Our Verdict
The Double Critter Nation is the gold standard cage for a rat group. Two full levels of space, 1/2-inch bar spacing, and full-width doors make it the top community recommendation.
Rats are active, intelligent animals that need vertical and horizontal space plus enrichment. The DCN's two full-width levels allow multiple hammocks, ropes, and enrichment stations. A pair of rats fits the Single CN, but a group of 3+ should have the Double. All wire shelves and ramps need fleece covers.
Pros & Cons of the Double Critter Nation
✅ Pros
- Massive vertical and horizontal space
- Gold standard for chinchillas and rats
- Full-width doors on each level
- Modular — buy single and add second unit later
❌ Cons
- Large footprint — measure your space first
- Expensive new
- Heavy to move once assembled
- Wire shelves require covering with solid material
What Rats Need in an Enclosure
Rats are highly intelligent and need both horizontal AND vertical space, plus enrichment. Multi-level wire cages with 1/2-inch bar spacing are the standard. Rats should always be kept in groups of at least two. Hammocks and ropes must be provided as they are climbing animals.
⚠️ Things to Avoid for Rats
- Bar spacing over 1/2 inch — rats can escape or get stuck
- Solid-walled enclosures with no ventilation
- Housing a single rat alone
- Aquariums — insufficient airflow, ammonia builds dangerously quickly
Frequently Asked Questions
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What is the best cage for pet rats?
The Double Critter Nation is widely considered the gold standard. It offers two full levels, 1/2-inch bar spacing to prevent escapes, full-width doors for easy cleaning, and excellent durability. All wire shelves must be covered with fleece.
Other Enclosures for Rats
- 10 Gallon Glass Tank
- 20 Gallon Long Glass Tank
- 40 Gallon Breeder Glass Tank
- 75 Gallon Glass Tank
- DIY Bin Cage (110L / 640+ sq in)
- Single Critter Nation
- IKEA Detolf Glass Cabinet (converted)
- C&C Grid Cage (2×4 Grids)
- C&C Grid Cage (2×5 Grids)
- Wire Dog Crate (Medium — 36")
- Wire Dog Crate (Large — 42")
- Heavy-Duty Escape-Proof Dog Crate
- Cat Tree / Condo (72"+ height)
- Indoor X-Pen / Exercise Pen
- PVC Reptile Enclosure (4'×2'×2')