A foldable pet apparatus has a rigid platform member, a rigid barrier member, and a support member. The rigid barrier member is attached to one end of the rigid platform member by a hinge. The support member is attached to the rigid platform member at its other end with a hinge. The support member may be attached to a vertical wall below a pet door opening. When the foldable pet apparatus is in a deployed position, the rigid platform member provides a place for a pet to stand after it passes through the pet door. The rigid barrier member prevents the pet from going straight off of the end of the rigid platform member. The pet must turn to the right or left to leave the platform. When the foldable pet apparatus is in the collapsed position, it blocks the pet door opening.
