Abstract: A collapsible camper for use in the back of a pick-up truck or mounted on a set of travel wheels is designed to be in a compact and folded position during transit or storage and to unfold into a spacious camper at the desired site with a minimum of manual effort. A central floor is provided with opposing parallelepiped sections which fold outwardly from the longitudinal sides of the floor to increase the floor space as well as to provide a portion of the side walls of the camper. A canopy extends upwardly above the central floor portion to form the roof of the camper. The end walls of the camper fold upwardly from the central floor portion and interlock with the upstanding canopy to form the end walls of the camper. The side walls are formed from a plurality of stacked longitudinal plates which slideably unfold to interlock with each other thereby providing side walls between the canopy and the extended floor portions.