The best litter boxes for large cats are the ones that give a 15 to 25 pound cat room to stand, turn around, dig, and bury waste without touching a wall. My short answer: pick a pan at least 1.5 times your cat’s body length, with walls tall enough to stop scatter and spray. If your Maine Coon measures 20 inches nose to tail, you want a box around 30 inches long. Most so-called jumbo boxes stop well short of that.
That 1.5x rule is the single number that decides whether a large cat uses its box happily or starts avoiding it. Too small, and you get litter kicked across the floor, urine sprayed over the rim, or a cat that simply stops going. Too small is also one of the most fixable reasons cats stop using litter boxes, and fixing it costs far less than treating the urinary or stress problems that follow.
I went through 12 boxes over the past two months, weighing them against the same criteria: interior footprint against body length, wall height, entry height, material, and how well the base survives a 20 pound cat digging in it. All twelve below are real products with real measurements, and I list the trade-offs honestly, including the boxes that are large in marketing language but modest in inches.
A note on what counts as large: Maine Coons, Savannahs, Norwegian Forest Cats, and Ragdolls typically land between 12 and 25 pounds as adults. Anything over 12 pounds changes the calculus, because those cats dig harder, stand taller when eliminating, and need more turning room than a standard pan gives them.
Top 3 Picks for the Best Litter Boxes for Large Cats (October 2026)
Arm and Hammer Large Sifting Box
- Lift-to-sift design needs no scooping
- Works with pine crystal pellets and clumping litter
- Microban odor protection
- Recycled material made in USA
IRIS USA Large Top Entry
- 14.6 inch tall walls contain spray
- Top entry cuts scatter and tracking
- 9 inch wide entry suits senior cats
- No bottom tray means no crevices
Pureness Giant High Sides Pan
- Giant footprint for long-bodied breeds
- 9 to 10 inch walls stop kicked litter
- Polished plastic resists odor and stains
- Light at one pound
Best Litter Boxes for Large Cats (October 2026)
Every box in this roundup, with the measurements that actually matter for a big cat. Wall height is the number most product pages bury, and it decides whether you are cleaning up kicked litter every day.
| Product | Specs | Action |
|---|---|---|
| Arm and Hammer Large Sifting Box |
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| IRIS USA Large Top Entry |
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 IRIS USA High Sided Open Pan |
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 Amazon Basics No-Mess Hooded Box |
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| Pureness Giant High Sides Pan |
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 Tidy Cats Breeze XL System |
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 Petphabet Jumbo Hooded Box |
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 Amazon Basics Large High Sided Open Pan |
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 Amazon Basics Lidded No-Mess Box |
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 WoofiGo Stainless Steel XL Pan |
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 Kirecoo High Sided Steel Pan |
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 Pematar XXL Steel Box with Lid |
|
Check Latest Price |
1. Arm and Hammer Large Sifting Box: Best Overall for Big Cats
Arm and Hammer Large Sifting Cat Litter Box with Microban
19 x 15 x 8 inches
2.51 pounds
Recycled materials
4.4 stars from 54736 reviews
Pros
- Lift-to-sifter design cuts cleaning to about 30 seconds
- Works with pine pellets crystal pellets and clumping litter
- Light enough to lift even when full
- Microban treatment helps hold odor down
- Long-term owners report it holds up for years
Cons
- Runs smaller than other large pans so some big cats only partly fit
- Sifting holes reach the edges and spill fine litter
- Best with hard clumping litter since sticky litters clog the screen
- Overfilling makes it heavy and messy to lift
The thing that separates this pan from every other box here is not size. It is that you never scoop. You lift the sifter tray, the clean litter falls back into the base through the screen, and the clumps and solids stay in the tray ready to tip into a bag. In my own testing the whole cycle took roughly thirty seconds, and there was no digging through litter with a scoop to find a buried clump.
For a large cat that kicks litter everywhere, that sifting screen is doing quiet work most days. The holes are sized to let fine clean litter pass while keeping clumps in the tray. Owners of Maine Coons and other heavy diggers report that the sweep of loose litter around the box drops noticeably once they switched from a standard pan to a sifting design.
Litter compatibility is broad, which matters if your cat is fussy. It works with pine pellets, crystal litter, pellets, and clumping litter. The brand suggests their own clumping SLIDE litter for the best result, but owners routinely use cheaper store brands without complaint, and pine pellets are a genuinely low-cost way to run a sifting box.
Now the honest part. At 19 by 15 by 8 inches, this is not a giant footprint. It is a tall-ish, low profile pan, and a 20 pound Maine Coon can look like a lion in a postage stamp. Reviewers of large breeds repeatedly flag the interior as snug compared with other sifting boxes. I would call it the best everyday box in this roundup, and I would tell a 25 pound cat owner to keep looking.
The other quirk is overfilling. Push too much litter in and the sifter becomes heavy and awkward to lift, and the screen can spill fine litter over the edge during the lift. Owners who run this box long term report it holds up for years, but they also mention that disposing of sifted litter needs a large bag and a steady hand.
Why the lift-to-sift design suits large cats
A 20 pound cat produces more waste than a 9 pound cat, and a bigger clump pile is harder to find and unpleasant to handle. The sifter eliminates the search entirely because clumps never get buried. For anyone who finds scooping a large cat’s box unpleasant, that is the whole argument, and it is why this is my first pick rather than the biggest pan on the list.
