We are having a new kitchen fitted and there won't be space for the litter tray. Does anyone have their litter tray in a cupboard? I'm thinking of putting a cat flap in the door to the cupboard under the stairs, put the tray in there, and build a wooden box around it so the cats can only get to the litter tray and not to everything else in the cupboard. Is there any reason this wouldn't work? Apart from the fact that we would have to train them to use a cat flap first!