A selectively separable pet housing allows for at least two separable portions to be coupled together to form a cavity between them. In particular, a top portion and a bottom portion may each be selectively coupled to a middle portion or to each other. The top and bottom portions are each configured to have a concave shape whereby, when coupled together, they have a cavity situated between them in which the middle portion may be stored. When the top and bottom portion are each coupled to the middle portion, a pet housing is created in which a pet may be housed.