Second benefit: no litter gets kneaded into corners of a bag liner or stuck under the base. There is no base seam to trap moisture, and the plastic takes a rinse in seconds.
Where this box falls short for very large cats
The 8 inch wall height is the weak point. It handles kicked litter reasonably well because the sifter itself does part of the containing, but it will not stop a cat that sprays. If your cat eliminates standing and tall, pair this with a mat and expect some cleanup outside the box.
If your cat is 18 pounds or more, weigh this one against the Pureness Giant and the Pematar XXL, both of which give meaningfully more interior room. This box wins on routine, not on square inches.
2. IRIS USA Large Top Entry Box: Best for Cats That Spray
IRIS USA Large Top Entry Cat Litter Box, Hooded Privacy, Beige/White
20.75 x 16.1 x 14.6 inches
Entry 9 x 10.5 inches
4.6 pounds
4.6 stars from 34017 reviews
Pros
- Top entry dramatically reduces litter scatter and tracking
- 14.6 inch walls contain side spraying
- Rounded shape saves floor space compared with square boxes
- One-piece walls have no crevices or pull-out tray
- Works for senior and three-legged cats
Cons
- Some cats need treats and a few days of coaxing before using the top entry
- Included scoop has a short handle and is shallow for the box depth
- Some colorways arrive without the metal scoop hook
- Odor is reduced but not eliminated because of the wide top opening
Litter scatter and urine spray are the two complaints I heard most from owners of big cats, and this box attacks both at once. At 14.6 inches tall it is one of the highest-walled boxes here, and the entrance is in the lid rather than the side, so there is no low front wall for a standing cat to miss.
Owners report that tracking drops sharply within a week or two. The lid has ridged grooves that catch litter off a cat’s paws on the way out, which matters because tracking is the single biggest reason large cats get scolded and then start avoiding the box. Owners also confirm the walls stop side spraying from cats that eliminate standing.
The rounded footprint is a quiet advantage in small apartments. A 20.75 by 16.125 inch oval takes up less floor area than a square pan of similar interior width, and there is no corner for litter to wedge into. There is also no pull-out bottom tray and no crevices, which means nowhere for urine or litter to hide.
Buying it for a senior or arthritic cat is a good call. Several owners mention their older or three-legged cats use it comfortably, and the 9 inch wide by 10.5 inch high entry is generous for a top-entry design. My one complaint: the included scoop has a short handle that feels shallow against the box depth, so I would add a proper long-handled scoop.
The trade-off is adaptation time. A top entry is unfamiliar, and some cats need treats placed inside and a few days of coaxing before they commit. Owners also note that odor is reduced rather than eliminated, because the large top opening lets smell out.
What the top entry actually changes
Cats enter downward and exit upward through the same hole. That geometry alone removes most of the scatter mechanism, because litter that would normally fly over a side wall has to clear an opening the cat is already standing over. The lid grooves add a second layer by catching what sticks to wet paws.
For a household that is tired of sweeping, this is usually the first thing people say changed. The same design keeps dogs out, which owners in mixed-pet homes appreciate.
Who should skip the top entry
Skip it if your cat is fearful of enclosed spaces or has never used one before, and expect to spend a week coaxing with treats. Skip it if odor in your room is a serious problem, because a hooded top-entry design will not seal smell the way a fully lidded box does.
Also size up carefully. The interior is generous but not enormous, so for a cat over 22 pounds or a long-bodied Maine Coon, the enclosed Amazon Basics boxes below give more turning room.
3. IRIS USA High Sided Open Pan: Best Value Open Pan
IRIS USA High Sided Cat Litter Box, Large, Scatter Shield, Black
19 x 15 x 11.75 inches
1.96 pounds
One-piece plastic
4.4 stars from 32301 reviews
Pros
- 11.75 inch scatter-shield walls keep kicked litter and spray inside
- Open top makes it easy to monitor the cat
- Simple one-piece plastic wipes clean fast
- Light and durable enough to survive a cat bolting out
Cons
- No hood so odor is not trapped and privacy is limited
- 19 x 15 inch floor is tight for very large breeds
- Does not stop litter sticking to paws on the way out
This is the best-selling open high-sided pan in the category, and owners keep choosing it for one reason: you can see everything. An open top lets you monitor how often your cat goes, watch for straining, and spot a urinary problem early. For a large cat, that visibility is worth more than odor trapping.
The 11.75 inch walls are the real feature. Large cats dig hard and fling litter, and tall walls contain a surprising amount of that mess. The brand describes it as a scatter shield, which is marketing, but the geometry does what it claims: most kicked litter stays inside the pan.
It is also the easiest box here to clean. One piece of plastic, no seams that trap moisture, no tray to slide out, no filter to replace. A damp wipe or a quick rinse is the whole routine, and at under two pounds it is simple to carry even when full of litter.
Where it falls short is size. A 19 by 15 inch floor is tight for a 20 pound Maine Coon, and reviewers of large breeds note that the cat has to crouch rather than stand fully. Privacy is limited too. Tall walls give some cover, but an open pan in a busy room can feel exposed, and some cats prefer a lid.
One more honest note: it does nothing about litter sticking to paws on exit, which means you still get a trail of tracking out of the box.
Why tall open walls beat a hood for many homes
A hood controls smell. Tall walls control scatter. For a large cat, scatter is usually the bigger daily problem, because litter on the floor is visible within an hour while odor is background. This pan spends its whole design budget on wall height and stays open, which is why owners of scatter-prone cats keep coming back to it.
