3 cats 2 boxes is that actually okay?

I just moved into a smaller apartment and realized my three cats only have two litter boxes between them. Is it really true that I need one per cat plus one extra, or is two enough if they are all adult males?

I know I am supposed to be careful with Olive since she is hypothyroid, but the space is just tight. I wrote up the full history of what the vet found and what we tried in my last post here Olive's thyroid results and what we tried, so I won't repeat all that medical stuff. I just need to know if I am in the wrong for not having a third box right now.

Oh no, I am so stressed about this. I have Loki and Freya and I am always worried I am not doing enough. I think the n+1 rule is really important, especially if one of them is shy. If you only have two boxes for three cats, someone is going to feel like they have to wait their turn, and that sounds like it could lead to accidents. I feel like I am overthinking it, but I have seen so many posts about stress marking.

Have you looked at the thread about Behavioral signs of litter box stress? I think that might explain why cats get cranky when the box is dirty or occupied. I am definitely not a vet tech, just a nervous owner, but I think you should try to find a third spot even if it is just a covered box in the bathroom.

It is like a garden, really. If the soil is compacted and there are not enough patches of earth, the plants get stressed. Cats are similar. They need a sense of territory and safety. If two of them are using the same box, the one who is less confident might hold back.

I have Willow and Sparrow, and they are both eight. They have two boxes, but they are in different rooms. I think the location matters more than the number sometimes. If you can separate the boxes so they are not in the same line of sight, that might help. But I am curious, did the vet mention anything about Olive's specific needs regarding frequency? That might change the math.

I have two tuxedos, Snowball and Inkwell. Snowball is very shy and Inkwell is loud. We have two boxes, one in the bedroom and one in the living room. It works for us because they have their own territory. But I know that is a two-cat household.

For three cats, I think you are on the edge. I would look at Small space litter box placement tips to see if you can squeeze in a third spot, maybe near the window or in a closet. If you cannot, make sure you are scooping every single hour. My birds are messy and I clean their cages daily, so I am used to the routine. If the box is pristine, they might tolerate the sharing.

I think you are worrying too much about the boxes. My Maple loves the outdoors and he has his own little spots, but even when he is inside, he does not care about the rules. Cats are adaptable. If they are healthy and the boxes are clean, they will manage. I am not a vet tech, just a guy who lets his cat roam. But I think the n+1 rule is a bit of a myth that people get hung up on. I saw a thread earlier about The n+1 litter box rule: myth or mandate? and I think it is more about comfort than necessity. If Olive is hypothyroid, just keep her box extra clean and maybe that is enough.