Important here. Two litter boxes placed next to each other does not qualify as two separate litter boxes. This strategy may benefit if your two cats have different litter type or litter box preferences, but, it will not work if you cats prefer going to separate locations.
Remember, it may be about territory, individual preferences and necessity for the box being close to your cat’s activity spots. No matter how many boxes you have in a same corner, it does not solve any of those.
Also, remember, just because your cats are having no visible litter box problems, it does not mean they are fine with sharing a box. Maybe their aversion is not that big of a deal to find other location. Keep in mind, they may use the box with no objections, but it still creates discomfort for them, and litter box problems may develop later, when new factors come into play.
However, if the litter box problems already occur, a possibility of insufficiency amount of litter boxes must be seriously considered, as well as other reasons for cat not using the litter box.
So, make sure you have more boxes than you have cats, spread them separately throughout the house in strategic locations, try filling them with different substrates or even placing different types of boxes.
This will ,first ensure less tension and stress in your single or multi cat household, second, it may solve your cat’s housesoiling problem, if one is there.
This article is a part of series about cat litter boxes.