Guinea pigs need a minimum of 120 × 60 cm for a pair — bigger is always better. They’re prey animals, so the hutch should have a solid-walled sleeping section they can retreat into without sightlines from the garden.
The RSPCA recommends a minimum hutch size of 120cm × 60cm for a pair of guinea pigs — and guinea pigs must be kept in pairs or small groups; solitary cavies are unhappy cavies. In practice, a 4ft (120cm) hutch is the minimum worth buying. A 5ft (150cm) hutch gives a pair room to have a proper territory, separate sleeping and toilet areas, and room to run — which they will use.
Outdoor hutches need to be weatherproof: tongue-and-groove timber (10mm minimum), a sloped felt or asphalt roof, galvanised wire mesh, and legs to raise the floor above ground damp. Guinea pigs feel cold below about 15°C, so outdoor setups need to be insulated or brought inside over winter.
Indoor cages are smaller in footprint but should still be as large as you can fit — wire-top designs with a solid plastic base and pull-out tray are easiest to clean. Indoor cavies still need daily floor time outside the cage for proper exercise.
Whichever you choose, always attach or add a run — see our best guinea pig runs and hut & run combos for options that pair with hutches.
The cleanest indoor option we’ve seen at this size. Solid base, wire upper, and a footprint that fits next to most sofas without being eyesore furniture. Indoor cavies need free-roam time outside the cage too — this is the “home base”, not the whole habitat.
Best for: indoor cavies, family households. Watch-outs: always pair with daily floor-time.
Dimensions: 95 × 44.5 × 44.5 cm
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4ft is the right length for two cavies long-term. PawHut’s honest timber, simple latches, and a price that lets you spend the savings on a decent run. Sloped asphalt roof handles UK weather well. We’d call this the entry-level pick we’d actually recommend.
Best for: outdoor pair, budget-conscious first-time owners.
Dimensions: 123 × 54 × 76 cm
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Smaller footprint than the Easipet, with a dedicated sleeping chamber that’s genuinely enclosed (not just “the dark end”). Better for one cavy or a single guinea pig + neutered male rabbit pairing.
Best for: a single cavy, small gardens.
Dimensions: 90 × 45 × 70 cm
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Two storeys is unusual for cavies (their legs aren’t built for steep ramps) but the PawHut’s ramp is gentle enough that piggies use it. Doubles the usable space without doubling the garden footprint.
Best for: two cavies in a small garden. Watch-outs: not for elderly guinea pigs — ramps still aren’t their favourite.
Dimensions: 100.5 × 55 × 101 cm
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Related: Guinea Pig Runs · Hut & Run Combos · Best Guinea Pig Runs · Best Combos