We looked up the published floor sizes of real cages and playpens sold in Australia and checked them against welfare guidance.
Quick answer
For most Australian owners, the best guinea pig cage is a DIY C&C cage. A 2 × 4 grid layout gives about 1 m² of floor, in line with RSPCA Australia's guidance of at least 2 m × 0.5 m (1 m²) for a pair, for roughly $100–$120. The easiest ready-made option is a pen of about 140 × 70 cm. Two pet-shop cages we checked give only about 0.5 m², half what a pair needs.
Ranked by how well each option meets RSPCA Australia's size guidance, then by floor area. Prices last checked 25 September 2026.
About 1 m² or more of floor for a pair, in line with RSPCA Australia guidance.
Indoor pen
Suits: 2 guinea pigs
Approx. price
Check price
ℹ️ Amazon pricing varies by seller and variant.
DIY C&C grids
Suits: 2 guinea pigs (as a 2×4 build)
Approx. price
≈ $87
Workable for one or two pigs, but below the recommended size. Consider joining two units together.
Indoor cage
Suits: 1–2 guinea pigs (minimum only)
Approx. price
Check price
ℹ️ Better value if you connect two units (about 1.46 m²).
Sold for guinea pigs, but well under the minimum. Fine as a carrier or a short-term cage while a pig recovers from a vet visit.
Indoor hutch
Suits: Not enough for a pair
Approx. price
≈ $244
Indoor cage
Suits: Not recommended as a full-time home
Approx. price
≈ $209
For most owners, a DIY C&C cage is the best value. A 2 × 4 grid layout gives about 1 m² of floor, the same area as RSPCA Australia's guidance of at least 2 m × 0.5 m for a pair, and storage grids cost well under the price of a pet-shop cage. If you'd rather not build one, a ready-made pen of about 140 × 70 cm is the easiest option that gives a similar floor area.
Wire storage cube grids from Kmart, other homewares stores and online sellers make a good C&C cage when combined with a Corflute base from Bunnings. Check the panel size (standard grids are about 35.5 cm), that there are enough panels for your layout, and that the gaps are small enough for your guinea pigs.
Many aren't. Two of the cages we checked that are sold for guinea pigs in Australia give only about 0.5 m² of floor, which is half of RSPCA Australia's guidance for a pair and below the bare minimum for one guinea pig. Always check the floor dimensions rather than the label.
A DIY C&C cage for a pair usually costs about $100 to $120 in total for grids and a Corflute base, and bigger layouts cost a little more. Ready-made C&C kits cost more, often around $300 to $500. Pet-shop cages often cost $90 to $250, and many of them don't meet even the bare minimum. Prices change often, so check current listings.
No. We compare the published specifications of cages sold in Australia against welfare guidance, mainly floor area. We have not tested them hands-on, we are not sponsored, and we earn no commission from the links.
Send it our way and we'll check the specs. We'd especially like to hear about Australian-made options.