Quick answer

For most rabbits and guinea pigs, choose a cage that offers at least 100cm of length and enough vertical space for your pet to stand up. For active pets or those that need more room, a double or triple-tier cage provides extra living space without taking up more floor area.

Why cage size matters more than you think

Rabbits and guinea pigs are active animals that need room to hop, stretch, and explore. A cage that's too small can lead to boredom, obesity, and even health problems. As a rule, a cage should be at least four times the size of your pet when fully stretched out, but for many owners, a 100cm-long cage is a practical starting point.

The shape of the cage also matters. A longer, single-level cage gives your pet a clear running path, while a taller, multi-level cage adds vertical space for climbing and perching. Think about how your pet likes to move: rabbits often enjoy jumping between levels, while guinea pigs may prefer a more open, ground-level layout.

Multi-level cages: pros and cons

Double and triple-tier cages are popular because they offer more living space without taking up extra floor area. They can be a great choice for smaller rooms or apartments. However, they come with trade-offs. Ramps can be challenging for older or less mobile pets, and cleaning multiple levels takes more time.

If you choose a multi-level cage, make sure the ramps are sturdy and have a gentle slope. Some cages include wooden ramps, which provide good grip but may need occasional cleaning or replacement if they get soiled.

Cages with runs: extra space for exercise

A cage with an attached run or playpen gives your pet a safe area to exercise outside the main sleeping quarters. This can be a great option if you can't provide supervised free-roaming time every day. The run can be attached to the cage or used as a separate play area.

Keep in mind that a run adds to the overall footprint, so you'll need enough floor space. Also, some runs are only suitable for supervised use, not as a permanent living area.

Decision rules for choosing your cage

  • Measure your space first: Measure the floor area where the cage will go, including clearance for doors and ramps. A 100cm-long cage needs at least 100cm of width, but multi-level cages also need vertical clearance. Take measurements before you shop and write them down.
  • Consider your pet's age and mobility: For young, active pets, a multi-level cage with ramps is fine. For older or less mobile pets, choose a single-level or low-height enclosure to reduce the risk of falls. If your pet is a senior, prioritize easy access over vertical space.
  • Think about cleaning time: Multi-level cages have more surfaces to clean. If you're short on time, a single-level cage with a deep plastic base is easier to wipe down and maintain. Choose a cage that matches the time you can realistically spend on cleaning.
  • Factor in exercise needs: If you can't provide daily free-roaming time, consider a cage with an attached run to give your pet extra space to move. Otherwise, a standard cage plus separate playpen can work. Plan for at least a few hours of exercise outside the cage each day.

Cage options to consider

Which cage fits your situation?

Best for

  • Active rabbits that enjoy climbing and jumping – a triple-tier cage offers plenty of vertical space.
  • Owners with limited floor space – a double-tier cage adds height without increasing the footprint.
  • Guinea pigs or rabbits that prefer ground-level activity – a square enclosure with a deep base is easy to clean and secure.

Not for

  • Owners who cannot commit to cleaning multiple levels – a single-level cage is more practical.
  • Senior or disabled pets that struggle with ramps – a low-height or single-level cage is safer.