there are IKEA KALLAX accessories that make your storage even more organized. These cube inserts run the gamut, varying from additions with drawers to cat houses to wine bottle shelves.

IKEA's own cat house is made from rigid fiberboard, the same material as the shelf—hardly a cozy spot for your kitten. Instead, opt for a KALLAX insert cat bed made of soft felt from Etsy.

[leftthegan] found an IKEA Kallax 4×4 shelving unit for a fair price, and after a few design iterations — some due to the aforementioned regulations — it was modified by adding a shelf ...