How much bedding does a gerbil need?
A gerbil needs a bedding depth of at least 20-25cm in an enclosure that allows real digging, because gerbils are burrowing animals in the wild and a shallow layer of substrate stops them doing the one thing their setup most needs to provide for. The right amount depends on the size of your enclosure, but as a rule, more depth is better than more surface area for a gerbil's wellbeing.
Why depth matters more than most owners expect
In the wild, gerbils dig extensive tunnel systems and spend a large part of their day underground, so a cage with only a couple of centimetres of shavings across the floor gives them almost nothing to do with that instinct. A deep bed lets them create tunnels, chambers and a proper burrow structure rather than just scratching at the surface.
A tank or enclosure at least 40-50cm tall, filled to around half its height with a diggable substrate, gives most pairs or small groups enough depth to build a real tunnel system without it collapsing on itself.
What to bed a gerbil on
Paper-based bedding and finely shredded, dust-extracted wood shavings are the safest general choices, ideally mixed with a digging substrate such as a gerbil-safe soil-like blend to help tunnels hold their shape. Avoid sawdust and anything visibly dusty, since gerbils have sensitive respiratory systems and fine dust is a genuine irritant over time.
Cedar and untreated pine shavings are best avoided too — their natural oils have been linked to respiratory irritation in small rodents, and there are plenty of dust-extracted, gerbil-safe alternatives that don't carry the same concern.
Keeping it clean without disturbing the burrow
A full clean-out disturbs a gerbil's whole tunnel system, which is stressful for them and undoes weeks of digging work, so most owners spot-clean the surface and any damp or soiled patches weekly and only do a complete bedding change every few weeks.
Gerbils are naturally dry, low-odour animals compared with many small pets, which is a sign that a healthy setup is working — a strong ammonia smell developing quickly usually means the bedding needs freshening up or the enclosure needs a slightly larger base.
What these need
Things we stock that owners commonly reach for here. Nothing on this page depends on you buying one.
Four Flags Quick Ferret Muzzle — Grooming & Handling Aid
A temporary, reliable muzzle designed specifically for ferrets — useful for grooming, medicating, and routine handling.
£14.99
Tarhong Boho Kitty Melamine Small Pet Bowl
A patterned Boho Kitty bowl in BPA-free, shatterproof melamine — dishwasher safe and steady on any surface. 14×5cm.
£10.99
Tarhong Rio Medallion Small Melamine Pet Bowl
A bright, compact melamine bowl with a non-slip base — ideal for smaller dogs as a handy food or water bowl.
£10.99
Tiny Friends Farm Russel Rabbit Tasty Nuggets
Complete dry nuggets for adult rabbits, with added vitamins and minerals
£5.90
Common questions
- Can gerbils have too much bedding?
- Not really, provided the enclosure is tall enough and ventilation isn't blocked. More depth simply gives gerbils more room to express their natural digging behaviour, and a shallow layer is a far more common problem than an overly deep one.
- What bedding should I avoid for gerbils?
- Avoid cedar and untreated pine shavings, which can irritate a gerbil's airways, along with anything dusty, scented, or based on cat litter. Paper-based bedding and dust-extracted wood shavings are the safer everyday choices.
- How often should I change my gerbil's bedding completely?
- Roughly every few weeks is typical for most setups, spot-cleaning soiled patches in between. A full change disturbs the tunnel system gerbils build, so doing it less often than you might for other small pets is usually kinder, as long as the enclosure stays reasonably fresh.
- Do gerbils need a nest box as well as deep bedding?
- It helps, especially while a tunnel system is being established, but deep, diggable bedding is the more important factor overall. Many gerbils will happily build a nest chamber within the bedding itself rather than using a separate box once they have enough depth to work with.
- Can the wrong bedding make a gerbil unwell?
- Yes, dusty or oily bedding such as untreated cedar or pine can irritate a gerbil's respiratory system over time. If your gerbil is sneezing, has watery eyes, or seems less active than usual, it's worth checking with an exotic-savvy vet in case the bedding needs changing.
Related
Sources
Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.