion. That’s the standard. Another point people tend to miss: Preference studies do not consistently show rabbits choosing the largest possible space. They often choose secure, moderate, enclosed resting areas. And the more recent stress research keeps pointing in the same direction. A 2022 study measuring cortisol and IL-6 found rabbits in an open-air niche system actually had higher stress markers than rabbits housed in conventional cages in a shed. Movement alone isn’t welfare. “Looks active” isn’t the same thing as low stress. There’s also a problem with some of the anti-cage studies people cite. One recent housing study used ~1.6 sq ft single cages, which doesn’t even meet US AWA minimums. Then they reported more stereotypic behavior. That’s not a fair test of proper single housing. That’s a test of undersized cages. For reference, my own cages for New Zealand-type rabbits are: Singles → ~576 sq in (4 sq ft) Doe with litter → ~864–900 sq in (6+ sq ft)