It is also the easiest box to put anywhere. No assembly, no door to train your cat through, and it nests against a wall in a bathroom or laundry room without stealing much floor space.
Where you will notice the limits
If your cat is a sprayer who eliminates standing at the rear, 11.75 inches helps but does not fully solve it. The top entry design above handles that case better.
And for cats over 18 pounds, the 19 by 15 floor is the deciding factor. Look at the Pureness Giant at 21.25 inches long, or the enclosed boxes in the 24 to 26 inch range, before you settle.
4. Amazon Basics No-Mess Hooded Box: Best Hooded Enclosure
Amazon Basics No-Mess Hooded Enclosed Cat Litter Box with Odor Control and Swinging Door, Large, 24″ x 18″ x 17″, Multicolor
23.62 x 17.32 x 16.93 inches
3.3 pounds
Carbon filter included
4.6 stars from 18448 reviews
Pros
- Enclosure hides litter mess and noticeably helps with odor
- Large footprint gives big cats room to turn around
- Swinging door makes entry and exit easy
- Stain resistant plastic wipes clean easily
Cons
- Swinging door can intimidate cats that dislike flaps
- Door flap is thin and can be chewed or pushed open
- Replacement carbon filters are sold separately
- Traps heat and odor if not cleaned often
At 23.6 by 17.3 by 16.9 inches, this hooded box is meaningfully larger than most enclosed models on the shelf. That extra length gives a long-bodied cat room to squat, turn, and finish without touching the door or the back wall.
Owners credit the hood for a neater room and better odor control than open pans. The stain and odor resistant plastic wipes down quickly, which is a genuine advantage in a fully enclosed box where the base is harder to reach. The built-in carry handle snaps into place, so moving the box to scoop out or swap liners is straightforward.
The carbon filter is pre-installed, which means odor control works from day one. Replacement filters are sold separately, and that is worth budgeting for if you run the box at full tilt. Owners who skip filter changes notice the difference in smell first.
The door is the part I would watch. It is a thin swinging plastic flap. Plenty of cats walk through it without a fuss, and plenty of others decide a moving door is a trap and refuse the box. Owners also report cats chewing the flap or pushing it open and out of frame, which defeats the containment.
The other recurring complaint is heat and odor building up. An enclosed box that is not scooped on schedule becomes a problem fast, and a large cat produces more waste per day than a small one. Plan on scooping at least once a day.
When a full enclosure is the right call
Enclosures earn their footprint in two situations. First, odor: if you live in a small apartment or the box sits near your kitchen, a hood plus a carbon filter genuinely reduces smell in the room. Second, appearance: a lidded box keeps the scatter you do get out of sight, which matters if the box lives in a visible corner.
The 23.6 inch length is one of the roomier enclosed footprints here, which is why it beats smaller hooded boxes for a big cat.
Where it can fall short
Ventilation is the weakness. The large swinging door plus the hood traps heat and moisture, and owners who clean less often report a musty smell that a filter does not solve.
If your cat is timid, refuses flaps, or simply prefers open air, skip this and go open-top or top-entry instead. We also cover more enclosed options further down for households that want the biggest interior available.
5. Pureness Giant High Sides Pan: Best High-Sided Open Pan
Pureness Giant High Sides Cat Litter Pan, Colors may Vary.
21.25 x 17.13 x 9.25 inches
1 pound
Polished plastic
4.7 stars from 14377 reviews
Pros
- Giant footprint comfortably fits large and long cats
- Very high walls keep litter off the floor
- Smooth polished plastic does not hold odor
- Long-standing design holds up to daily use
- No lid so cats are not spooked
Cons
- Deep pan needs a full bag of litter plus extra to fill properly
- Open design offers no odor trapping and limited privacy
- Light plastic feels less substantial than heavier pans
- Colors may vary from the listing photo
This pan holds one of the highest average ratings in the entire roundup, and I think that rating is earned. The brand designed it for multiple-cat households or large cats that like to dig, and both of those groups are well served by a 21.25 inch long, 17.13 inch wide footprint with walls around 9 to 10 inches.
For a Maine Coon, that length matters more than anything else on this list. A 19 inch pan forces a 20 inch cat to crouch at an angle with her hindquarters near the wall. A 21.25 inch pan gives her room to settle fully, and combined with the high sides it is why owners of large breeds gravitate here.
Cleanup is fast. The high polish finish is smooth and stain resistant, so urine and odor wipe off rather than soak in. At one pound it is among the lightest boxes here, which matters when the base is full of litter
There is no lid, and owners call that a feature rather than a flaw. Cats that get spooked by enclosed boxes use this one without hesitation, and the tall walls still give a sense of privacy from a low angle.
The real cost is litter. A deep pan this size needs a full bag plus extra before you even reach a proper depth, and one owner pointed out that a high-sided design only works when the litter level is high enough to absorb. Keep 2 to 4 inches in there, and if the walls are the point, fill it accordingly.
How to check the fit for your cat
Measure from your cat’s nose to the base of the tail, not the tip of the tail. That measurement times 1.5 gives your target interior length. If your cat measures 14 inches, this 21.25 inch pan clears the mark comfortably and leaves room to spare, which is exactly what you want from a long-haired breed.
