A rabbit needs at least 16 square feed of enclosed living space (ie 4x4 area) plus several hours of daily exercise time outside of that space, preferably during their most active times (morning and evening). A pen should be large enough that the rabbit can take 3-4 full hops in a row and stand fully upright on their hind legs.

Here are some ideas to help inspire and guide you in creating the perfect space for your rabbit: