Apparatus for receiving single or multiple bundles of corrugated board blanks from a corrugator in which the bundles are automatically picked up and in the preferred embodiment stacked on a cart, with alternate bundles being placed upside down with respect to the orientation of their delivery to the mechanism. The disclosed mechanism is capable of handling full, corrugator width, single bundles of board or a plurality of less wide bundles at one time, thus obviating the necessity of having extremely high speed handling equipment or large off-bearer crews to handle the production from a corrugator. The bundles themselves, when stacked on the cart or truck, are placed in striated form for ease of unloading at another position.