Some cats dig with their whole body. They rear up, both back feet working, and the litter goes everywhere except where you want it.
If that describes your cat, the fix is not a deeper layer of litter or a firmer mat. It is a pan with taller walls, and the reason is simple physics: the litter a cat throws travels backward and upward, and a high back wall catches what a low one lets fly past.
A high-sided litter box is a litter pan with walls roughly 9 to 16 inches tall, about twice the height of a standard box. That extra height intercepts the litter a cat flings while scratching so it lands back inside the pan, and a lowered entry on the front keeps the same containment without blocking the cat from stepping in. That combination, tall walls plus a low entry, is the entire design problem, and it is where most of the picks below separate themselves.
Before we get into the roundup, one distinction matters more than any spec. Litter scatter and urine overspray are different failures that owners constantly merge into one problem.
A scatter-digger throws dry litter over the back and sides of a box, and a taller wall solves it. A high-peeing cat aims over the top edge while standing, and a taller wall only partly solves it, because the fix is a layout that forces the cat to turn its body before it can aim. This guide covers the best litter boxes for high sided digging, and it segments the picks by which of those two problems each one actually addresses.
Every box below was assessed on measured wall height, entry height and style, footprint, material, and the consistency of the customer feedback behind it. We weighted real-world ownership reports heavily, because wall height on a spec sheet tells you nothing about whether a cat will actually step into the thing.
Table of Contents
Top 3 Picks for Digging Cats (October 2026)
If you only read one section, read this one. The three boxes below are the ones we would put in a home with an aggressive digger, and each solves the problem in a different way depending on your cat and your floor space.
All 10 High-Sided Litter Boxes at a Glance in 2026
The table below lists all ten picks with the two numbers that decide the outcome for a digging cat: how tall the walls are, and how tall the entry is. A high number and a low number together is the winning combination, because containment without access just teaches your cat to go on the floor instead.
| Product | Specifications | Action |
|---|---|---|
| IRIS USA High Sided Large |
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| Van Ness Giant High Sides |
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 Arm and Hammer Rimmed Wave |
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 Amazon Basics Large High Sides |
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| WoofiGo XL Stainless Steel |
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 Yangbaga XXL Stainless Steel |
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 Tripamin 15 Inch Enclosure |
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 Paulmele 16 Inch All Steel |
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 TownTime Extra Large |
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 RIZZARI Stainless Steel Small |
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1. IRIS USA High Sided Litter Box – The All-Round Scatter Fix
IRIS USA High Sided Cat Litter Box, Large, Scatter Shield, Black
19 x 15 x 11.75 inch plastic pan
11.75 inch walls
Open top design
1.96 lb
Pros
- 11.75 inch walls with an integrated scatter shield catch kicked litter on every side
- Roomy 19 x 15 inch footprint suits large and multiple cats
- Open top makes scooping and health monitoring easy
- Made in the USA with global materials
Cons
- Lightweight plastic can flex or be nudged by a large cat
- Open top gives no cover against odor
This is the box we keep coming back to for one specific reason: 11.75 inches of wall with no lid and no filter to obstruct a digger who throws litter straight up. Owners describe the same result across tens of thousands of reviews, which is the strongest consistency signal in this whole roundup. The tall walls form what the manufacturer calls a scatter shield, and it doubles as privacy for a cat that wants to feel hidden while it goes.
Because the top is open, the digging happens in plain air with nothing overhead to stop the cat’s motion. A covered box interrupts the scratch cycle, and plenty of cats respond by refusing the box entirely rather than adjusting. Reviewers also note that the open top makes health monitoring easier, since you can see litter and urine level without lifting anything.
The footprint is 19 by 15 inches, which is a genuinely generous interior for a pan at this wall height. Several owners with large cats report the extra room is what finally stopped their cat from standing on the back edge to urinate, because there was enough floor to squat down instead. The plastic is stamped and made in the USA, and the profile is rounded enough that litter scoops out of the corners without a brush.
Our one reservation is weight. At just under two pounds, this is a pan you can carry one-handed, which is convenient, but it also means a determined 20-pound cat can lean against a wall and shift the whole box.
Several reviewers mention nudging or flex. If your digger is also a mover, put it against a wall or on the non-slip surface that most of these pans expect but do not always include.
What to check before you buy this pan
Check your floor space. Nineteen by fifteen inches is bigger than the standard pan, and at 11.75 inches tall it needs vertical clearance too, so a shelf under a low cabinet will not work. Owners who placed it in a laundry room or a corner report zero regret; owners who squeezed it into a narrow alcove report the tall walls eventually got knocked over.
Also check that your cat is willing to use an uncovered pan. If your cat currently ignores a covered box, this design solves that problem at the same time as the scatter problem. It is the option we would try first in a single-cat home with no urine-spraying history.
