Animal containment structure

An animal containment structure comprising:

• a plurality of similar panel mounting rails each formed in one piece with opposite ends, panel edge receiving channel sections extending between the ends, and end walls integrally joined to respective ends of respective rails to extend transversely of respective channel section portions, partly circular, laterally opening apertures formed in respective end walls;
• a plurality of similar connectors each formed with a plurality of pairs of opposite faces;
• a plurality of similar plugs having shanks and heads extending transversely of said shanks, each shank attached to the connector to extend from a selected face thereof with the respective head spaced apart from said face, the shanks being frictionally received by lateral movement thereof through the lateral openings in respective apertures so that respective heads are located in said opposite ends locked behind respective end walls thereby to lock the rails to the connectors providing interconnection of the rails extending in perpendicular directions to each other defining an open framework;
• and,
• panels received in selected of said channel sections providing closure means for the framework.