
Common Mistakes When Buying an Animal Enclosure (and How to Avoid Them)
, 8 min reading time

, 8 min reading time
An animal enclosure may seem like a simple purchase, but in practice, many things can go wrong. Buyers often choose too quickly: an enclosure that is too small, made from the wrong material, poorly insulated, or unsuitable for their home or project. The result is an unsafe environment, health issues for the animal, and an enclosure that needs replacing within two years. Whether you are looking for an outdoor animal enclosure for chickens, rabbits, cats, or larger animals, the mistakes people make are often the same. In this article, we cover the most common mistakes by category, so you can make the right choice.
An animal enclosure is a sheltered space specifically designed to house animals safely and comfortably. This can range from simple outdoor cages and wooden shelters to fully insulated modular kits with separate living and sleeping areas. A good animal enclosure protects against weather, wind, predators, and extreme temperatures. The term custom animal enclosure refers to enclosures designed around the animal species, number of animals, and available outdoor space.
Size-related mistakes are the most common category. People consistently underestimate how much space an animal needs — both now and in the long term.
An enclosure that is too small leads to stress, behavioural problems, poor air quality, and in serious cases, illness. This applies to all animal species — from rabbits and chickens to cats and larger hobby animals. Always calculate at least double the space you would instinctively choose and check the official guidelines for your specific animal species.
| Animal species | Minimum indoor space | Recommended outdoor run |
|---|---|---|
| Rabbit (1 animal) | 3 m² | 8 m² |
| Chickens (4–6 birds) | 4–6 m² | 10–15 m² |
| Guinea pig (2 animals) | 1.5 m² | 4 m² |
| Cat (outdoor run) | 4 m² | 10–20 m² |
People often start with one or two animals and expand later — at which point the enclosure quickly becomes too small. When in doubt, always choose a modular system or a large animal enclosure that can be expanded easily, rather than having to reinvest later.
Material choice determines how long an animal enclosure lasts and how safe it is for the animal. Mistakes in this area are costly and have direct consequences for animal welfare.
Cheap animal enclosures are often made from untreated wood, chipboard, or MDF — materials that absorb moisture, swell, and quickly rot outdoors. Choose impregnated quality wood such as Scandinavian spruce or Douglas fir, treated with a non-toxic, animal-safe stain.
Thin, weak mesh offers no real resistance against foxes, mustelids, or rats — even in built-up environments. Always choose mesh with a minimum wire thickness of 1.2 mm and a mesh size of no more than 2.5 x 2.5 cm, and check all locks and hinges for strength.
Even outdoor animals need a sheltered, temperature-stable sleeping area — a poorly insulated enclosure becomes too cold in winter and too hot in summer. For an outdoor animal enclosure that remains in place all year round, allow for a minimum wall and roof thickness of 18 mm.
In addition to size and material, there are practical mistakes that only become visible after the enclosure has been installed — and are then difficult to correct.
Ammonia from droppings builds up in poorly ventilated enclosures and can cause respiratory problems and chronic stress. Every animal enclosure should have at least two ventilation points, preferably high in the wall or roof, so gases can escape without creating draughts at animal level.
An enclosure in full sun can overheat in summer, while an enclosure placed in a damp low point can fill with rainwater. Always place an outdoor animal enclosure on a level, well-draining surface with at least 10 cm of free space around it, and preferably orient the entrance towards the south or east.
Incomplete kits, missing screws, or unclear instructions lead to unstable and unsafe structures. With an animal enclosure kit, always check reviews for ease of assembly and verify whether all fixing materials are included.
An enclosure may technically suit the animal, but still be completely mismatched to the home, garden, or project context — resulting in practical problems or visual conflict.
A freestanding large animal enclosure dominates a small garden of 20 to 30 m², blocks light, and leaves too little usable open space. In that case, choose a compact, modular, or vertically designed enclosure and check local regulations regarding placement in built-up areas.
Standard hobby enclosures are not built for intensive use at campsites, petting farms, or business locations — they wear quickly and rarely meet professional hygiene standards. In that case, choose a custom animal enclosure with a stronger structure and easy-to-clean surfaces.
| Category | Mistake | Consequence | Solution |
|---|---|---|---|
| Size mistake | Enclosure too small | Stress and illness | Allow double the minimum size |
| Size mistake | No expandability | Quickly becomes too small | Choose a modular system |
| Material mistake | Unsuitable wood | Rot and mould | Impregnated quality wood |
| Material mistake | Wrong mesh | Predator attacks | Min. 1.2 mm wire, max. 2.5 cm mesh |
| Material mistake | No insulation | Hypothermia or overheating | Min. 18 mm wall thickness |
| Practical mistake | Poor ventilation | Respiratory problems | Ventilation grilles high in the wall |
| Practical mistake | Wrong placement | Waterlogging or overheating | Place level, well-drained, and sheltered |
| Practical mistake | Incomplete kit | Unsafe structure | Check reviews, verify the package |
| Combination mistake | Wrong context | Wear, lack of space | Choose custom work or a compact model |
Most mistakes can be avoided by asking the right questions before purchasing. Use the checklist below as a guide for every purchase:
Always choose at least double the official minimum size for your animal species. A large animal enclosure is almost never too large — an enclosure that is too small has direct consequences for your animal’s wellbeing.
Impregnated Scandinavian spruce or Douglas fir are among the most reliable choices for an outdoor animal enclosure. Avoid chipboard and MDF — these materials absorb moisture and quickly rot with prolonged outdoor use.
An animal enclosure kit is ideal when you have specific size requirements or want to assemble a custom animal enclosure while reducing transport costs. Always check whether the package is complete and whether clear assembly instructions are included.
Choose a compact, modular, or vertically designed enclosure that takes up little ground space. Also check whether local regulations impose restrictions on placing animal enclosures in built-up areas.
A well-maintained animal enclosure made from quality wood lasts on average five to ten years. Cheaper animal enclosures often need replacing after just one or two years, making them more expensive in the long run.
Doika is a specialised online provider of animal enclosures with a carefully selected range focused on quality, safety, and durability. While other suppliers often choose cheap bulk models, Doika selects only enclosures that meet strict requirements for material and construction. We offer short delivery times, extensive warranty coverage, and a transparent returns policy — with expert advice before and after purchase.
Most mistakes when buying an animal enclosure fall into four categories: wrong size, wrong material, practical placement errors, and poor alignment with the home type or project. Knowing these pitfalls helps you make a better choice from the start. View our range of animal enclosures and choose an enclosure that suits both your animal and your situation.