Where this pan falls short
There is no odor containment. An open top lets smell build in the room, and while the plastic does not absorb odor the way a scratched steel pan can, an open pan in a small space will need regular scooping to stay fresh. If you are in an apartment with close neighbors, plan on a covered or enclosed model instead.
It also does nothing for a high-peeing cat beyond the extra wall height. The design intent here is scatter, and for spraying you want a box that changes the cat’s aiming posture rather than just raising the barrier.
2. Van Ness Pureness Giant High Sides – Best Value for Scatter Control
Pureness Giant High Sides Cat Litter Pan, Colors may Vary.
20.5 x 17 x 10 inch polished plastic
9 to 10 inch walls
Lowered entry
1 lb
Pros
- 8 to 10 inch walls corral kicked litter and stop over-the-side accidents
- Extra large 20.5 x 17 inch footprint fits big and multiple cats
- Smooth polished surface wipes clean and resists staining
- Long-standing design that holds up for years
Cons
- Colors may vary from what is pictured
- Deep capacity takes a lot of litter to fill
- Large footprint uses more floor space than standard pans
This pan has been on the market since 2005, and that longevity shows in the review profile. Eighty-four percent of owners give it five stars, and the recurring sentence in the feedback is about calm. Cats that were anxious or spraying stop showing the behaviour once they are inside something with real walls around them, and several multi-cat households report running two or three of these side by side without conflict.
The dimensions are listed at 9.25 inches high by 17.13 wide by 21.25 deep, with a lowered entry point on the front, and that pairing is the design worth understanding.
A uniform 10-inch wall all the way around would contain more litter, but it would also put a 10-inch step in front of a cat with stiff hips. The lowered entry keeps access easy while the back and side walls do the containment work.
The finish is a high-polish plastic that owners describe as wiping clean without staining. That is not a small point, because a scratched, matte plastic pan starts holding odor in the micro-grooves, and once that happens the pan itself becomes a source of smell.
A polished surface resists the marking that claws leave behind, which is why this design has held its rating over two decades.
The one thing you accept with this pan is volume. At 20.5 by 17 inches it needs a real amount of litter to reach a proper depth, and owners who under-fill it report the same complaints about scatter that brought them here in the first place. Fill it properly and the walls do the work.
Why we rate this the best value pick
The rating-to-consistency ratio here is hard to argue with. Just under fourteen thousand reviews averaging 4.7 with an 84 percent five-star share is a better satisfaction profile than most of the newer boxes in this list, and the design has not changed in a way that would suggest the early reviews are describing a different product.
For a household with one or two diggers on a budget, this is the box we would buy first. The 20.5 by 17 inch interior gives a large cat room to turn around, which is the other half of the scatter equation, and the lowered entry keeps senior access intact.
Where this pan falls short
Colors may vary, so the pan you receive may not match the product image. That is cosmetic, but it matters if you are matching a specific room scheme.
It is also entirely open-topped and uncovered, so like the IRIS pan it offers zero odor trapping and zero privacy roof. Skittish cats sometimes want a hood. If yours does, move up the list rather than trying to solve it with a cover that does not fit.
3. Arm and Hammer Rimmed Open Box – Budget Pick for Everyday Mess
Arm & Hammer Rimmed Open Cat Litter Box, Wave with High Sides, High Sided Cat Litter Pan, Made in USA, Gray
18.7 x 15.5 x 10.6 inch plastic
10.6 inch high sides
Rimmed wave profile
1.3 lb
Pros
- Rimmed high sided design helps secure liners and reduce spills
- Built-in Microban odor protection
- Works with pine crystal and clumping litter
- Made from recycled materials in the USA
Cons
- Bulky rim catches litter and complicates scooping
- Some cats resist the raised lip
- Listed with a 12 month freshness replacement cycle
We put this pan in the roundup because it is genuinely useful for a specific household, not because it is the finest design here. At 10.6 inches, the wall height is squarely in the range that stops moderate scatter, and the manufacturer lists it as accepting pine, crystal, and clumping litter.
That substrate flexibility gives you options if your cat is a pellet digger.
The distinguishing feature is the rim. Rather than a straight wall, this pan has a wave-shaped rim that helps secure a liner underneath it, so a bag can be folded over the edge and stay put. Owners who were previously lining their pans report this as the feature that made them stop chasing liner corners around the room.
Be aware of the trade-off. A rimmed profile is a groove, and litter collects in grooves. This pan carries the highest one-star share of any product we reviewed, at 8 percent, and the recurring complaints are all about the same thing: litter trapped in the wave makes daily scooping slower and leaves a ring of residue at the base of the wall.
The other recurring complaint is cats stepping over the raised lip. For a cat that already treats the litter box edge as an obstacle, a 10.6 inch rim is more barrier than the wall height alone would suggest. This is a box for a cat that already uses an open pan comfortably and simply needs more wall.
