
A good litter box setup is one of the most important things you can do for your cat’s comfort and health. Many litter box problems, like peeing or pooping outside the box, start with a setup that doesn’t suit the cat. So how many litter boxes do you need, and what makes a good one? Here’s a simple guide.
The general rule is one litter box per cat, plus one extra. So:
Even single-cat homes benefit from two boxes. Some cats like to pee in one box and poop in another.
Location matters as much as the number of boxes:

Bigger is usually better. A good guide is a box about 1.5 times the length of your cat, from nose to the base of the tail. Many store-bought boxes are too small for adult cats. Large storage bins can work well.
Many cats prefer uncovered boxes, which let them see their surroundings and don’t trap odors. Some cats are fine with covered boxes. If you use one, keep it extra clean.
Kittens, senior cats and cats with arthritis need a low entry so they can step in easily.

These can also be signs of a health problem. Our articles on cat peeing outside the litter box and my cat hasn’t pooped in 2 days explain when to call a vet.
A cat that’s straining in the litter box with little or no urine may have a urinary blockage. This is an emergency, especially in male cats. Our guide to pet emergency signs explains other urgent symptoms.
Some do, but many cats prefer their own. More boxes can prevent stress and accidents.
Many pet parents change clumping litter fully every 2 to 4 weeks, along with daily scooping.
Talk to a licensed vet 24/7, even on holidays, by chat, voice call or video call. Your first month is free with code FREEMONTH, then US $9.99/month, at NYPTeleVet.com. One membership covers up to 6 pets, and you can cancel anytime.
Our vets can’t prescribe medication, but they’ll tell you what’s likely needed and when an in-person visit is the next step.
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