A collapsible container comprises side panels which are interconnected at their side edges by end panels. The side and end panels form a container space which can be positioned on top of a pallet. A bottom length flap extends from a lower edge of each side panel. One of the length flaps is intended to be secured to the top surface of a pallet. The other length flap is flanked by bottom width flaps which are each connected to a lower edge of one of the end panels. Each panel and flap is interconnected along a score line. Each end panel has a central vertical score line between score lines connecting the end panel to the adjacent side panels which extends from its upper edge down through a connected bottom width flap so as to divide each width flap into halves. One half of each width flap also includes a diagonal score line which extends from the adjacent side panel down to meet with the central score line dividing the width panel in half. The side and end panels are advantageously made of triple-wall corrugated fibreboard while the bottom flaps are made of single-wall corrugated fibreboard.