When this pan is the right call
Choose it when you line your boxes, when you want the built-in odor protection of a treated plastic without moving to metal, or when you want one pan that handles pine, crystal, and clay interchangeably. Owners with a cat who switches substrate get real flexibility from a single box.
It is also worth noting that the treated surface is described as a replacement item on a twelve-month freshness cycle. Treat that as a cue to replace the whole pan yearly rather than trying to scrub the treatment back.
Where this pan falls short
The rim complicates cleaning, and reviewers who value a fast daily scoop will feel that every time. Scrubbing the wave profile takes more effort than wiping down a flat wall, and urine can sit in the low point of the wave if you are not scooping daily.
At a 4.0 average it sits below every other pan in this list, and the distribution shows why. The wall height is fine. The shape is the problem, and that is a design choice you either love or fight every week.
4. Amazon Basics Large High Sides – Best for Senior and Arthritic Cats
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 inch plastic
11.75 inch walls
Lowered front entry
1.95 lb
Pros
- 11.75 inch sides keep litter off the floor
- Lowered front edge is easy for older and arthritic cats to enter
- BPA-free recyclable plastic wipes clean easily
- Scoop stores on board so it never goes missing
Cons
- Top section does not latch securely and can lift during scooping
- Included scoop slots are too wide for small clumps
- Angled front corners trap urine
This pan is the same overall footprint and wall height as our top pick, with one difference that matters enormously if your cat is older: a deliberately lowered front edge.
The manufacturer describes it as making the box easy to enter and exit for older and large cats, and owners with arthritic cats confirm the effect rather than just repeating the claim.
Tall walls plus a lowered front is the exact configuration we described at the start, and almost nothing else in the plastic category gets it right. Most high-sided pans raise the front wall as high as the back, which solves scatter and creates a step problem at the same time. Here the back and sides do the containing and the front stays reachable.
Owners with a history of high-peeing report that this box finally solved it, which fits the pattern we have seen across the roundup. More usable floor at the front and back of a 19 by 15 inch interior gives a cat a reason to squat rather than perch on the rim and aim over the edge.
The on-board scoop storage is a small quality-of-life feature that reviewers appreciate more than expected.
The design flaws are real but minor and all fixable. The top section does not snap or latch firmly, so it can separate when you lift the pan full, and owners suggest pressing it back down and scooping before moving it.
The included scoop has slots too wide to hold small clumps, and most owners replace it within a month.
What to check before you buy this pan
Check the front corner geometry. The indented front corners are the one complaint that owners cannot work around, because they collect a small amount of urine in a place a scoop does not reach. Owners who wipe the corners with a cloth once a week report no lasting issue. Owners who only scoop say the corners smell by the end of the week.
Also plan on replacing the included scoop. That is a five-minute fix, but it is the difference between a satisfying box and a daily annoyance, and reviewers mention it often enough that it is worth doing before the first use.
Where this pan falls short
The unlatched top is the biggest practical issue. If you have a cat that pushes against the box while scratching, the two sections can separate and spill the whole contents. That is a real risk with a determined digger, and it is the main reason this pan sits below the IRIS in our ranking despite an otherwise similar footprint.
Like the two pans before it, there is no cover, so no odor trapping and no privacy roof for a nervous cat.
5. WoofiGo XL Stainless Steel – Best for Aggressive Deep Diggers
Stainless Steel Cat Litter Box, XL High Sided Open Top Litter Pan, 1 Scoop
23.5 x 15.6 x 12 inch pan
Stainless steel base,ABS walls
6 inch entry
Buckle-locked
Pros
- 12 inch walls dramatically reduce litter flinging on all four sides
- Stainless steel pan does not hold urine odor or scratch into odor marks
- Removable plastic side extension detaches for corner cleaning
- Stable build that resists tipping
- Rubber foot pads dampen digging noise
Cons
- Included plastic scoop bends and gets replaced
- Plastic entry step feels weak under a large cat
- Large body needs more litter and more floor space
- Scraping the metal with a scoop is loud
If your cat is the specific owner described in owner forums as the queen of litter flinging, this is the box that gets named. At 12 inches of wall height with a 23.5 by 15.6 inch stainless pan, it pairs deep containment with a surface that will not absorb what your cat leaves behind.
The construction is two-piece: a stainless steel pan with an ABS high-wall enclosure that buckle-locks to it. Reviewers repeatedly describe near-total containment once assembled, and one detailed write-up notes that the plastic top edges override the stainless base lip so urine drains back inside rather than tracking down the outside. That is exactly the detail you want in a box for a cat that oversprays.
The tracking pedal at the entry is a small grate that catches litter on the cat’s paws as it steps out, which reduces the tracking that high-sided boxes usually create as a side effect. It works better than nothing and less perfectly than a proper litter mat, and reviewers report combining the two.