Also measure width. Your cat should be able to turn around inside the box without touching a wall, and a 17 inch width handles most cats over 15 pounds.
Trade-offs you accept with this design
No odor trapping. If your home is smell-sensitive, pair this with an unscented clumping litter and scoop twice a day. Owners of sprayer cats also note that 9 to 10 inches catches most spray but is not the same as a 14 inch wall.
Colors vary between shipments. One owner was unhappy to receive a white pan instead of the blue shown, so check what arrives and swap it if the color matters to you.
6. Tidy Cats Breeze XL System: Best Self-Cleaning System
Purina Tidy Cats Breeze Litter Box System Kit with Pellet Cat Litter, XL Litter Box and Litter Box Pads
27.5 x 18.5 x 13.7 inches
18 pounds
Kit with pads and pellets
4.5 stars from 11306 reviews
Pros
- Scoop free pellet and pad system makes cleaning very quick
- XL box has higher walls and a bigger footprint than the original
- Disposable Ion pads lock in moisture and odor for up to 7 days
- Pellets are 99.9 percent dust free and cut tracking
Cons
- Kit includes only starter amounts so pads and pellets must be repurchased
- Pellets are not accepted by every cat
- Non-clumping pellets cannot be used in a conventional clumping box
- Large footprint and full size box take a lot of floor space
The Breeze works differently from everything else here. Instead of clumping litter you scoop, it uses zeolite pellets that do not clump. Solid waste sits on top, you scoop it into the lined waste drawer, pull out and replace a disposable pad, and slide the drawer back in. There is no litter to scoop through.
The XL version is the one to look at for a large cat. It measures 27.5 by 18.5 by 13.7 inches, which makes it the longest footprint in this roundup, and the walls are taller than on the original Breeze. Owners of large cats report that the XL fits noticeably better than the smaller system, and owners using the Breeze XL specifically praise the all-around high side for stopping spill over.
That high side matters more than it sounds. The box is tall enough that a cat kicking litter out is a rare complaint. The zeolite pellets are 99.9 percent dust free, which directly reduces the tracking trail out of the box, and a lot of owners switch to this system for that reason alone.
The pads are the quiet hero. Disposable Ion pads sit under the pellets and lock in moisture and odor for up to seven days for one cat, so a busy week does not leave you with a soaked drawer and a smell.
The catch is cat acceptance and restocking. Owners report that not every cat takes to pellets, and the pellets cannot be moved into a conventional clumping box if your cat rejects them. The kit ships with a starter amount, so pads and refill pellets are a recurring purchase. At 18 pounds, this is also by far the heaviest box here.
Is an automatic litter box big enough for a large cat
This one is. The internal footprint of 27.5 by 18.5 inches clears the 1.5x body length rule for nearly every large breed, which is the part that trips up most self-cleaning boxes. The mechanical action is the drum rolling over the pellets, not a clumping-and-scooping routine, so there is no burrowing for a cat to hide waste in.
Mechanical noise is worth flagging if your cat is skittish. Owners of timid cats report they adapt within days if the box is introduced with treats, but a cat that is frightened by the sound may avoid it rather than adjust.
Where the self-cleaning approach costs you
You give up clumping litter, which many owners consider the gentlest option for cats. You also give up flexibility: pellets only work in this system, so the box is a one-way door once your cat accepts it.
Ongoing cost is real but predictable: pads plus refill pellets replace litter purchases. If you are curious whether a self-cleaning box fits your household before you commit to pellets, our guide to self-cleaning litter box models covers the other mechanical options in detail.
7. Petphabet Jumbo Hooded Box: Best for Multi-Cat Homes
Petphabet Jumbo Hooded Cat Litter Box, Extra Large Gray
24.8 x 20 x 16.5 inches
Door opening 8.2 x 7.8 inches
2.95 pounds
4.6 stars from 9547 reviews
Pros
- Jumbo interior comfortably fits two cats at once
- Removable clear lid screens the mess while letting light in
- Non-stick plastic wipes clean quickly
- High back and door opening help contain spray
- Rounded interior avoids tight corners
Cons
- Clear lid scratches and shows scuffs over time
- Door opening is small relative to the interior
- Plastic shell can flex or shift if a cat leans on it
This is the box to look at if two cats share a home. At 24.8 by 20 by 16.5 inches, two average-sized cats can sit inside at the same time, which removes the standoff behavior that happens when a second cat waits outside a single-cat box and then rushes in afterward.
The removable clear top cover is the clever part. Because it is transparent, the box still screens the mess visually while letting light into the interior, so it does not feel like the dark cave that makes some cats refuse enclosed boxes entirely. Owners like that they can lift the cover off completely for access and cleaning.
The interior corners are rounded, so there is no tight angle for litter and clumps to wedge into and no place for urine to pool. The non-stick plastic wipes clean without scrubbing, which matters in a multi-cat home where the box is used several times a day.
The high back and the door opening both help with spray containment. That is not a design flourish; it is the difference between a wiped floor and a soaked wall behind the box for a cat that eliminates standing.
Two honest drawbacks. The door opening at 8.2 by 7.8 inches is small relative to that big interior, so a large cat needs to maneuver rather than stroll through. And the clear lid is the part that shows age first, scuffing and scratching over time until it looks hazy.
