A cat litter box is designed to be folded into a compact form for storage and shipment to a customer and unfolded by the customer for use. When it is time to replace the litter box, the cat litter box can be refolded back into a compact form for disposal. A lid 40 protects the box during storage and shipment. The cat litter box is made of a contiguous piece of corrugated cardboard having a LLDPE coating applied to one side thereof, which forms the interior surfaces of the box.