Top Entry Litter Box: What to Know Before You Buy?

⚡ Quick Verdict

Is a Top Entry Litter Box Right for Your Cat?

Most healthy adult cats between about 1 and 10 years old take to a top entry box within a few days. But the design has real tradeoffs, and most buying guides skip straight past them. Before you order one, run your cat through this list.

None of that means a top entry box is a bad idea. It means you should watch your cat’s first few weeks with it. Hesitation at the entrance, crying before jumping, or eliminating just outside the box are all signs it isn’t working, not signs your cat is being difficult.

📋 How We Evaluated

We scored each box on build quality, how easy the lid is to remove for scooping, and how well it actually stops litter from ending up on the floor. Scoop storage, entry hole size, and how each one held up for multi-cat households also factored in.

Dimensions	23.6 x 15.7 x 15.7 inches
Material	304 Stainless steel
Capacity	37 liters
Design	Modular/Removable

What We Found

Plastic litter boxes hold onto smell no matter how often you scrub them. This one doesn’t. The 304 stainless steel body wipes clean with a damp cloth, and it stays that way, because steel doesn’t have the microscopic pores that plastic does. At 37 liters, it’s big enough for cats that other boxes on this list would cramp.

The high walls and top entry keep leaks and scatter contained, and the modular build means you can run it enclosed or split the lid off and use it as an open pan while a cat adjusts. Wiping it down takes seconds since the surface is smooth and non-stick, so deep cleaning doesn’t turn into a scrubbing project.

Build quality is the real story here. Nothing about it feels like it will scratch through or crack after a year of daily use, which is more than you can say for most plastic pans.

Who It’s For

Owners of large cats who need the extra 23.6-inch length. Also the right call if you’re sensitive to litter box smell or you’re tired of replacing a plastic pan every year or two.

Dimensions	20.5 x 14.75 x 14.38 inches
Material	Plastic
Entry	9.25-inch diameter
Includes	Scoop

What We Found

This is the box most people picture when someone says “covered litter box.” The lid isn’t just a cap, it’s textured, and that texture catches litter granules off a cat’s paws on the way out instead of letting them fall on your floor two steps later.

The 9.25-inch entry and tall walls stop most spraying, even from cats that pee standing up. It’s made in the USA, and the included scoop hangs on a hook on the side so you’re not digging through a drawer every time you need it. Most average-sized cats have room to turn around without feeling boxed in.

Plastic wipes down fine during routine cleaning, though it won’t resist odor as well as steel over the long run. What it does well is keep the mess inside the box, which means less time sweeping and a genuinely simpler daily routine.

Who It’s For

Owners dealing with litter tracked everywhere, or a dog that keeps getting into the litter box. It’s also a good fit for apartments and smaller homes where the box has to sit in a high-traffic room.

The footprint is small enough to tuck into a bathroom or laundry room while still giving your cat a space that feels private.

Dimensions	20.75 x 16.12 x 14.62 inches
Entry	9 x 10.5 inches
Origin	USA
Design	Spacious top entry

What We Found

Same brand, more room. This variant runs slightly larger in every dimension than the standard IRIS box above, and the 9 x 10.5-inch entry gives bigger cats an easier time getting in without squeezing.

It’s made from recyclable plastic in the USA, which matters if that’s a factor for you. The interior surface is smooth, so scooping is quick, and the lid pops off without a fight when it’s time for a full clean.

The look is plain, beige and white, and it doesn’t call attention to itself in a room. For the extra couple of inches over the standard model, it’s a straightforward upgrade if your cat is on the larger side of average.

Who It’s For

Owners of larger cat breeds who don’t want to jump straight to a stainless steel box, or anyone who prefers a US-made plastic option built from sustainable materials.

Dimensions	20.5 x 14.75 x 14.38 inches
Color	Gray/White
Accessibility	Top entry only
Maintenance	Easy-clean plastic

What We Found

Same core design as the other IRIS models, in a gray and white finish that blends into modern decor better than plain beige. The textured lid does the same job as its siblings: it catches litter off a cat’s paws before they hit the ground.

The enclosed shape keeps curious dogs out and gives your cat a private corner. It’s sturdy plastic, built for daily use, and the interior has enough room for most cats to turn around without bumping the walls. The lid detaches quickly when it’s scooping time.