Rubber foot pads under the pan dampen the noise of digging, which sounds trivial until you have a 5 a.m. excavator in a quiet apartment. The build is also stable enough that a cat exiting hard does not tip the whole assembly, which is where lighter plastic pans usually fail.
Why the steel base matters here
Urine sits on the surface and wipes away, while plastic scratches into crevices that hold residue. Owners who moved from a scratched plastic pan report the odor difference as the first thing they noticed, sometimes within a week.
The 6-inch entry is the compromise that makes this box work for a household with a mix of ages. It is not as low as the Amazon Basics lowered front, but it is low enough that most healthy adult cats and many senior cats step in without hesitation. Kittens need something lower still.
Where this box falls short
The included scoop is the most common complaint by a wide margin. It is thin plastic that bends under clumping litter, and many owners substitute a stiffer metal scoop. Budget for that replacement before you judge the box.
The plastic entry step also feels weak under a large cat, and the whole assembly asks for both more floor space and more litter than a standard pan. Owners who under-fill a box this size report the same scatter they were trying to fix, so judge it on whether you have room to fill it properly.
6. Yangbaga XXL Seamless Stainless Steel – Best Stainless Steel Build
Yangbaga XXL High Sided Stainless Steel Litter Box for Cats
24 x 16 x 12 inch seamless steel
12 inch walls,6 inch entry
6 lb weight
All edges rolled inward
Pros
- One-piece seamless steel leaves no seam for urine to leak or litter to trap
- 12 inch walls with a 6 inch U-shaped entry suit kittens and arthritic cats
- All edges rolled inside so there are no sharp points
- 24 x 16 inch interior lets a cat turn around comfortably
- Non-stick surface resists odor absorption
Cons
- 6 lb pan is awkward to move when full of litter
- Open top gives no privacy cover for a skittish cat
- Oversized footprint needs a dedicated space
This is the box we would buy if we wanted the fewest possible places for a problem to hide. It is a single piece of stainless steel with no seam, no screw, and no joint between the walls and the floor.
That matters for two reasons: urine has nothing to track along a seam into the floor, and litter has nothing to lodge in where a scoop cannot reach it.
The dimensions are 24 by 16 by 12 inches, which is a lot of room inside a 12-inch wall height. Reviewers single out the interior space as the reason their cats stopped perching on the edge, since a cat with a wide turning area squats instead of standing. Combined with 12 inches of wall, that covers both the scatter and the aim.
The 6-inch U-shaped entry is a deliberate accessibility feature. A U-shaped cutout is easier to step through than a straight edge because there is no corner to catch a paw, and the manufacturer states the intent directly: kittens and older cats with arthritis.
Owners of senior cats report the box being used without hesitation, which is the highest bar any litter box has to clear.
All edges are rolled inside the body of the pan. That removes the sharp lip that would otherwise sit at the top of a 12-inch wall, and it is the detail that separates a well-made steel pan from a folded sheet-metal one.
What to measure before you commit
Measure the floor, and then measure your path to the box. This pan weighs six pounds empty, and owners flag exactly this as the main drawback. Add a deep fill of clumping litter and you are moving something genuinely heavy. A box you dread cleaning gets cleaned less, and a box cleaned less gets refilled shallow.
Check the 24 by 16 inch footprint against your available wall space. If it fits in a laundry room or a wide bathroom corner, this is a set-and-forget solution for years. If it only fits in a tight gap, the weight and access will bother you every week.
Where this box falls short
It is open-topped, so a skittish cat has walls but no roof. Some cats want full cover for privacy, and for those cats a high-sided open pan is a partial solution at best. Look at the enclosed options further down if privacy is the real complaint.
At 6 pounds with no wheels and no handle, it is also the least convenient box in this roundup to relocate. Plan its final position before you fill it.
7. Tripamin 15 Inch Enclosure – Best for High-Peeing Cats
Tripamin 15”Stainless Steel Cat Litter Box Enclosure, XXL Stainless Steel High Sides with Lid, Extra Large Metal Cat Litter Box, Anti Leakage, Non-Sticky, Easy Cleaning, Includes Scoop
23.7 x 16 x 15 inch enclosure
8 inch stainless sides
30L capacity
Top entry with pedal
Pros
- 15 inch total height with 8 inch sides stops urine spraying out of the box
- Stainless tray with a tinted lid that snaps tight without leaking between sections
- Entry sits only 8 inches off the floor so older cats climb in easily
- Smooth non-stick tray resists rust and stains
- Covers far more floor area than a standard tall oval box
Cons
- Roughly 20 pounds of litter needed to reach 4 inch depth
- Some tracking remains despite the entry pedal
- Tinted plastic lid may degrade with age
- Bulky footprint needs dedicated floor space
This is the enclosure in the roundup, and it exists for a specific reason: total height. At 15 inches from floor to top with 8-inch stainless sides, the vertical envelope is what stops a cat that rears up to spray.
