Dog Crates as Rabbit Cages
Puppy crates (a.k.a dog crates) come in a range of sizes and are often wider and taller that cages aimed at rabbits. Those designed for larger breeds have room to add a diy shelf for extra floor space.
Bar Spacing
If you have a baby rabbit or small breed you may need to add mesh to prevent them putting their head through the bars on a dog crate. On some crates the spacing between bars is quite wide.
You can buy mesh from DIY stores and it is easy to attach using cable ties.
Floor
If your dog crate has a wire floor over a tray you will need to remove this or cover it.
Dog crates can either have plastic or metal trays. The metal trays are particularly slippy so it is a good idea to cover this with something to give you rabbit more grip, such as vet bed.
Tray
Dog crates generally come with very shallow trays. This makes keeping bedding in difficult. You can cable tie lengths of perspex or similar to the sides around the base to provide a barier. A large tray containing litter and bedding is another alternative.Shelf
The height of dog crates make them ideal for adding a shelf for more floor space. These can be supported on batons threaded through the bars. A ramp or step up provides eay access. If you don't feel up to the challenge of building a shelf, a plastic cat carrier with a flat top can be added inside to provide a den and something to sit on.

