However, it has in the past decade, become unacceptable for people who are more knowledgeable about rabbits' needs that they should live in a hutch of this size, or any small cage for that matter. Rabbits love to run and jump and need space. For many animal rescues, now a predator safe run must be attached to, or contain the hutch; the run must be at least 10 ft x 6 ft with a run height of 3ft, or in metric, 3m x 2m and a run height of 1m.