Raising the back wall to 8 inches is helpful, and adding another 7 inches of headroom above the cat changes the aiming geometry entirely.
Multi-cat households with spraying problems describe this as the fix they had been looking for. The stainless tray and tinted ABS lid buckle together with no gap between the sections, which is the seam that lets urine escape in most two-part enclosures. Owners report the buckle holding firm and the box latching on and off with one hand for cleaning.
The entry is described as 8 inches off the floor, which reads high until you understand it sits within a 15-inch enclosure that the cat enters from the side rather than stepping up and over.
For a lanky or older cat, that geometry is more approachable than an 8-inch step on an open box, and several owners of aging cats call out senior access as a highlight.
Capacity is 30 litres, and the anti-tracking pedal at the entry collects litter from paws on the way out. Reviewers note that some tracking still happens, which is normal for any box, but the pedal reduces it enough that owners with hardwood floors report manageable cleanup.
How much litter this box actually needs
Plan for roughly 20 pounds of litter to reach a 4-inch depth. That is the number owners quote, and it is the box’s biggest hidden cost. A shallow fill in a 15-inch enclosure defeats the point, because the cat is standing in a deep well with a shallow floor, and scatter usually gets worse.
In exchange, the capacity means fewer refills. Owners running this in a multi-cat home report substantially less frequent full changes than with a standard pan, and the cost of the extra litter per refill is partly offset by the litter you are no longer sweeping up off the floor.
Where this box falls short
It is 9 pounds and bulky. It needs a dedicated spot, not a shelf or a corner you plan to use for something else later. If your litter area is a small cabinet, this does not go in it.
The lid is tinted plastic, and owners flag its long-term durability as the open question. The stainless tray is the part that will outlast the cat; the plastic top is what eventually gets replaced. Budget for that if you are thinking in five-year terms.
8. Paulmele 16 Inch All Steel – Best for the Most Severe Cases
16” High Sides XXXL All Stainless Steel Cat Litter Box with Lid,8” Deep Metal Litter Box for Big Cats,Extra Large Litter Boxes with High Wall Enclosure,Anti-Leakage,Never Absorbs Odors,Non-Sticky
23.6 x 15.7 x 16 inch all steel
16 inch high sides
48L capacity
Stainless scoop and mat
Pros
- 16 inch walls plus an overhanging lip stop stand-to-pee cats from spraying out
- Lid nests inside the base lip so urine cannot seep through the seam
- All stainless steel including the lid removes plastic odor absorption entirely
- Sturdy side clamps allow one-hand removal for cleaning
- 48L interior suits large cats and multi-cat families
Cons
- Lighter gauge metal picks up dark marks over time
- Entry opening is high so smaller cats need the included step
- Lid does not fully close over the opening so the interior stays visible
- Plastic latches need gentle handling
At 16 inches of wall height this is the tallest box in the roundup, and it is built for the hardest version of the problem: a cat that stands at the edge and sprays over it. Owners with high-spraying cats describe the wall height plus the overhanging top lip as the combination that finally ended spray on their walls and floors.
What separates it from other enclosures is the lip. The lid extends down and nests inside the lip of the base, so there is no horizontal seam for urine to travel across. Reviewers note that among the metal boxes they tried, this was the one that stopped seam leakage, which is the single most common failure in a two-piece litter box.
It is all stainless steel, lid included, which removes the plastic-lid odor problem entirely. The manufacturer states 48 litres of capacity, which works out to roughly 40 days of use for one adult cat before a full change. A steel scoop and a litter catching mat are included, which saves you from the thin plastic scoop problem that plagues some of the other picks.
The wall height creates its own access issue, and owners are honest about it. The entry opening is high, so smaller cats and older cats need the included step to get in. That is the unavoidable trade-off at 16 inches, and it is worth weighing before you order.
Who this box is genuinely for
A large or giant-breed cat in a household where spraying is a confirmed, repeated behaviour, and where the floor and walls matter enough to protect. A Maine Coon owner in a rental is a good fit. A 9-pound cat in a studio apartment that already uses its pan without incident is over-served by a box this size.
The 48-litre capacity also rewards a specific setup: a household that changes litter infrequently. If you already leave a deep fill in place for a week at a time, this pays for itself in convenience. If you scoop daily and fully change every few days, a smaller pan works.
Where this box falls short
The metal is lighter gauge than the seamless pans earlier in this list, and owners report dark marks appearing on the surface after a few months of use even without any rust. It does not absorb odor like plastic, but it does show wear.
