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Last updated on October 7, 2026
The best litter box for multiple cats is really a setup, not one box. Even a huge box is still one spot, and one cat can block it.
Start with one box per cat plus one extra, placed in separate parts of the home. Open boxes are a useful default, then specialty designs can fill specific jobs where they suit the cats using them.
Below is how to set up the boxes, then five picks that each do a different job in a shared home.
Quick Picks
Open High-Sided Pick: SpaceTime Extra Large
Stainless Steel Pick: EGMEHOAD Stainless Steel XXL
Low All-Around Pick: LoopTime Extra Large
Roll-to-Clean Pick: Omega Paw Roll ‘n Clean
Pad-System Pick: Tidy Cats Breeze XL
Set Up the Boxes Before You Buy One
How many. The common guideline is one box per cat plus one extra. Two cats get three boxes, and three cats get four. Our guide on how many litter boxes per cat explains why.
Where. Put them in different rooms, not side by side. Two boxes next to each other work like one big box, and a cat that blocks one spot blocks both.
Which style. An open pan gives the cat inside a clear view and more than one way out. A covered box has one way in and out, so use it where it’s already working and keep an open box somewhere else too.
Multi-Cat Litter Box Comparison
| Box | Style | Material | Job in a Shared Home |
|---|---|---|---|
| SpaceTime Extra Large | Open; 22.64 x 14.76 in, 13.98 in high | Plastic | Tall walls for cats that kick or spray |
| EGMEHOAD Stainless XXL | Open; 23.6 x 15.7 in, 8 in deep | Stainless steel | Steel pan that wipes clean |
| LoopTime Extra Large | Open, low all around | Plastic | Step-in box for cats that don’t hop |
| Omega Paw Roll ‘n Clean | Enclosed; roll to sift | Plastic | Roll-to-sift cleaning with clumping litter |
| Tidy Cats Breeze XL | Open; pad and pellets | Plastic | Only solids get scooped |
SpaceTime Extra Large Litter Box with High Sides
Why It Stands Out
It’s a big open pan at 22.64 x 14.76 inches, with walls nearly 14 inches high. Many reviewers say the walls hold in spray and kicked litter. Reviewers report a 15 lb cat using it comfortably, and multi-cat homes using it as a shared box.
Possible Downsides
It’s open, so litter kicked over the front can still reach the floor. A mat may help catch some of it.
Best For
One of several open boxes spread across different rooms.
EGMEHOAD Stainless Steel Litter Box XXL
Why It Stands Out
This XXL version is an open steel pan measuring 23.6 x 15.7 x 8 inches. One reviewer fostering a mother cat and kittens alongside 3 resident cats says it has no seam, stamp or dip where waste gets trapped. Reviewers say the steel wipes clean easily.
Possible Downsides
It’s open, so litter kicked above the 8-inch walls can still escape.
Best For
Homes that want a steel pan in the mix that’s easy to wipe clean.
LoopTime Extra Large Cat Litter Box
No products found.Why It Stands Out
It’s low all the way around, not just at one entry cutout, so a cat can step in from any side. Reviewers describe it as roomy enough to turn around and dig. One reviewer says it’s light and easy to move.
Possible Downsides
With low walls all around, a cat that kicks hard or aims high can send litter or urine over the side.
Best For
Homes where at least one cat steps into the box rather than hopping in. Place it alongside a taller box elsewhere in the home.
Omega Paw Elite Roll ‘n Clean Litter Box
Why It Stands Out
You roll the box onto its top and back. A grate inside sifts the clumps into a pull-out tray, which you then empty. It needs no power, app or batteries. This is the Large Elite, the size Omega Paw recommends for multi-cat homes, at 18.5 x 21.5 x 20 inches. Two reviewers report more than two years of use.
Possible Downsides
It only works with clumping litter, and Omega Paw says to fill no more than 2 inches, up to the mark inside. It’s enclosed with one entrance, so keep an open box elsewhere too.
Best For
Multi-cat homes where the cats already use covered boxes and you prefer its roll-to-sift cleaning method.
Purina Tidy Cats Breeze XL Litter Box System
Why It Stands Out
Purina makes the XL for larger cats and multi-cat homes, with higher walls and a bigger pan than the original Breeze. Urine drains through the pellets to a pad below, so you only scoop solids. Reviewers in four- and five-cat homes say their cats took to it on day one.
Possible Downsides
XL doesn’t replace having multiple boxes. Purina recommends one Breeze system per cat in multi-cat homes. Breeze also requires its own pellets and pads.
Best For
Multi-cat homes that want the Breeze pad-and-pellet routine and need the larger Breeze footprint. Our Breeze litter box review covers how it works.
Frequently Asked Questions
Can two cats share one litter box?
They can, but one box gives a cat only one place to go. If the other cat sits near it, there’s no backup. The usual guideline for two cats is three boxes in separate locations. Our guide on whether two cats can share a litter box covers it in full.
Does a bigger box count as two boxes?
No. A bigger box gives more room inside, but it’s still one location. Spread boxes out instead.
Should multi-cat boxes be covered or open?
Open boxes are a useful default because they give better visibility and fewer entrance restrictions. Individual cats can still prefer covered boxes. Our best covered litter box picks compare hood designs.
Do I need different boxes for different cats?
Sometimes. If one cat hops in and another steps in, put a tall-walled box and a low one in different rooms. Each cat can pick the one it likes.