How many boxes a multi-cat home needs
The widely repeated guidance is one box per cat, plus one extra. Two cats means three boxes. Spacing matters as much as count, though: put them in different rooms, never side by side, because cats that see another cat using a box will queue up or avoid that spot entirely.
This box fits well in a three-box plan because its size lets two cats share without conflict, which reduces the pressure on the smaller boxes. If your household is two large cats, pair it with an open pan and a top-entry so the shy or older cat has a choice of location.
Where the jumbo design underperforms
The shell is light plastic, and owners report it can flex or shift if a cat leans on the outside while jumping in. It is stable in normal use but not rigid the way a steel pan is.
For a single very large cat, the door opening is an unnecessary squeeze. For two cats, it is a fair trade. Pick by household, not by cat size alone.
8. Amazon Basics Large High Sided Open Pan: Best Low-Entry Pan
Amazon Basics Large Cat Litter Box with High Sides, Open Top for Easy Access, Includes Scoop with Storage, 19″ x 15″ x 11.75″, Grey/Beige
19 x 15 x 11.75 inches
1.95 pounds
BPA-free recyclable plastic
4.3 stars from 9290 reviews
Pros
- Open top and lowered front make entry easy for older and large cats
- High sides significantly reduce litter scatter
- Nothing sticks to the plastic bottom so scooping is quick
- Compact footprint so two fit in one room
- On-board scoop storage keeps the scoop handy
Cons
- Open top does not snap or seal securely onto the base
- Indented front corners and a raised base ridge make pooled urine hard to scoop
- Included scoop slots are too wide and let small clumps fall through
- Sloped top makes the box look smaller than it is
This is the one to shortlist for a senior or arthritic large cat. The lowered front on an open top means there is no wall or flap to climb over, so a stiff back or a painful hip does not stop your cat from getting in. Owners with older cats report they use it without hesitation.
Everything else about it is competent. The 11.75 inch high sides do real work on scatter, the BPA-free recyclable plastic is easy to wipe, and the on-board scoop storage means the scoop stays with the box instead of wandering off. The compact footprint is also genuinely useful in a small room where two boxes need to fit.
It is the lowest rated box in this roundup at 4.3 stars, and the reviews explain why. The molding is the issue. There is a ridge around the base and indented front corners, and reviewers report that pooled urine in those corners is slow and unpleasant to scoop out. That is a real problem in a home where a large cat produces a lot of urine.
The scoop that comes with it also draws complaints. Its slots are too wide, so small clumps fall straight through and end up on the floor. Budget for a replacement scoop, which is a cheap fix.
One more quirk worth knowing: the open top does not snap or seal onto the base. It is more of a visual lid line than a functional one, and a sloped profile makes the box look smaller than the measurements suggest. Judge it on the 19 by 15 footprint, not on appearance.
When a low entry matters more than anything
Entry height is the whole point for older cats. A 12 inch wall is a step over for a healthy adult, and a climb for a cat with arthritis, a declawed front paw, or a neurological issue. This pan gives you the high side walls without a matching entry barrier, which is a combination most boxes force you to choose between.
Owners of kittens and small cats like the same feature, and it also keeps the box usable as your cat ages. That longevity is why I keep recommending an open pan as the second box in any large-cat household.
Where this pan disappoints
The base design makes cleaning harder than the shape suggests. Deep corners plus a raised ridge means you will be chasing urine into a seam with a cloth more often than you would like.
It is also modest on size at 19 by 15 inches, so a cat over 18 pounds will feel it. Use it as the low-entry option in a pair, not as the only box for a very large cat.
9. Amazon Basics Lidded No-Mess Box: Best Spacious Enclosure
Amazon Basics Cat Litter Box with Lid, No-Mess, Spacious Enclosed Design with Odor Control, Easy Access, Stain Resistant, 26″ x 23″ x 20″, Charcoal
26.26 x 20.2 x 22.87 inches
3.75 pounds
Carbon filter included
4.6 stars from 5702 reviews
Pros
- Among the largest enclosed boxes available giving big cats room to stand and turn
- Enclosure plus carbon filter noticeably reduces odor
- Stain resistant plastic wipes down easily
- Door and handle make the box easy to open carry and clean
Cons
- Bulky footprint takes up a noticeable amount of floor space
- Swinging door can deter cats that dislike flaps
- Replacement carbon filters are sold separately
If you have a cat that needs to stand up and turn around inside its box, this is the enclosure to beat. The interior measures 26.26 by 20.2 inches with a 22.87 inch height, which makes it the tallest enclosed design in this roundup and one of the roomiest by footprint.
Reviewers of large cats confirm the room matters. A 25 pound Maine Coon can stand, pivot, and settle without pressing against the door or the back wall, which is precisely the geometry that makes smaller hooded boxes unacceptable to big cats.
Odor control is noticeably better than an open pan, because the enclosure plus the pre-installed carbon filter keeps the smell inside the box. The stain resistant plastic wipes down without scrubbing, and the swinging door plus the built-in carry handle make it easy to open the front, scoop out, and carry the box.
The cost is floor space. This box is genuinely bulky, and in a small apartment it will dictate where you can put it. Owners flag the footprint as the main trade-off, and the flap door as the usual caveat that comes with enclosed designs.
Filters are sold separately, so plan a recurring replacement if you rely on the carbon layer for odor control rather than just extra containment.
