How to choose an indoor pen for a rabbit: what to look for

An indoor pen that actually works for a rabbit comes down to four things: at least 2 m² in one continuous area, panels at least 90 cm tall if the top is open, bar spacing narrower than the rabbit’s head, and no wire floor. Everything else — colour, brand, bundled accessories — is convenience.

This page is about choosing the product. Which type of housing to go for in the first place (cage, pen or free-range) is compared in rabbit cage or pen, the minimum floor areas per size are set out in what size enclosure for a rabbit, where to put it in the room in where to put a rabbit enclosure, and how to lay it out inside in how to set up an indoor pen for a rabbit.

The three families of pen sold for rabbits

For a permanent setup, modular panels give the best area-per-pound once you go past 2 m². A soft pen only makes sense for temporary, supervised use — an outing in another room, or a stay somewhere else.

Height: the criterion most often underestimated

A healthy adult rabbit jumps high, and more importantly it jumps from something. A box, an upturned tray or a hay rack against a panel turns a 90 cm pen into a 50 cm obstacle.

• Open-topped pen: 90 cm is the working height, 100 cm and above for a medium or large rabbit. The full per-size figures are in what size enclosure for a rabbit.
• Pen with a roof: height can drop to 60-70 cm, provided the rabbit can stand fully upright without touching the top.
• In all cases: no furniture, tray or hideout against a panel. A rabbit that has learned it can get out will keep doing it.

A rabbit that jumps out — and equally a rabbit that refuses to go back in at night — usually has a layout problem rather than a temperament problem: that one is covered in my rabbit won’t go back in its pen.

Bar spacing and flooring

Two safety points come before everything else:

• Spacing must be narrower than the rabbit’s head. A young rabbit pushes its head between two bars and traps itself pulling back out, ears folded. Check against the expected adult size, not the rabbit in front of you today.
• Never a wire floor. A mesh base puts pressure on the hocks, especially in heavy rabbits and older ones — the mechanism is described in sore hocks in rabbits. The pen stands directly on the room’s floor, protected by a suitable surface (the best floor surface for rabbits).

Stability: the weak point of almost every model

This is the most common disappointment a few weeks in. A rabbit does not merely live inside its pen: it pushes the panels with its nose, digs at their base, lifts them and leans on them to stand up.

• Reinforce every corner with cable ties or metal fasteners rather than trusting the plastic clips supplied.
• Anchor at least one side against a wall or a heavy piece of furniture, so the whole thing does not migrate centimetre by centimetre.
• On hard floors, stand the pen on a non-slip mat: a metal pen slides and eventually opens at a corner.
• Check the joints once a month. A panel that has shifted two centimetres creates both a gap and a pinch point.

The access door, routinely overlooked

On paper the door is how the rabbit gets in and out. In practice it is mostly for you: changing litter, rinsing a bowl, retrieving an animal that has no intention of cooperating, vacuuming around the tray.

Look for an opening wide enough to pass a full litter tray through without tipping it, and a door that swings outwards and stays put when open. A model that needs a panel removed before you can clean it ends up cleaned less often — and that shows up as smell (how to reduce rabbit litter odour).

Does it need a roof?

Three situations justify one, and only three:

1. A cat or a dog shares the home. A covered pen is part of the setup described in keeping a rabbit with a cat or dog.
2. The rabbit genuinely clears the panels, despite adequate height and nothing to jump from.
3. Young children open the pen unsupervised.

Outside those cases, a roof makes cleaning harder and cuts airflow without giving the rabbit anything.

What breaks after six months

• Plastic clips and connectors, the first to give way under repeated pushing.
• The coating on the bars, chewed and then flaking where the rabbit nibbles — check it does not come off in swallowable pieces.
• Door hinges on folding pens, which develop play every time the pen is folded.
• The fabric of soft pens, pierced at floor level.

A pen whose panels can be replaced individually costs less over time than a one-piece model you have to buy again.

Checklist before buying

Where to go next

A concrete next step: before ordering, mark out the stated floor area on the ground with masking tape, furniture where it stands. It is the only way to see whether the advertised 2 m² really fits where you intend to put it — and whether the door will still open fully once the pen is up.

The rest of the starting kit is sorted through in what accessories are truly essential for a rabbit. Our other guides are gathered in the rabbit accessories section and on the rabbit species page.