There’s nothing surprising here, and that’s the point. It does exactly what a top entry box is supposed to do, in a color that fits a laundry room or bathroom without standing out.

Who It’s For

Households with a dog that likes to dig through the litter box, or anyone who wants a discreet box that disappears into a laundry room or bathroom corner.

Features	Microban protection
Material	Recycled plastic
Compatibility	All litter types
Design	High walled privacy

What We Found

Arm & Hammer builds Microban into the plastic here, which slows the growth of odor-causing bacteria on the surface itself, not just in the litter. That’s a real edge over plain plastic if smell is your main worry. The wide entry and high walls also fit larger cats better than the standard IRIS models.

It’s made from recycled material, and the grated top surface is built specifically to catch stray litter particles. It works with clumping, pine, and crystal litter alike, so switching litter brands won’t leave you needing a new box.

The build feels sturdy enough for daily use without any flex in the walls. It’s a solid pick if odor control matters more to you than a low price tag.

Who It’s For

Owners fighting persistent odor, anyone who wants recycled materials, and cats that dig hard enough to need the extra wall height.

Dimensions	20.5 x 14.75 x 14.5 inches
Entry	9.25-inch diameter
Maintenance	Rounded edges for cleaning
Includes	Scoop

What We Found

Another dependable IRIS box, this time in plain white. It gives your cat the same private, enclosed space, and the high walls plus textured lid work together to keep the area around it clean. Rounded interior edges mean there’s no corner for litter and waste to build up in over time.

Like the rest of the IRIS lineup, it comes with a scoop that hangs on a side hook. The size suits an average-sized cat well without eating up too much floor space, and the build is meant to last through years of daily scooping.

There’s not much to argue with here. It’s the same formula that’s made IRIS a common name in this category, just in a different color option.

Who It’s For

Anyone who wants a proven design that fits into any room without fuss, and doesn’t need a lot of extra features to get the job done.

Dimensions	20.5 x 14.75 x 14.38 inches
Material	BPA-free plastic
Includes	Scoop
Filter	Included in lid

What We Found

This is the box to start with if you’re not sure a top entry design will even work for your cat. It’s BPA-free plastic, it comes with a scoop, and the filtered lid cuts down on odor without adding much to the price.

The high sides do a solid job containing sprays, and the removable top makes checking on things simple. It won’t win points on style, and the plastic is thinner than what you’d get on a premium model, but it covers the basics without asking you to spend much to find out if your cat likes the format.

If your cat takes to it, you can always upgrade later to steel or a larger IRIS model. If not, you haven’t sunk much into finding that out.

Who It’s For

Budget-conscious buyers, first-time cat owners, and anyone testing whether their cat will even use a top entry box before spending more.

Top Entry vs. Open Pan (Front Entry) Litter Boxes

If you’ve never used a covered box before, here’s how the two designs actually compare in daily use.

What to Look For Before Buying

Size, cleaning effort, and material durability decide whether a box gets used every day or ends up avoided in a corner. Work through these before you buy.

How Big Is Your Cat?

A box that’s too small leads to accidents right next to it, not in it, because the cat can’t turn around comfortably. A common rule of thumb is a litter box length of at least 1.5 times your cat’s body length, nose to base of tail. Most top entry boxes on this list run 20 to 24 inches. If your cat measures close to that on its own, size up or skip to an open pan.

Plastic or Stainless Steel?

Plastic is cheaper and lighter, but it scratches, and scratches hold onto bacteria and odor no matter how well you scrub. Stainless steel costs more upfront and weighs more, but it resists bacteria and doesn’t absorb smell the way plastic eventually does. If you’re replacing a plastic box every year or two because of odor, steel usually pays for itself.

How Easy Is It to Clean?

Look for smooth surfaces with as few corners as possible, since corners are where litter and waste build up. A lid that comes off without a fight matters more than it sounds, because a stiff lid is the kind of small annoyance that makes people skip the deep clean.

Does the Lid Actually Stop Tracking?

Not every top entry lid works the same way. Check for actual texture or perforation, grooves, ridges, or small holes, not just a flat surface with a hole cut in it. A flat lid does almost nothing to pull litter off paws before your cat steps down onto your floor.

