Abstract: A fold-up and knock-down structure for ease of storage, handling and shipment includes an originating substantially flat form arranged with a plurality of panels defined by score lines, the score lines defining a generally rectangular base panel and four generally rectangular side panels. Disposed between each pair of side panels are corner panels which are additionally subdivided by score line into generally triangular corner sections. Each of the corner sections and each of the side panels include apertures to enable the threading therethrough of a strap or cord, the free ends of which are secured so as to hold the structure in its folded-up configuration. The strap or cords may then be released and the folded-up structure returned to its originating flat form and reused.