9 Best XL Litter Box | Skip The Plastic Pan That Traps Smell

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The lightest steel pan here, and the easiest to haul to the tub for a rinse.

If you want the odor-blocking benefit of steel without a heavy box to muscle around, this is the one. The pan weighs 3 lbs, which is 6.3 lbs lighter than the covered Nyutu above — a real difference when you carry it to the sink. At 23.6 inches long by 15.7 inches wide, it fits most adult cats with room to spare, and the 5.9-inch walls put a low curb around the litter instead of a high fortress.

Owners rate the build quality ahead of everything else, with ease of cleaning right behind it. The steel doesn’t absorb odor the way a plastic pan does, and the smooth surface means litter slides off rather than clinging. Rounded corners and smooth edges make it comfortable to grip with no sharp lip to catch your hand. It works well with standard clay litter, which is the setup most people already have.

The trade-off is the low 5.9-inch side. A cat that pees high or kicks hard will still throw some litter over that rim — this is a calm-cat pan, not a digger’s fortress. And while most owners find nothing sticks, a few note that clumping litter can still adhere to the bottom, so a quick soak before scrubbing helps.

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A jumbo steel pan with just enough extra depth to keep the diggers contained.

The number that matters here is 6 inches — the wall height on a pan that runs 23.6 inches long by 15.7 inches wide. That extra fraction over the Kichwit’s 5.9 inches is small, but the deep sides are built to catch litter and urine before they clear the rim. It’s sized for adult cats up to 20 lbs, so a big cat has genuine room to turn rather than perch.

Owners put build quality first here, and cleaning second, with the large footprint close behind — plenty of them run it for multiple cats and find the surface wipes down without a fight. The stainless pan is non-porous, so urine odor doesn’t soak into the surface the way it does in a scratched plastic pan. Rounded corners and smooth edges keep it safe to handle and easy to pick up.

The non-stick surface is the biggest reason it cleans easily — waste doesn’t bond, and you can rinse and sanitize without chasing stains into scratches. What you give up is height headroom: at 6 inches it sits well below the 12-inch walls on the big XXL boxes further down. For a cat that launches litter across the room, this won’t hold everything back.

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Light, open, and roomy — a pan a senior cat can step into without a struggle.

At 1.45 kg, this is one of the lightest steel pans in the group, and that matters if you carry it to the bathtub for a full wash. The 23.62-inch by 15.75-inch footprint gives large and multiple cats a comfortable stretch, and the open top lets air circulate so the smell doesn’t sit heavy in one spot. The maker pitches it for single or multi-cat homes and for elderly cats that need a low, open entry.

Build quality leads the praise here, and the easy-clean surface follows close behind — the smooth pan lets waste and debris slide to the bottom for a quick scoop. The non-porous metal avoids the scratches where plastic traps grime, so the box stays fresher over time. It even doubles as a pet bathing tub or storage container when the litter comes out, which is a nice bit of extra mileage.

The 5.91-inch sides divide opinion. Some owners love the raised rim for containing scatter; a smaller share wish it were even taller. Treat that as a fit question, not a flaw — great for an energetic cat that kicks a little, less ideal for one that floods the rim. If you need real wall height, skip to the 12-inch boxes below.

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The tallest wall in this group at 12.99 inches — built for cats that throw litter.

Here is the head-to-head that sells this box: its walls rise 12.99 inches, versus 5.9 inches on the Kichwit — roughly twice the barrier for a cat that digs or sprays. The floor plan runs 24.6 inches long by 16.92 inches wide, wider than the Nyutu’s 14.6 inches, and longer too, so a big cat isn’t cramped when it turns. A non-slip pad at the bottom keeps it planted.

This one is polypropylene rather than steel, so factor that into your choice: it won’t carry the same odor-blocking benefit as the stainless picks, but it brings the height and the footprint at a mid-range feel. Owners talk about size first — the sheer volume of the pan is what they notice — with the high sides and litter containment close behind. It’s assembled without tools and built to serve multiple cats without territory squabbles.

Where it stumbles is value: the material gives up the stainless advantage, and a fair number of owners weigh the cost against what you get. That’s a fair knock, not a dealbreaker — for a household that needs the towering sides and doesn’t mind a plastic pan, the containment is the point.

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A fully enclosed steel box that keeps dogs out and litter off your floors.

