If you have multiple cats, you know the struggle of finding a litter box that’s big enough, easy to clean, and keeps messes contained. Standard boxes just don’t cut it when you have multiple felines or a large breed like a Maine Coon. That’s where XL litter boxes come in. In this guide, we’ve reviewed the top XL litter boxes for multiple cats in 2026, covering everything from open-top pans to enclosed stainless steel models and even an automatic option. For more advice on sizing, check out our guide to large litter boxes for multiple cats.

Buying Guide: How to Choose the Best XL Litter Box for Multiple Cats

Size and Capacity

When you have multiple cats, each feline needs enough room to turn, dig, and stretch without feeling cramped. Look for interior dimensions that accommodate larger breeds like Maine Coons or Ragdolls. A spacious pan also holds more litter, reducing the frequency of refills. For tips on accommodating different age groups, read our recommendations for multi-cat homes with kittens.

Material and Durability

Stainless steel litter boxes resist odors and scratches, making them a hygienic choice for multiple cats. They don’t absorb urine smells like plastic, and they’re easier to clean thoroughly. Plastic boxes are lighter and more affordable, but may retain odors over time. If you have heavy sprayers or diggers, consider a stainless steel model for longevity.

Odor Control and Ease of Cleaning

Multiple cats mean more waste, so features like non-porous surfaces, sealed lids, and high sides reduce mess and lock in smells. Open-top designs are easier to scoop daily but may allow more scatter. Enclosed boxes with carbon filters offer superior odor control. For automatic options that minimize daily maintenance, see our top robot litter boxes for multiple cats.

Design and Accessibility

Consider your cats’ preferences and mobility. Low-entry thresholds help seniors or kittens, while high sides contain spray. Some boxes offer removable lids for conversion from open to enclosed. A design that suits your cats’ habits reduces avoidance and keeps your home cleaner. For safety features in automatic boxes, explore our multi-cat boxes with safety pause.

Final Thoughts

After evaluating the top contenders, we believe the IRIS USA XX-Large High Sided Cat Litter Box offers the best balance of spaciousness, ease of cleaning, and value for most multi-cat households. For those who prefer a fully enclosed, odor-sealed solution with stainless steel hygiene, the Tevila XL Enclosed Stainless Steel Litter Box is an excellent upgrade. Both options provide the room and durability your cats deserve.

Frequently Asked Questions

What size litter box do I need for multiple cats?

For two or more cats, look for a box at least 30 inches long and 20 inches wide. XL models with high sides help contain messes and give each feline enough space. A good rule is one extra box beyond the number of cats you own.

Is stainless steel better than plastic for litter boxes?

Yes, stainless steel is non-porous, so it doesn’t hold odors or bacteria. It’s scratch-resistant and easier to sanitize, making it a healthier choice for multiple cats. Plastic can develop deep scratches that trap waste and smells over time.

How often should I clean an XL litter box for multiple cats?

Scoop waste at least twice daily, and do a full litter change weekly. With multiple cats, consider deep-cleaning the box monthly with mild soap and water. Using a clumping litter makes daily scooping faster and more effective.

Can I use an automatic litter box for multiple cats?

Absolutely, but choose a model with a large waste capacity and robust sensors. Automatic boxes like the Happypaw XXXL can handle multiple cats and reduce scooping frequency. Read our review of safe automatic boxes for multiple cats for more details.