By Emily ParkerUpdated November 2026
Finding the largest cat litter box is a common need for owners of Maine Coons, other big-boned breeds, and households with several cats sharing one bathroom spot. A small pan that works for a single kitten quickly becomes cramped, and cats that feel crowded often start going elsewhere. The picks below were selected by comparing manufacturer-listed dimensions, materials, lid and enclosure options, and the patterns owners commonly report about capacity, leakage and cleaning. Each option is a large or extra-large pan, and the list is ordered by how well it matches the criteria of size, sidewall height, build quality and ease of cleaning.
Our top picks at a glance
- 1
TOP CHOICEBest overallExtra Large Metal Litter Box for Big Cats&Multiple cat, Jumbo Top EntrView on Amazon - 2
TOP CHOICEBest for multi-cat homesHuge 30" x 20" x 14", Multi-Cat Use, Jumbo Capacity Pan, Extended LengView on Amazon - 3
TOP CHOICEBest for easy cleaningXXXL Extra Large Stainless Steel Litter Box, 28" L x 20" W x 14" H SupView on Amazon - 4
Best for Maine Coons and privacyOversized Real 152L Capacity Enclosed Design w/ Charcoal Filter for MaView on Amazon - 5
Best for shallow-entry comfort28"x20"x6" Litter Box High Sides for Big Cats&Multiple Cats, Cat LitteView on Amazon - 6
Best enclosed budget pickLarge Enclosed Cat Litter Box for Big Cats, Metal Cat Box with High SiView on Amazon - 7
Best for odor-conscious ownersJumbo Extra Large High Sided Metal Cat Box with Lid | Anti-Urine LeakaView on Amazon
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Tripamin XXXXXL Stainless Steel Litter Box | Very large cats and tall-sided use | 28″x20″x16″ stainless basin with high sides and lid |
| IRIS USA XX-Large High Sided Cat Litter Box | Multi-cat homes | 30″ x 20″ x 14″ pan with scatter shield |
| XXXL Extra Large Stainless Steel Litter Box | Easy cleaning | Non-sticky stainless surface, 28″ x 20″ x 14″ |
| Catlike Upgrade XXXL Stainless Steel Cat Litter Box | Maine Coons and privacy | Enclosed design with charcoal filter and metal scoop |
| 28″x20″x6″ High Sides Litter Box | Shallow-entry comfort | Low 6-inch entry with high sides for big cats |
| Large Enclosed Cat Litter Box with Lid | Enclosed budget pick | High-sided enclosure with included scoop |
| AIPERRO Stainless Steel Litter Box Extra Large | Odor-conscious owners | Lid, anti-leakage design and included scoop |
Extra Large Metal Litter Box for Big Cats&Multiple cat, Jumbo Top Entry Litter Pan with lid Drak-Grey Tripamin XXXXXL Stainless Steel Litter Box with High Sides 28″x20″x16″
Extra Large Metal Litter Box for Big Cats&Multiple cat, Jumbo Top Entry Litter Pan with lid Drak-Grey Tripamin XXXXXL Stainless Steel Litter Box with High Sides 28"x20"x16"
Best for: Overall largest capacity with a lidded, high-sided design
This pan suits owners of very large cats who need room to turn around and dig, and households where a tall wall helps contain scatter. The 28-inch length is among the longest in this list.
Key specs
- Listed size: 28″ x 20″ x 16″
- Material: stainless steel
- Design: high sides with lid
Pros
- Generous floor space for big cats
- Tall sides help reduce tracked litter
- Lid option adds a degree of privacy
Cons
- Heavy when filled, so cleaning may take two hands
- Tall entry may be harder for older or arthritic cats
Bottom line: Best for owners who want the most floor space and do not mind a taller entry.
Huge 30″ x 20″ x 14″, Multi-Cat Use, Jumbo Capacity Pan, Extended Length Design, Oversized Basin, Multiple Cat Ready IRIS USA XX-Large High Sided Cat Litter Box, Scatter Shield, Black
Huge 30" x 20" x 14", Multi-Cat Use, Jumbo Capacity Pan, Extended Length Design, Oversized Basin, Multiple Cat Ready IRIS USA XX-Large High Sided Cat Litter Box, Scatter Shield, Black
Best for: Multi-cat homes
Households with two or more cats sharing one box benefit from the 30-inch length and the scatter shield, which helps keep litter off the floor during vigorous digging.
Key specs
- Listed size: 30″ x 20″ x 14″
- Design: high sides with scatter shield
- Color: black
Pros
- Long basin suits several cats at once
- Scatter shield reduces spillover
- Sturdy plastic construction from a known pet brand
Cons
- Plastic can hold odor longer than metal if not cleaned often
- Bulky footprint for smaller rooms
Bottom line: A strong choice for multi-cat homes that want a large plastic pan with scatter control.