This is the box for a home with a dog that treats the litter pan as a snack bar. The standalone dimensions run 23.62 inches long by 15.75 inches wide by 15.67 inches tall, with a 5.51-inch-high sided enclosure down low and a 4.25-inch top entry above. It’s sized for cats up to 16 lbs. Stack it next to the Kichwit’s 23.6 by 15.7 footprint and you get the same base area — the difference is height and the closed lid.

The two-mode design is the clever bit. In fully closed setup, a 90-degree self-closing top lid works with a charcoal bag that holds an odor-absorbing filter, and the enclosure keeps dogs out. In semi-closed mode, you get easy access for cleaning and a calmer way to get a nervous cat used to an enclosed box. There’s also an in-and-out trick: with the knob down, the front door is entry-only and the exit is on top; with it up, the front door swings both ways.

The spec sheet lists a 110-lb weight capacity and a 3-5 year service life for the thickened steel and ABS build. A modular one-second disassembly lets you lift the metal pan for a rinse without moving the rest. The catch, as owners note, is the lid: some find the top section fiddly to remove and refit. The steel itself is rust- and scratch-resistant, so the pan keeps its surface where plastic would scar.

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An XXL steel fortress for the Maine Coon that needs to sprawl, not squeeze.

Start with the size, because that’s the whole pitch: 26 inches long by 18 inches wide by 12 inches tall, a full step up from the 23-inch pans higher up. The maker builds it for Maine Coons, Ragdolls, and multi-cat homes, with a 26″ x 18″ floor that lets a big cat sprawl rather than squeeze. Cat owners here care most about that footprint, and the sheer openness of the interior is what gets noticed.

The 12-inch height does the heavy lifting on leakage. The walls overlap so urine stays in the box instead of seeping out of the seams — a real fix for a cat that pees standing up or digs deep. The steel bottom is non-stick and non-slip, so waste slides off and the pan doesn’t skate when a cat lands on it hard. The surface wipes and rinses clean, and the metal won’t absorb urine or odors.

At 7.1 lbs it stays manageable for a 26-inch steel box, and the maker lists a 3-5 year service life. The honest limit: this is a covered box, so a cat that refuses an enclosure will need an adjustment period before it will use it.

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A 60-liter pan built for the trip you take without a cat sitter on call.

The standout figure here is 60 liters of litter capacity, which the maker says lasts an adult cat 60 days between full changes. That’s the number you buy this box for: fewer full litter swaps when you travel or work long hours. The pan measures 28 inches long by 20 inches wide by 12 inches high, designed for Maine Coons, Ragdolls, and multi-cat families. Owners gush about the size first, and how easily the surface cleans second.

The 12-inch walls use a leak-proof design, with overlapping panels that keep urine in rather than dripping through the seams — good for a cat that pees high or digs. The steel pan buckles tightly to the wall enclosure so it doesn’t pop loose, and six rubber mats under the base protect your floor from scratches. The bottom is non-slip and non-scratch, and the whole thing wipes and rinses without absorbing odor.

There’s a small add-on worth calling out: an upgraded foot pedal that helps elderly cats and short-legged cats step in and out, and filters stray litter off their paws on the way. At 11 lbs it’s the heaviest box here, so it’s a semi-permanent fixture rather than something you tote around. The honest caveat is the material blend — ABS and stainless together — so expect more plastic in the frame than a pure steel pan.

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The biggest footprint and tallest wall here — for the cat that owns your bathroom.

This is the largest box in the group by a whisker: 28.5 inches long by 20.5 inches wide on the activity floor, with the overall unit at 28 by 20.5 by 14 inches tall. That 14-inch wall is the tallest here, and it’s aimed straight at the high-pee cats where a regular box fails. It also holds 60 liters of litter, so you change the litter less often. Owners focus on the size first and the build quality second — both land where you’d want them.

The height does the work. A 14-inch super-high wall keeps urine and flung litter inside even for a cat that sprays upward, and the 28.5 by 20.5 floor lets a large or chubby cat turn around easily instead of fighting for space. The stainless steel resists scratches and won’t absorb odor, and the maker lists a 3-5 year service life. It wipes clean with a rinse and a cloth, because the non-stick bottom doesn’t let waste bond to it.

The one thing to weigh is the footprint. This is a lot of box to place — it wants a real corner, not a narrow gap. If you have the floor space and a big cat, it’s the most roomy answer on the list. If space is tight, the 23-inch pans higher up fit better.