The Complete Guinea Pig Cage Setup Guide

1. Choose the right size

Guinea pigs need room to run, not just space to sit. Most store-bought cages are too small. Space matters more than height, because guinea pigs live on the floor.

• Two guinea pigs: at least about 0.7 m² (7.5 sq ft); more is better. A 2x4 C&C grid layout (about 76 x 147 cm) is a common minimum.
• Three guinea pigs: around 1 m² (10.5 sq ft) or a 2x5 grid layout.
• Four guinea pigs: around 1.2 m² (13 sq ft) or larger.
• Add daily supervised floor time on top of cage space.

2. Pick a cage type

• C&C cage (cubes and coroplast): grid panels with a plastic base. Large, adjustable and affordable.
• Large commercial indoor cage: convenient, but check the floor area, not the marketing label.
• Indoor pen or enclosure: good for space, but needs a waterproof base and protection from other pets.
• Outdoor hutch: needs weatherproofing, predator protection and a large attached run; many care organizations prefer indoor housing in hot or cold climates.
• Avoid wire floors, which can injure feet and contribute to bumblefoot.

3. Place it in the right spot

• A room kept roughly between 18 and 24 °C (65 to 75 °F), out of direct sun and away from radiators, air conditioners and drafts.
• Somewhere with daily household activity, but not next to loud TVs or speakers.
• Raised off cold floors if possible, and out of reach of cats and dogs.
• Not in a garage, where fumes and temperature swings are a risk.

4. Choose bedding

Bedding keeps feet dry and comfortable. The best choice depends on your budget, washing setup and your guinea pigs' health.

• Fleece liners: reusable and soft. Use an absorbent layer underneath (such as towels or purpose-made liners), pre-wash several times so urine wicks through, and spot clean daily.
• Paper bedding: absorbent and low dust, easy for beginners, but an ongoing cost.
• Kiln-dried aspen shavings: an option for some owners; choose dust-extracted products.
• Avoid cedar and untreated pine shavings, sawdust, cat litter and corn cob bedding.

5. Set up the hay station

Hay should make up most of the diet and be available all the time. Put it where guinea pigs like to sit and eat, often next to the toilet corner, because they eat and toilet at the same time.

• Use a large hay rack, hay bag or low box so hay stays clean.
• Refill at least once a day, more often for several guinea pigs.
• Choose timothy, orchard or meadow hay for adults. Alfalfa is usually for young, pregnant or underweight guinea pigs as advised by a vet.

6. Food and water

• A heavy ceramic bowl for pellets that cannot tip.
• A water bottle, a heavy bowl, or both. Check flow daily and clean weekly.
• Serve fresh vegetables in a separate bowl or scattered on a clean area.
• Remove uneaten fresh food within a few hours.

7. Hideouts and comfort

Guinea pigs are prey animals and need places to hide. Provide at least one hideout per guinea pig, plus one extra, so nobody gets trapped.

• Hideouts with two exits reduce conflict.
• Fleece forests, tunnels and cozies add cover.
• Wooden or cardboard houses double as chew toys.

8. Enrichment and chews

• Untreated wood chews, hay-stuffed toys, cardboard tubes and boxes.
• Change the layout now and then to encourage exploring.
• Avoid exercise wheels and balls, which can injure the spine and feet.
• Avoid plastic toys that can be chewed into pieces.

9. Cleaning routine

• Daily: remove droppings, wet spots and leftover fresh food, refill hay and water.
• Every few days: change fleece liners or replace soiled paper bedding.
• Weekly: full clean of the base, bowls, bottle and hideouts with mild pet-safe cleaner or diluted white vinegar, rinsed and dried.
• A strong ammonia smell means cleaning is overdue; it can irritate the airways.