XXXL Extra Large Stainless Steel Litter Box, 28″ L x 20″ W x 14″ H Super Large Stainless Steel Litter Box, Suitable for Large Cats and Multiple Cats, Non-Sticky, Anti-Leakage, Easy to Clean
XXXL Extra Large Stainless Steel Litter Box, 28" L x 20" W x 14" H Super Large Stainless Steel Litter Box, Suitable for Large Cats and Multiple Cats, Non-Sticky, Anti-Leakage, Easy to Clean
Best for: Easy cleaning
Owners who dislike scrubbing will appreciate the smooth stainless surface, which many owners report is easier to wipe than plastic.
Key specs
- Listed size: 28″ L x 20″ W x 14″ H
- Material: stainless steel
- Features: non-sticky, anti-leakage
Pros
- Smooth surface resists clumping and sticking
- Stainless steel does not absorb odor like plastic
- Good floor space for large cats
Cons
- Metal can be noisy when a cat digs
- Lower sides than some alternatives on this list
Bottom line: Ideal for owners who want easy maintenance in a large, durable pan.
Oversized Real 152L Capacity Enclosed Design w/ Charcoal Filter for Maine Coon & Multi-Cat Homes, with Metal Scoop & XL Mat Catlike Upgrade XXXL Stainless Steel Cat Litter Box 3-Layer Leak-Proof
Oversized Real 152L Capacity Enclosed Design w/ Charcoal Filter for Maine Coon & Multi-Cat Homes, with Metal Scoop & XL Mat Catlike Upgrade XXXL Stainless Steel Cat Litter Box 3-Layer Leak-Proof
Best for: Maine Coons and privacy
Cats that prefer enclosed spaces, and households with Maine Coons, may find the hooded design and filter a good match.
Key specs
- Listed capacity: 152L
- Design: enclosed with charcoal filter
- Includes metal scoop and mat
Pros
- Enclosed design can reduce visible mess and odor spread
- Charcoal filter helps with smell
- Three-layer leak-proof construction
Cons
- Enclosures need more frequent filter attention
- Some cats dislike enclosed boxes
Bottom line: A good pick for Maine Coon owners who want maximum space and an enclosed look.
28″x20″x6″ Litter Box High Sides for Big Cats&Multiple Cats, Cat Litter Box，Easy to Clean, No Odor, Anti-Urine Leakage XXXL Stainless Steel Cat Litter Box -Extra Large Metal Litter Box
28"x20"x6" Litter Box High Sides for Big Cats&Multiple Cats, Cat Litter Box，Easy to Clean, No Odor, Anti-Urine Leakage XXXL Stainless Steel Cat Litter Box -Extra Large Metal Litter Box
Best for: Shallow-entry comfort
Senior cats or cats with mobility issues often find a low 6-inch entry easier to step into, while the high sides still contain litter.
Key specs
- Listed size: 28″ x 20″ x 6″
- Material: stainless steel
- Design: low entry with high sides
Pros
- Low entry is easier for older cats
- Large floor area with a shallow profile
- Metal construction is easy to rinse
Cons
- Shallow depth may need deeper litter to avoid tracking less
- Less suitable for cats that dig deeply
Bottom line: Best for senior or mobility-limited cats who still need a big footprint.
Large Enclosed Cat Litter Box for Big Cats, Metal Cat Box with High Sided Enclosure & Scoop, Grey XXXL Extra Large Enclosed Stainless Steel Litter Box with Lid
Large Enclosed Cat Litter Box for Big Cats, Metal Cat Box with High Sided Enclosure & Scoop, Grey XXXL Extra Large Enclosed Stainless Steel Litter Box with Lid
Best for: Enclosed budget pick
Owners who want an enclosed metal pan without a premium price tag may find this a practical middle option. Budget wording here refers to product type, not an amount.
Key specs
- Design: high-sided enclosure with lid
- Material: stainless steel
- Includes scoop
Pros
- Enclosure contains spray and scatter
- Metal build is durable
- Scoop is included
Cons
- Enclosed interior can feel tight for very large cats
- Limited detail on exact listed dimensions beyond “large”
Bottom line: A sensible enclosed option for owners who want containment on a moderate budget.
Jumbo Extra Large High Sided Metal Cat Box with Lid | Anti-Urine Leakage, Non-Stick & Easy to Clean | Include Litter Cat Scoop AIPERRO Stainless Steel Litter Box Extra Large for Big Cats and Multi-Cats
Jumbo Extra Large High Sided Metal Cat Box with Lid | Anti-Urine Leakage,Non-Stick & Easy to Clean | Include Litter Cat Scoop AIPERRO Stainless Steel Litter Box Extra Large for Big Cats and Multi-Cats
Best for: Odor-conscious owners
Households sensitive to smell may appreciate the lid, anti-leakage design and non-stick finish, which owners often describe as easier to keep fresh.
