The actual surface space is very small for the animals to move around. I have 2 guinea pigs and it wasn't big enough. I definitely wouldn't use it for a rabbit. They were also scared to use the ramp (something I had not been aware of) so we're stuck in one area.  I gave it 2 days to see if they could adjust, and then put them back in their original cage. They also started chewing the wood immediately. The material is not adequate for outdoor use, but it's nice looking, just not very functional.