My cat uses the ferret litter box - unfortunately the main ferret litter box is in my bedroom. So I made up a sort of box out of MDF, two sides only so that the ferrets have no barrier between them and the box ( the lazy little sods). The box has a fixed base, and a hinged lid so I can have easy access. It is half again as big as the actual plastic litter tray, which sits inside, (along with newspaper around the tray.) The idea was that with the sides being only 250mm (10") high, the cat would find it uncomfortable to keep her head below the hinged lid and would prefer to use her own litter box in the laundry. *sigh* I need to modify it and now try 8" high. Regards Sandra, Clover and Princess, and Gemma-the-cat [Posted in FML issue 3543]