Answer
What size cage does a guinea pig need?
A pair of guinea pigs needs at least 7.5 sq ft (about 30 × 36 in), and 10.5 sq ft (30 × 50 in) is better; three need about 10.5 sq ft and four about 13.
Minimums at a glance
| Guinea pigs | Minimum | Better |
|---|---|---|
| 1–2 | 7.5 sq ft | 10.5 sq ft |
| 3 | 10.5 sq ft | 13 sq ft |
| 4 | 13 sq ft | 15.8 sq ft |
7.5 sq ft (30 × 36 in) for one or two; 10.5 sq ft (30 × 50 in) is better for a pair.
More questions
Can a guinea pig live alone?
Guinea pigs are social and do best with a companion; plan the cage for two.
Do guinea pigs need a tall cage?
No: they don’t climb, so floor space matters most.
Is a bigger cage better for a guinea pig?
Yes: these are minimums, and welfare groups agree that more space is better.
How do I measure a guinea pig cage?
Use the inside floor dimensions, not the outside of the base or the box size.
Do levels or shelves count as floor space?
Extra levels add enrichment, but most guidance is based on the main floor area.
How much time should a guinea pig spend outside the cage?
Many small pets need daily time out of the cage; rabbits, chinchillas and ferrets need hours of extra space a day.
Can I check my own guinea pig cage?
Yes: enter its inside length, width and height in the cage size calculator.
Where do these minimums come from?
From the welfare and veterinary sources linked below.
Citing this? Link to https://tools.thesturdypaw.com/answers/guinea-pig-cage-size/. Free to reuse with a link (CC BY 4.0).
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