Why Rats Need More Space Than You Think (And How to Set It Up Right)
The Minimum Is Not the Goal
For two rats, the Critter Nation Double Unit is the widely accepted standard — not the ceiling of what you can do, but the starting point for doing it right. That cage runs 36 inches wide, 24 inches deep, and 63 inches tall. Rats are active, curious animals that need real room to run, climb, and explore across multiple levels.
Fleece vs. Bedding
Many rat owners use fleece liners on cage shelves — they are easy to wash, soft on feet, and reusable. Paper bedding like Carefresh works well in litter pans or as a digging layer on the lower level. Avoid pine or cedar shavings, which contain aromatic oils that damage rat lungs.
Furnishing the Space
- Fabric hammocks — rats love to sleep off the ground
- Wooden hides — safe wood gives them a retreat and something to gnaw
- Hanging tubes and rope bridges — for navigating between levels
- Foraging spots — scatter feeding or puzzle feeders give their brains something to work
Cleaning Without Disrupting Their World
Spot clean daily. Full cleans every one to two weeks are enough. Leave a small amount of used bedding when you do a full change to preserve their scent markers. Wipe down surfaces with a pet-safe cleaner and check accessories for wear.