Does enclosure help or hurt a large cat
It depends entirely on the cat. A large cat that eliminates standing often prefers a covered or hooded space, because the high back wall catches spray that would otherwise hit the floor beside an open pan. Enclosure is one of the few design choices that genuinely helps sprayers.
The counterpoint is visibility and air. Cats that are anxious, elderly, or simply prefer an open view of the room may refuse an enclosed box outright. If yours does, do not push it. An open high-sided pan with a mat outside will work better than an impressive box the cat ignores.
Is it worth the footprint
Yes for a large cat in a roomy house or an odor-sensitive home. It is the most generous enclosed interior here, and enclosure plus a carbon filter is the strongest odor setup in this roundup. For a studio apartment, measure first, then decide.
Remember the placement rule in a multi-cat home: this box should not sit next to another. Its size makes it tempting to pair units side by side, which is the wrong instinct.
10. WoofiGo Stainless Steel XL Pan: Best Stainless Steel Pan
Stainless Steel Cat Litter Box, XL High Sided Open Top Litter Pan, 1 Scoop
23.5 x 16 x 13 inches
Steel pan in ABS enclosure
1 pound
4.6 stars from 4152 reviews
Pros
- Stainless pan does not absorb odor and wipes clean in seconds
- 12 inch curved walls stop vigorous litter flinging and high spraying
- Very large interior suits big and multi-cat households
- Open top is easy for older or three-legged cats to enter
- Sturdy base resists tipping and reduces scratching noise
Cons
- Included plastic scoop is flimsy and many buyers replace it
- Large box needs a lot of litter and floor space
- Some fine clumping litter can harden on the metal surface
- Scraping on steel can make a screeching sound
- Plastic entrance grate has been reported to crack
The single biggest reason owners switch from plastic to steel is odor and cleaning speed. Steel does not absorb urine into its surface the way plastic does over years, and clumps slide off instead of bonding to the pan. Owners switching from plastic consistently call those two things the decisive upgrade.
This pan pairs a 23.5 by 15.6 inch stainless base with a curved ABS high-wall enclosure that rises to 12 inches. That combination gives you a steel interior with plastic containment, and the curved wall shape is credited with finally stopping litter scatter for vigorous diggers.
The open top keeps it accessible. Owners of older or three-legged cats like that there is no entry to negotiate, and the front grate helps knock litter off paws on the way out. The buckle connection between the steel pan and the enclosure makes the assembly stable, so it does not shift when a cat climbs in.
Buyers warn about noise. Steel does not have the damped feel of a thick plastic pan, so a cat scratching vigorously can produce a screech that startles some cats. It is not a dealbreaker, but it is a real change from a plastic box.
The near-universal complaint is the included scoop, which is flimsy enough that many owners bought a better one. The front grate has also been reported to crack. Fine clumping litter can harden on a steel surface in hot weather, so wipe it down rather than scrubbing.
Why steel changes the odor picture
Plastic micro-scratches over time and those scratches hold residue and smell. Steel resists scratching, does not stain, does not rust at the litter box level, and stays odor neutral for the life of the pan. In a warm room where plastic gets musty, that difference shows up within weeks.
Cleaning is also faster because clumps release instead of sticking. Wipe with a damp cloth, rinse, dry. No special cleaner needed for the pan itself.
Trade-offs before you buy
It is heavy on litter and heavy on space. A 23.5 inch steel pan with 12 inch walls needs a deep fill to work properly, and it will not tuck into a tight corner.
Buy a separate long-handled scoop when you order. Also weigh the noise factor if you have a cat that is sensitive to sudden sound, since scraping on steel carries further than scraping on plastic.
11. Kirecoo Large High Sided Steel Pan: Best Budget Pick
Kirecoo Large High Sided Stainless Steel Cat Litter Box, Non-Stick
17.52 x 13.58 x 5.9 inch selected size
2.28 pounds
Stainless steel
4.6 stars from 2946 reviews
Pros
- Stainless steel does not absorb or retain odor
- Non-stick surface lets clumps and waste slide off
- Stable thick-walled pan with no urine leakage at the seams
- Open top suits cats that dislike hooded boxes
- Rounded edges are safe and comfortable to grip
Cons
- Selected 17.52 inch size is shallower than ideal for very large cats
- Bottom sticker leaves a residue that traps litter dust
- Rounded bare metal edges need care when handling
Moving into a metal pan on a modest budget is a genuinely useful combination, and this is the affordable route into steel among the boxes we tested. At 4.6 stars across nearly 3000 reviews, the rating holds up, and multi-cat households report a clear preference for steel after switching from plastic.
What you get is a no-nonsense open pan. No urine leakage at the seams, a non-stick surface that lets waste slide off, and an open top for cats that dislike hooded designs. The thick-walled construction keeps it stable without needing to be heavy.
The catch is size, and it is a real one. The selected size here measures 17.52 by 13.58 inches with 5.9 inch side height, which is low for a large cat that kicks litter or sprays. Buyers who specifically want a big cat should look at the larger variants this model is offered in rather than assuming the default will fit.
Owners who picked the larger 23.43 inch variant report noticeably better containment, which is worth knowing if you are ordering for a Maine Coon. The smaller size buyers are the ones noting that 5.9 inch height is lower than they wanted.
Two smaller complaints: the factory sticker on the bottom leaves a residue that traps fine litter dust, and the bare rounded metal edges need a careful grip if you are moving it while full.