Two other caveats: the lid does not close completely over the opening, so the interior stays visible, which slightly reduces the privacy benefit for a skittish cat. And the latches are plastic, so they need care rather than force. A cat that repeatedly bats the lid is asking for a break, and the latches are where it will give.
9. TownTime Extra Large Side Entry – Best for Multi-Cat Homes
TownTime Extra Large Litter Box with High Sides 24.60″ Lx16.92 Wx12.99 H,Anti-Splashing Kitty Litter Box,Tool-Free Assembly,Multi cat Litter Box,Jumbo Litter Box (Green)
24.6 x 16.92 x 12.99 inch
12.99 inch walls
Side entry opening
One-piece plastic
Pros
- 12.99 inch sides plus side entry force the cat to turn fully inside before it can aim
- 24.6 x 16.9 inch footprint gives each cat room and a clean private space
- Thick one-piece construction reported to hold up for two years
- Open top is easy to clean and easy for senior cats to enter
- Smooth floor works well with sifting litter
Cons
- Takes a large amount of litter to fill properly
- Footprint will not fit tight closets or small rooms
- One reviewer reported moisture developing under the plastic base
- No lid for buyers who want full cover
The side entry is what makes this box different, and it works on a behavioural principle rather than a mechanical one. Because the cat has to enter from the side and turn to get all four feet inside, it is no longer standing at the edge facing outward when it urinates. Owners of high-peeing cats describe that single layout change as the reason the problem resolved.
That is the single highest-leverage design idea in this entire roundup, and it costs you nothing in wall height. You still get 12.99 inches of side to contain kicked litter, and you add a body-positioning effect that taller walls alone cannot buy.
The footprint is 24.6 by 16.92 inches with a non-slip base pad and tool-free assembly. Reviewers call the construction thick and sturdy, including one owner reporting it still looks new after two years of daily use. For a multi-cat household, the extra interior means each cat has room to turn without bumping another, which reduces the competition behaviour that pushes cats to spray.
Assembly requires no tools, which is a genuine advantage for a box this large that has to be moved for cleaning. The smooth floor also works well if you use a sifting litter rather than clumping clay.
Why multi-cat households should look here first
Multi-cat problems are usually space problems before they are wall problems. When two cats are sharing one pan, at least one of them is going to be interrupted, and an interrupted cat scatters and sprays. Giving each cat a large pan of their own solves more than any amount of extra wall height on a single shared box.
That is why we rate this box highly for multi-cat homes specifically. The room is the feature, and the side entry is a bonus that keeps the aiming problem in check if a cat does get interrupted.
Where this box falls short
It is open-topped with no lid, so a cat that wants a covered toilet will not find one here. Owners who want odor containment in a small room should choose an enclosure instead.
It is also the box that most needs proper filling. At this volume, an under-filled pan gives your diggers a shallow floor to fling litter off, which is the exact failure you bought this to stop. And one reviewer reported moisture developing underneath the plastic base, so check the floor beneath it periodically.
10. RIZZARI Stainless Steel – Best for Kittens and Small Cats
RIZZARI Cat Litter Box Anti-Scatter: Open-Room for Large Cats & Multi-Home
17.3 x 13.5 x 11.6 inch steel pan
11.6 inch walls
Textured entry step
5.51 lb
Pros
- Raised sides keep kicked litter inside the pan
- Textured entry step traps loose litter from paws before it reaches the floor
- Stainless steel resists odor stains and residue better than plastic
- Compact 17.3 x 13.5 inch footprint suits kittens and tighter spaces
Cons
- Sized for kittens and cats up to about 13 lb
- Open top offers no privacy cover
- Smaller review base than the other picks
Most of the boxes in this roundup are built for a large cat, and that leaves a real gap for a household with a kitten or a small adult. This pan is sized for cats up to about 13 pounds, and the 17.3 by 13.5 inch footprint keeps the whole thing compact enough for a small room while keeping 11.6 inches of wall.
Its one genuinely clever feature is the textured entry step. The raised step at the front has a textured surface that catches litter clinging to the cat’s paws as it climbs out, so a good portion of the scatter never leaves the footprint of the box at all. Owners buying it for a kitten report that this is what keeps the floor clear in the weeks when a kitten’s coordination is still poor.
The stainless steel pan is the same non-porous argument as the larger steel picks here: it wipes clean, it does not absorb urine odor, and claws cannot scratch grooves into it that trap smell. The 5.51 pound weight is manageable, and at this footprint you can still move it when you need to change the whole substrate.
Be clear-eyed about the limit, because it is a real one. This is not a box for a Maine Coon or a Ragdoll, and a cat that outgrows it will need a bigger footprint fast. Seventy-six percent of owners rate it five stars, but the review base is the smallest of any pick in this roundup, so treat the pattern as encouraging rather than proven.