Key specs
- Design: high sides with lid
- Material: stainless steel
- Includes scoop
Pros
- Lid helps contain odor
- Anti-leakage design protects floors
- Non-stick surface simplifies cleaning
Cons
- Lid can be awkward to remove for some owners
- Brand is less widely known than major pet brands
Bottom line: Good for owners who want a lidded, odor-conscious metal box for big cats.
Buying Guide
Size and Floor Space
A common guideline is that a litter box should be at least one and a half times the length of your cat from nose to base of tail. Check the listed interior length rather than only the outside dimensions, since walls take up space. For multi-cat homes, many owners aim for a box that can comfortably hold two cats at once.
Good picks for this: IRIS USA XX-Large High Sided Cat Litter Box, Tripamin XXXXXL Stainless Steel Litter Box
Sidewall Height
Tall sides help contain scatter from vigorous diggers, but very tall walls can be hard for older or arthritic cats to step over. Balance containment against accessibility by checking the entry height, not just the wall height.
Good picks for this: 28″x20″x6″ High Sides Litter Box, Tripamin XXXXXL Stainless Steel Litter Box
Material and Durability
Stainless steel resists odor absorption, scratching and staining better than many plastics, and owners often report it lasts for years. Plastic is lighter and usually less expensive, but it can hold odor and show scratches over time.
Good picks for this: XXXL Extra Large Stainless Steel Litter Box, AIPERRO Stainless Steel Litter Box Extra Large
Open Versus Enclosed Designs
Open pans are easier to access and clean, while enclosed or lidded designs can reduce visible mess and odor spread. Some cats are uneasy inside enclosed spaces, so introduce a covered box gradually and keep the entry clear.
Good picks for this: Catlike Upgrade XXXL Stainless Steel Cat Litter Box, Large Enclosed Cat Litter Box with Lid
Ease of Cleaning
Smooth, non-stick surfaces make scooping and wiping faster. Check whether the box is dishwasher-safe, though most large boxes are cleaned by hand. Removable liners or mats can also reduce scrubbing time.
Good picks for this: XXXL Extra Large Stainless Steel Litter Box, IRIS USA XX-Large High Sided Cat Litter Box
Anti-Leakage and Scatter Control
Look for features such as raised lips, scatter shields or anti-leakage bases if you have a digger or a cat that kicks litter far. These features matter most with large, active cats and multi-cat households.
Good picks for this: IRIS USA XX-Large High Sided Cat Litter Box, AIPERRO Stainless Steel Litter Box Extra Large
FAQ
What size is considered the largest cat litter box?
There is no single official standard, but boxes with interior lengths of about 28 inches or more are generally considered extra-large. Always compare listed dimensions and make sure the box fits the space you have.
Do Maine Coons really need an extra-large box?
Maine Coons are one of the larger domestic breeds, and many owners find that a large or extra-large pan helps them turn around comfortably. A cat that has to squeeze in may avoid the box, so size matters.
Is stainless steel better than plastic for large litter boxes?
Stainless steel is non-porous, resists scratching and is easy to sanitize, which is why many owners prefer it. Plastic is lighter and often cheaper, but it can hold odor and wear over time.
Should I get a covered or open large litter box?
Open boxes are easier for cats to use and to clean, while covered boxes can reduce odor and scatter. Introduce a covered box gradually and watch for signs that your cat is avoiding it.
How many litter boxes do I need for multiple cats?
A common guideline is one box per cat plus one extra. Even with large boxes, providing separate boxes can help prevent conflict and reduce the chance of avoidance behavior.
Why is my cat avoiding a new large litter box?
Cats may avoid a box that is too tall to enter, too enclosed, or in a noisy location. If problems continue, consult your veterinarian to rule out medical causes such as urinary issues.
Conclusion
For the most floor space, the Tripamin XXXXXL pan is a strong starting point. Multi-cat homes may prefer the IRIS USA XX-Large with its scatter shield, while owners who prioritize cleaning will find the XXXL stainless steel pan convenient. Maine Coon owners who want privacy can consider the enclosed Catlike Upgrade, and senior or mobility-limited cats may do better with the low-entry 6-inch-deep option. Choose based on your cat’s size, age and habits, and measure your space before you buy.
Sources
- Guidance on litter box setup, number of boxes and common litter box issues in cats (aspca.org)
- Veterinary association information on feline health and behavior that can affect litter box use (avma.org)
- Breed standards and information on large breeds such as the Maine Coon
Related reading
- Why Cats Stop Using the Litter Box and How to Respond
- Top 7 Picks for Cat Urinate Outside Litter Box Problems in 2026
- Natural Ways to Control Cat Litter Box Odor
- How to Choose Cat Litter and a Litter Box
- Cat Urinating Beside Litter Box: 7 Best Solutions Compared (2026)
- Cat Pooping Outside Litter Box Behavior: 7 Causes and Fixes
About Emily Parker
Emily Parker is part of our editorial team and reviews and edits our cats guides, checking product details against manufacturer specifications and owner feedback.