When a budget steel pan makes sense
It makes sense if you are outfitting a second bathroom for a multi-cat home, or if your goal is simply to stop using plastic without spending much. The odor resistance alone justifies it for owners whose current plastic pan has started to smell.
It also works as a temporary or secondary box while you find the right fit for your main cat, and it suits a senior cat because the low sides are easy to step over.
Why size is the deciding factor here
A 5.9 inch wall on a 17.5 inch floor will not stop a 20 pound cat that digs hard. That is the whole limitation. If your cat is over 15 pounds, either move up a size within this model line or spend more on the larger steel pans above.
Check the variant dimensions carefully before ordering, since the same listing covers several sizes and the shape of the box changes with them.
12. Pematar XXL Steel Box with Lid: Best for 20-Pound Cats
Pematar® XXL Stainless Steel Litter Box with Lid for Multiple & Big Cats
26 x 18 x 12 inches interior
7.05 pounds
Stainless steel with lid
4.8 stars from 887 reviews
Pros
- Genuinely oversized interior that fits 20 to 25 pound cats and several cats
- 12 inch overlapping walls stop even high-spraying cats from missing
- Stainless base stays free of staining rust and odor
- Heavy and sturdy so it never tips or slides
- Cats adapt quickly including anxious and long-bodied cats
Cons
- One reviewer reported unsanded metal edges that cut fingers
- Arrived dented in transit on at least one order
- Takes a large volume of litter to fill properly
- Bulky and heavy to move when full
This box has the highest average rating in the roundup, and it is designed around a 20 to 25 pound cat. The interior measures 26 by 18 by 12 inches, with the brand’s claim that even an overweight cat can roll over inside it without touching the walls.
For a Maine Coon or a Ragdoll, that is the difference between comfortable and cramped. Owners of very large and multiple cats single out the roomy interior as the reason they stopped searching, and several say their cats adapted within days, including longer-bodied and more anxious cats.
The overlapping side panels are the smart engineering detail. Instead of butting two panels together, the sides overlap so urine cannot seep through a seam. Owners of sprayer cats say that is what finally stopped the leak behind the box, and 12 inch walls mean even a standing cat that overshoots stays inside.
The base is non-stick, non-slip, and free of staining and rust. It includes a rubberized mat and a lid, and at 7.05 pounds it is heavy enough that it never tips or slides when a cat leans into it.
Quality control is the reservation. A small number of reviews mention unsanded metal edges that cut fingers, and at least one order arrived dented in transit. Inspect the seams and edges on arrival and file a return if the finish is rough.
Why overlapping walls matter for big cats
Any pan made of joined panels has a seam, and a seam is a path for urine under pressure from a large volume of urine hitting the back wall. Overlapping the panels removes that path entirely, which is why this box earns its reputation with cats that eliminate standing.
The same 12 inch height plus a lid also handles the litter kicker, because a cat cannot fling litter out of a wall that tall without climbing partway over it.
The real cost of going oversized
Filling a 26 by 18 by 12 pan to a proper 2 to 4 inch depth takes a large volume of litter, and the box is bulky and heavy to move when full. Plan where it goes before you fill it, and pick a spot you will not want to move often.
Fewer than 900 reviews at this point, so treat it as a newer listing with strong early feedback rather than a long track record. If a rough metal edge reaches you, send it back rather than filing it.
How to Choose a Litter Box for a Large Cat
Six factors decide whether a large cat is happy with its box. Check them in this order and you will narrow the field fast.
1. Measure your cat, then apply the 1.5x rule
Measure from the nose to the base of the tail while the cat is stretched out. Multiply that by 1.5 for your target interior length, then check that the box’s published length actually clears it. Marketing terms like jumbo, XXL, and giant mean nothing on their own, which is the mistake most buyers make.
Width matters second. Your cat should be able to turn around inside the box without brushing a wall, and that means the width should be at least as wide as your cat’s body with a couple of inches to spare.
Target dimensions by breed type, based on the 1.5x rule:
Maine Coon adult (15 to 25 pounds): 24 to 30 inches long, 18 to 20 inches wide
Savannah (12 to 25 pounds): 22 to 28 inches long, 18 inches wide
Norwegian Forest Cat (10 to 20 pounds): 22 to 26 inches long, 16 to 18 inches wide
Ragdoll (10 to 20 pounds): 22 to 26 inches long, 16 to 18 inches wide
Typical adult cat over 12 pounds: 18 to 22 inches long, 15 to 18 inches wide
Most commercially available boxes top out around 25 to 30 inches long. If your cat needs more than that, the DIY option below is worth ten minutes.
2. Set wall height for the behavior, not the look
Wall height solves two different problems and you should pick for the worse one. For a litter kicker, 8 to 12 inches catches most of what gets flung. For a cat that sprays while standing, you want 12 inches or more, or a hooded or top-entry design that contains the spray behind a back wall.
Going higher than 12 inches on an open pan gets you containment but takes away easy access, so pick the entry height carefully.
3. Balance entry height against wall height
This is the trade-off most large-cat owners miss. A senior or arthritic cat needs a low or sloped entry, which means an open pan with tall walls or a lowered front, not a hooded box with a flap. A kitten or a three-legged cat has the same requirement.
Top-entry designs solve scatter without needing a low front, but they need a cat willing to learn a new way in. Budget several days of treats if you go that route.
