Guinea Pigs: Cage and Exercise

This article will tell all you guinea pig fans how to keep your pets happy. First thing’s first: no matter how big a cage is, it’s never big enough and can never replace exercise outside the cage.

How to Keep Them

Guinea pigs are sociable animals, so should never be kept alone. You should keep at least two, or even better, four or more. Females usually get on very well but males can be harder to keep so not ideal for beginners. If you have several females, you can introduce a castrated male. Ideally, all guinea pigs should be around the same age.


Pet stores will often claim that their cages provide “plenty of room”. However, these cages usually don’t even meet minimum size requirements. A cage that is too small is very unpleasant for the animal, as they’re naturally so lively and active, and love moving around. Cages with plastic trays at the bottom (for easier cleaning) and metal bars at the top without a plastic coating are ideal. You could even build your own cage with a little skill. The best thing about this: you can decide the cage’s size for yourself, and become a “cage designer”.

Cage size:

  • At least 48 x 32 inch (120 x 80 cm) for max. two animals

The perfect location for a cage:

  • No draft
  • Not too close to the heating
  • Not directly next to the window
  • Not in your bedroom

Near the cage:

  • No perfumes, alcohol, smoke
  • No TV
Interior Of The Cage

The perfect cage
Cork or earthenware pipes as a base
A second floor will increase the cage’s floor area
Twigs, roots
Wooden bridges, wooden tunnels

Not like this!
Dead ends - tunnels with only one end
Steep ramps or ladders
Salt or mineral licks
Too many things - this reduces the area inside the cage


Anyone buying a large cage thinking that their guinea pigs won’t need any additional exercise is sorely mistaken. Even if the animals are allowed to wander around for 3-4 hours each day, they still have to sit in their cage for the rest of the time, so 20-21 hours.

The best solution is a run that’s directly connected to the cage (like a small corner of the living room). The animals can then decide for themselves when they want to explore. This is very important, as they’re also active at night - and who is going to get up in the middle of night to exercise their pet?

The right run:
At least 22-32 square feet (2-3 square meters)
Soft, padded tunnels
Cardboard boxes (with two entry/exit holes)

Be careful with

  • Houseplants (could be poisonous)
  • Electrical cables (they love to nibble cables and they can cause electric shocks)
  • The kitchen (sharp objects)
  • Closets and cabinets (keep closed)
  • Cleaning products (toxic)

If you have an outdoor run in the summer, make sure it’s in the shade.

Please note: guinea pigs don’t like being picked up. They freeze when they’re scared, which we humans mistake for calm contentment.

More info:
Guinea Pig Breeds
Guinea Pig Pros and Cons
Monthly Costs for a Guinea Pig
Guinea Pig Facts

Irish Crested Guinea Pig Irish Crested Guinea Pig - Photo: Nathan clifford/Shutterstock