When this is the right box
Choose it for a kitten, a small adult cat under about 13 pounds, or a household with genuinely limited floor space where a 24-inch pan simply will not fit. It is also a sensible second box for a multi-cat home, because two smaller pans in two rooms often solve a litter avoidance problem that one large pan never did.
The open top makes it easy to scoop and easy to watch a kitten, and there is no cover to reject. For a young cat still learning the routine, that simplicity is worth more than odor control.
Where this box falls short
There is no lid, so no privacy and no odor containment. A nervous small cat that wants a covered space will not get one here, and for a kitten that is fine but for a shy adult it is not.
And it is simply too small for a large cat. Check the interior against the 1.5-times rule: the box should be about one and a half times your cat’s nose-to-tail-base length, plus enough room to turn around. If your cat measures 18 inches from nose to tail base, this pan is undersized and you need to move up the list.
Wall Height vs. Entry Height: How to Pick
Wall height and entry height are two different measurements, and confusing them is the most expensive mistake in this category. Wall height is the barrier that stops litter leaving the box, while entry height is the step your cat has to clear to get in.
Raising one without watching the other either fixes scatter and creates an access barrier, or keeps access easy and leaves litter on the floor.
The Ohio State University Indoor Pet Initiative notes that high sides or rims can help cats that scatter litter while urinating, and the veterinary literature on feline behaviour consistently finds that cats prefer larger boxes and show no general preference between covered and uncovered designs. What the literature does not suggest is that cats enjoy climbing. Height that blocks entry is height that gets the box ignored.
Here is the wall-height ladder we use. It maps the heights available in this roundup to the cat profile each one suits.
8 inch walls – contains a mild digger, mostly useful inside an enclosure where the lid adds the height.
9 to 10.6 inch walls – the entry-level high side. Handles a moderate kicker and adds privacy without a serious access problem.
11.6 to 12.99 inch walls – the sweet spot for an aggressive digger. This is where most of the picks in this roundup sit.
15 to 16 inch total height – for a cat that stands to spray. The extra height is above the cat, not just in front of it.
For entry height, the practical target is 4 to 6 inches off the floor for a healthy adult cat, and under 4 inches for a kitten or a cat with arthritis. If a box puts the entry above 8 inches, plan on a step, and check whether the box includes one before you buy. Two of the enclosures in this roundup do not include a step and owners specifically note that smaller cats need to source one.
Scatter vs. Urine Spray: These Need Different Boxes
Litter scatter and urine overspray look similar in a messy room but they are caused by different behaviours, and no single box design is optimal for both. Sorting them out first will save you from buying a taller box and finding out it changed nothing.
Scatter is a dry problem. The cat is excavating, raking with the back feet, and flinging litter backward and to the sides. Taller walls fix this directly, and a deep fill makes it work better. An open-topped pan with 11.75 to 13 inches of wall is the answer, which is why most of the picks above are open designs.
Urine spray is a posture problem. The cat stands at the rear edge, raises its tail, and aims over the top. More wall helps, but the fix is geometry: a side entry, a top entry, or an enclosure that puts vertical space above the cat so the spray has nowhere to go. The Tripamin, the Paulmele, and the TownTime all attack this in different ways.
If you are not sure which one you have, watch for two clues. Scatter appears as a wide, low spray of litter across the floor in front of and beside the box. Overspray appears as a vertical mark on a wall, or damp patches on the wall behind the box, or litter kicked out in a concentrated pile at the rear edge only.
Stainless Steel vs. Plastic for Diggers
Material is the second decision after height, and the case for stainless steel in a digging household is mostly about longevity and odor. Steel is non-porous, so urine sits on the surface and wipes away. Plastic scratches, and those scratches are microscopic crevices that hold residue, which is why a scratched plastic pan starts to smell in a way a new one never did.
The practical rule we use: a scratched plastic pan in a household with a urine-spraying cat will need replacing far sooner than a steel pan, because odor sets into the scratches. A steel pan in a scatter-only household is a nice-to-have, since scatter does not involve the same residue problem. A coated steel pan is the category to avoid. Forum owners warn that thin-gauge, coated marketplace steel scratches under claws and then traps odor, defeating the entire reason for buying metal.
There is one more real difference. Steel at these wall heights is heavy, often 6 to 9.5 pounds before litter, and a box you find difficult to move is a box you clean less often.
If you are choosing steel, pick the largest footprint your floor can actually take so you are not tempted to under-fill it.
Beyond the Box: Litter Type, Depth, Mats and DIY Steps
A taller box only does its job when the litter inside it is deep enough to dig into. Owners in cat forums consistently describe fill depth as the first lever they turn, with a recommended range of 4 to 5 inches. A shallow fill gives the cat nothing to excavate, so it excavates harder and the scatter gets worse rather than better.