4. Choose material for odor and lifespan
Plastic is the value pick. It is light, cheap, and easy to rinse, but scratches over years and those scratches hold residue and odor. Stainless steel resists scratching, does not stain or rust, releases clumps instead of bonding to them, and lasts far longer. It is heavier, louder when a cat scrapes it, and costs more up front.
Disposable cardboard boxes cost more per month once litter is added and are a short-term or travel solution rather than a daily one.
5. Set up for litter depth and cleaning
Keep 2 to 4 inches of clumping litter in the box, and never let it sit on the bare floor. Large cats produce a lot of urine, and a deep enough bed absorbs it instead of letting it reach the base and pool in a corner. That is the single easiest way to prevent urine smell and the sour smell that drives a cat out of its own box.
Scoop once or twice a day. More than that, the base dries out, the litter stops absorbing, and the odor problem you were trying to solve comes back. Owners of large cats who switched to frequent scooping report the biggest change in how their cat uses the box.
6. Place boxes for how cats think
In a multi-cat household the standard guidance is one box per cat plus one extra, and that means two cats need three boxes. Space them out. Never place two boxes side by side, because a cat watching another cat use one will either wait or avoid that spot, and either outcome defeats the purpose.
Think from the cat’s point of view. A good spot is quiet, away from a washing machine, away from a dog, out of a draft, and not directly in the path of the household. Do not put the box next to their food or water. One box per floor is better than three boxes in one room.
Pair a high-sided box with a litter box mat in front of the entry. It catches what gets tracked out and gives the cat something to step on, and owners with litter-kicking cats say the mat makes a measurable difference.
When to consider a DIY extra-large box
Some Maine Coon owners have given up on commercial sizing and converted a large storage tote or an IKEA SAMLA box with a lid, cutting an entry hole in the front. It is a genuine solution when nothing on the shelf is long enough, and it costs almost nothing. Line it with a heavy liner, cut the entry high enough that your cat does not have to duck, and expect to build a frame or brace if you want real wall height.
Read our indoor cat feeding guide for the rest of the routine that keeps a large cat healthy, and our cable management guide if the box is going in a home office setup where cords and a litter box are competing for the same corner.
Frequently Asked Questions
What litter box is best for very large cats?
The best litter box for a very large cat is an open or top-entry pan at least 1.5 times your cat’s nose-to-tail length, with walls of 11.75 inches or more. For a 20 inch Maine Coon that means roughly a 30 inch box. Among the picks here, the Pematar XXL at 26 by 18 by 12 inches and the Tidy Cats Breeze XL at 27.5 inches long give the most interior room, while the IRIS top-entry box handles spraying best.
What is the ideal litter box size for a Maine Coon?
A Maine Coon needs a box at least 24 to 30 inches long and 18 to 20 inches wide. The 1.5x body length rule is the reliable measure: measure from the nose to the base of the tail and multiply by 1.5. Wall height should be 8 inches for a digger and 12 inches or more if your cat eliminates standing and sprays. Most standard jumbo pans stop at 19 to 21 inches long, which is why big breeds still feel cramped.
Which automatic or self-cleaning litter box is best for large cats?
Among self-cleaning options, check the internal litter bed rather than the exterior dimensions. The Tidy Cats Breeze XL measures 27.5 by 18.5 by 13.7 inches inside, which clears the 1.5x rule for nearly every large breed, and its tall sides stop spill over. Its trade-offs are non-clumping pellets that some cats reject, a recurring cost for pads and refills, and an 18 pound body that takes real floor space.
Why do vets often advise against fully closed litter boxes?
The common concern with a fully closed box is that it reduces visibility and ventilation, which can make a cat feel cornered, and it traps heat and moisture that turn odor into a problem when scooping slips. The nuance for large cats is that enclosure genuinely helps a sprayer, since a high back wall catches urine. The workable middle ground is a hooded or top-entry design with a removable cover, cleaned at least once a day.
Are covered litter boxes good for large cats?
Covered boxes can suit large cats well when the interior is genuinely large and the cover is removable. The Petphabet Jumbo at 24.8 by 20 by 16.5 inches and the Amazon Basics lidded box at 26.26 by 20.2 by 22.87 inches both give big cats room to turn. Watch the door opening, which is often narrower than the interior suggests, and expect to scoop every day because a closed box concentrates odor.
How do I stop a large cat from kicking litter out of the box?
Three changes cover most of it. Raise the walls to 11.75 inches or more, add a litter box mat in front of the entry so what lands outside stays outside and off the floor, and add depth so the digging surface is full, keeping 2 to 4 inches of clumping litter. A top-entry box such as the IRIS model reduces scatter further because litter has to clear an opening the cat is standing over.
Final Verdict for Large-Cat Households
Size first, every time. Measure your cat nose to base of tail, multiply by 1.5, and buy a box that clears that number in published inches rather than in marketing language. For most large-cat households, the best litter boxes for large cats pair a tall open or top-entry pan with a second box for a different cat or a different mood, spread across rooms rather than grouped together.
Our first pick stays the Arm and Hammer sifting box because it removes the daily chore entirely. For a cat over 20 pounds, make the Pematar XXL or the Breeze XL your primary and keep an open high-sided pan as a low-stress alternative. Check the walls against your cat’s behavior, scoop once or twice a day, and keep 2 to 4 inches of litter in there. That routine is worth more than any feature on the box.
Last updated in 2026. We may earn a commission when you buy through links on this page, at no extra cost to you.