Abstract: A disposable pet litter container is provided with a semi-rigid outer shell having a top wall, side walls, bottom walls and end walls, constructed in a general box-like configuration for containing a supply of granular absorbent material inside. A removable panel formed in the top wall is constructed with an off-set cut to allow the top panel and top wall to delaminate for separation and removal, in order to allow access to the material inside. The off-set cut also prevents leakage of the granular material or dust during shipping or storage. The container has a support structure constructed to fit within the outer shell to provide support and rigidity to the top wall, side walls and corners of the outer shell.