Substrate matters too. Walnut and pine pellets are repeatedly recommended for deep diggers because the pieces are large and stay put instead of flying. Fine-grain clumping clay is the hardest to contain because the particles are light and travel furthest. Crystal litter sits in between. If your cat is a violent kicker, switching to pellets before you buy a bigger pan can solve a surprising share of the problem.
A litter mat is the cheapest intervention in this whole article. It catches the litter that does leave the box, and a large mat in front of a high-sided pan converts scattered litter into one sweepable pile. Many owners of the picks above run a mat and pedal combination rather than either alone.
For senior cats, there is a widely used DIY workaround: a plastic splash guard fitted into the front entry with the middle section cut away to form a step. It lowers the entry without touching the wall height, and it works with any of the high-sided pans on this list.
For cats that spray upward rather than kicking backward, a second box in a different room works better than any single redesign, because it removes the reason they felt cornered in the first place.
If you also want to explore the fully automatic end of the category, our guide to the best self-cleaning litter boxes for cats covers the electric options and where they do and do not suit high-sided needs.
Frequently Asked Questions
What is the best high-sided litter box?
The IRIS USA High Sided Litter Box is the best all-round choice, because its 11.75 inch walls, open top, and 19 x 15 inch footprint balance scatter control with easy access. For a tighter budget the Van Ness Pureness Giant High Sides offers a 20.5 x 17 inch pan with 9 to 10 inch walls. For an aggressive digger who also sprays, the WoofiGo XL pairs 12 inch walls with a non-porous stainless pan.
Do cats prefer high-sided litter boxes?
Cats do not inherently prefer tall walls, but they consistently prefer larger boxes, and the veterinary literature shows no general preference between covered and uncovered designs. High sides only pay off when the entry stays low, so look for a box with 11 to 13 inch walls and a 4 to 6 inch entry. If your cat stops using the box after an upgrade, the entry is almost certainly the reason.
How do I stop my cat from digging in the litter box?
Five steps work better than any single fix. First, switch to walnut or pine pellets, which stay put instead of flying. Second, raise the fill depth to 4 to 5 inches so the cat has something to excavate. Third, add a large litter mat in front of the box. Fourth, move to a pan with 11 inch or taller walls, or a side or top entry if the digging has become spraying. Fifth, add a second box in another room so the cat is not competing for one.
What kind of litter box has very tall sides?
Three formats give you the tallest walls: an extra-deep litter pan, a high-sided open box with 11 to 13 inch walls, and a corner high-wall box. An extra-deep litter pan is the cheapest option. A high-sided open box is the best all-round design for a digging cat. A corner high-wall box fits tight rooms and keeps doors out of the way. Fully enclosed models reach 15 to 16 inches of total height, which is the option for a cat that stands to spray.
How tall should litter box sides be for a digging cat?
For a moderate digger, 9 to 10 inches is usually enough. For an aggressive digger, aim for 11.75 to 13 inches of wall, which is the range most of the picks in this roundup sit in. For a cat that stands and sprays over the rear edge, wall height alone is not enough and you want 15 to 16 inches of total enclosure height. Keep the entry at 4 to 6 inches regardless of how tall the walls go.
Is a high-sided litter box accessible for a senior cat?
It can be, but only if the entry stays low. Look for a box with tall back and side walls and a deliberately lowered front, such as the Amazon Basics Large High Sides, which has 11.75 inch sides and a lowered front edge. If you already own a box with a high entry, a plastic splash guard with the centre cut out forms a step and lowers the entry without changing the wall height. Avoid enclosures with entries above 8 inches unless a step is included.
The Verdict on the Best Litter Boxes for High Sided Digging in 2026
The IRIS USA High Sided Litter Box takes the top spot among these best litter boxes for high sided digging, and the reason is balance rather than any single measurement. Eleven and three-quarter inches of wall, an open top that never interrupts a digging cat, and a 19 by 15 inch interior give a large cat room to turn while keeping every fling inside the pan.
The 4.4 rating across more than thirty thousand reviews is the most proven satisfaction profile here.
The Van Ness Pureness Giant High Sides is the runner-up and the one to buy if the top pick is not right for your floor space. A 4.7 rating across close to fourteen thousand reviews, a larger 20.5 by 17 inch footprint, and a lowered entry make it the more forgiving choice in a multi-cat home.
Its design has not changed in twenty years.
Beyond those two, match the box to the behaviour. An aggressive kicker who also sprays wants the WoofiGo XL or the Yangbaga for the steel pan. A high-peeing cat wants the side entry of the TownTime or the vertical envelope of the Tripamin and Paulmele enclosures. A senior or kitten household wants the lowered front of the Amazon Basics, and a small cat gets the RIZZARI.
Whichever one you choose, fill it to 4 to 5 inches, put a mat in front of it, and give it a wall it cannot throw over. That combination does more than height alone, and it is the reason these picks work.