Multi-Cat Households

The standard guidance is one litter box per cat, plus one extra. A single top entry box can work for two cats that get along, but the enclosed design makes it harder for a cat to escape if another cat corners them at the entrance. In multi-cat homes, pair at least one top entry box with an open option so no cat feels trapped.

How to Clean a Top Entry Litter Box

The enclosed design hides mess well, which is exactly why it’s easy to fall behind on cleaning it. Stick to a routine.

1. Scoop daily. Reach through the top opening or lift a hinged lid. Skipping this is the single biggest cause of a cat refusing to use the box.
2. Check the lid weekly. Wipe down the underside and the entry rim, where litter dust and residue tend to build up unnoticed.
3. Deep clean monthly. Empty the litter completely, wash with mild soap and warm water, and let it dry fully before adding fresh litter. Avoid harsh chemicals, cats are sensitive to strong scents.
4. Replace filters as needed. Models with a carbon or charcoal filter in the lid, like the Arm & Hammer or Amazon Basics options above, need that filter swapped every one to two months depending on use.
5. Watch for wear. Cracks or heavy scratching in plastic are where odor gets in permanently. That’s usually the sign it’s time to replace the box, not just clean it harder.

Frequently Asked Questions

Are top entry litter boxes good for all cats?

No. Most healthy, agile cats between about 1 and 10 years old adapt well and often prefer the privacy. Senior cats, cats with arthritis, and very large cats can struggle with the jump and the tight entry hole. Watch how your cat uses it in the first two weeks, hesitation or crying at the entrance means it’s not a fit.

Can large cats use a top entry litter box?

Some can, but check the entry diameter first. Most standard models run 8 to 9.25 inches across, which fits an average 8 to 12-pound cat comfortably. Cats over roughly 13 pounds do better with a wider entry, like the Arm & Hammer model above, or a box with a removable lid so it can run open when needed.

How do I transition my cat to a top entry box?

Put the new box in the exact spot the old one occupied. Leave the lid off for the first week or two so your cat gets used to the base and the new litter texture, if you’re changing that too. Once they’re using it without hesitation, add the lid. If they stop using it after the lid goes on, take it back off and give it more time, or accept that this particular cat may not be a top entry fit.

Do I need a special litter for these boxes?

No. Standard clumping litter works fine in every model here. Heavier pellet litters are sometimes harder for a textured lid to catch off paws, but they still work. Keep the litter deep enough, around 2 to 3 inches, for normal digging.

How often should I clean the box?

Scoop once a day, minimum. Deep clean the whole box with mild soap and water every two to four weeks. Stainless steel needs less frequent deep cleaning than plastic because it doesn’t absorb odor the same way.

Are these boxes effective at keeping dogs out?

Yes, for most dogs. The elevated entry point is hard for a dog to reach without climbing, and most won’t bother. It’s not foolproof for small, determined dog breeds that can jump, but it stops the vast majority of counter-surfing and litter-box raiding.

Is a top entry litter box good for multiple cats?

It can work, but stick to the one-box-per-cat-plus-one rule regardless of style. Because the enclosed shape limits escape routes, it’s worth pairing a top entry box with at least one open pan in a multi-cat household so a nervous cat always has an option that doesn’t feel like a trap.

Why won’t my cat use the new top entry box?

Usually one of three things: the entry is too tight, the box moved to a new location at the same time it changed shape, or the litter itself changed too. Change one variable at a time. Keep the location the same, keep the litter the same, and give it two full weeks before deciding it’s not working.

🎯 Final Verdict

For most households, the SOUJOY Stainless Steel Litter Box is the strongest overall pick. The steel construction stops odor before it starts and the 37-liter capacity handles large cats without a problem. It costs more than the plastic options here, but it’s likely the last litter box you’ll need to buy for years.

If plastic fits your budget better, the IRIS USA Top Entry Litter Box is the runner-up for good reason: it’s affordable, it works, and it’s been a reliable choice for years. Just remember the one exception that applies to every option on this list: if your cat is a senior, has diagnosed arthritis, or weighs in above 13 pounds or so, an open pan is worth trying before you commit to a covered design.

Whichever one you pick, the daily cleanup difference over an open pan is real. Less time sweeping, less litter on your socks.