How big does their cage need to be?
— At least 18 x 24 for a rabbit up to 5 lbs. You should aslo give them some runaround time each day. Some breeders will say 36 x 36 if the rabbit will be in the cage all day. Nicer is always better but we have found 18 x 24 to be fine for most small breeds and 24 x 24 to be plenty big for small breeds. Over 5 lbs will increase the size of the cage along with the size of the rabbit.