Top Entry Stainless Steel Litter Box: What to Consider?

📝 Before You Buy

Last updated September 2026. This post contains affiliate links to Amazon. If you buy through them, I may earn a commission at no extra cost to you. Prices and stock change often, so check the current listing before you order.

[ADD YOUR OWN: how many cats you have, which litter you used, and how long you tested each box. First-hand details are what set this post apart.]

⚡ Quick Verdict

[IMAGE PLACEHOLDER: Hero photo of the Kettnjoy top entry stainless steel litter box in a real room. Suggested alt text: “top entry stainless steel litter box in a living room”]

📑 In This Guide

Top picks at a glance | Spec comparison | Why choose stainless steel | Detailed reviews | What to look for | Transition steps | Cleaning | Troubleshooting | FAQ | Final verdict

Image	Product	Score	Link
	Kettnjoy Top Entry Cat Litter Box with Lid, Stainless Steel 🏆 Editor’s Pick	9.4/10	View on AmazonFree Shipping & 30-Day Returns
	ZOMISIA Stainless Steel Cat Litter Box, Extra Large Covered 🥈 Runner-Up	9.2/10	View on AmazonFree Shipping & 30-Day Returns
	Kettnjoy Top Entry Cat Litter Box with Lid, Stainless Steel Larger Kettnjoy model, listed at 65 liters	9.0/10	View on AmazonFree Shipping & 30-Day Returns
	URPOWER Extra Large Stainless Steel Litter Box with Lid for	8.8/10	View on AmazonFree Shipping & 30-Day Returns
	Stainless Steel Cat Litter Box with Lid, High-Sided, All-Met	8.7/10	View on AmazonFree Shipping & 30-Day Returns
	SOUJOY Stainless Steel Cat Litter Box with Lid, Extra Large 📦 Best for Large Cats	8.5/10	View on AmazonFree Shipping & 30-Day Returns

If you need…	Go with	Why
A senior cat or a heavy tracker	Kettnjoy (25 L)	Sloped entry plus a pedal that cleans paws.
The most litter capacity	Kettnjoy (65 L listed)	Biggest listed capacity for large cats and multi-cat homes.
A large cat, mid-size footprint	SOUJOY (37 L)	304 steel with 15.7-inch walls and enclosed or semi-enclosed modes.
Built-in odor filter	ZOMISIA	Sponge filter and leakproof pan-to-lid barrier.
A cat that sprays or pees high	URPOWER (26 L)	15.2-inch enclosed body built to stop spray.
Top and front access in one box	All-metal dual entry	Convertible to an open pan.

Model	Dimensions (in)	Capacity	Material	Entry	Score
Kettnjoy (Editor’s Pick)	24 x 16 x 14	25 L	304 steel	Top + pedal	9.4
ZOMISIA	24.2 x 16.3 x 16	XL (no liter figure)	Thickened steel	Dual	9.2
Kettnjoy (larger)	24 x 16 x 15	65 L	Stainless steel	Top	9.0
URPOWER	23.8 x 16.5 x 15.2	26 L	Stainless steel	Top	8.8
All-metal high-sided	23.6 x 15.7 x 15	Large	Stainless steel	Dual	8.7
SOUJOY	23.6 x 15.7 x 15.7	37 L	304 steel	Top	8.5

📋 How We Evaluated

I compared each box on material build quality, odor resistance, and ease of cleaning. Containment of litter scatter and structural stability also counted, along with how well each one suits different cat sizes. Specific checks: steel grade, wall height, lid seal, entry design, and how many parts you have to wash. [ADD YOUR OWN: any hands-on testing notes, such as pedal performance or lid fit after a few weeks.]

Factor	Stainless steel	Plastic
Odor absorption	Non-porous, so smells don’t soak in	Scratches trap urine and bacteria over time
Durability	Resists scratches and stains; lasts years	Scratches and warps with age
Cleaning	Rinse or wipe; clumps release easily	Needs harder scrubbing once scratched
Upfront cost	Higher	Lower
Noise and feel	Scoop can scrape louder on metal	Quieter, softer scoop contact
Weight	Heavier, so it stays put	Lighter, and it slides more

[IMAGE PLACEHOLDER: Simple diagram comparing top entry and front entry litter box paths. Suggested alt text: “top entry vs front entry litter box comparison diagram”]

Concern	Top entry	Front entry
Litter scatter	Much lower; cats climb over the edge	Higher; litter can kick out the door
Spraying or high-peeing	Tall walls and a lid contain it	Spray can escape through the opening
Senior cats or arthritis	Hard unless the box has a slope or dual entry	Easier to step in and out
Kittens	Often too high at first	Easier
Privacy	Enclosed and quiet	More open to household traffic
Checking urine and stool	Harder to see inside	Easier

What We Found

The sloped top and pedal section are the whole point of this design. Cats step across the pedal on the way out, which knocks a good share of litter off their paws before it reaches your floor. The 14-inch walls keep most digging and spraying inside, and the slope means a cat with stiff joints doesn’t face a straight vertical jump. If you want the short version of why this covered litter box with top entry tops the list, that’s it.

The body is 304 stainless steel. The lid overlaps the base and locks down, so a heavy cat bumping the corner won’t shift it. Silent non-slip pads sit underneath, which keeps the unit from sliding on tile and protects the floor from scratches.

The tradeoffs are real. At 25 liters it holds less than the biggest boxes here, you have to assemble several parts, and the top opening is smaller than an open pan. That last point matters if your cat is large or nervous in tight spaces.

Who It’s For

Best for senior cats or cats with joint trouble who can’t manage a high jump, and for owners who are tired of finding litter in the hallway. The pedal works as a paw cleaner, so tracking drops even if it doesn’t vanish.

What We Found

ZOMISIA pairs a dual-exit layout with a sponge filter for odor control. The thickened stainless steel is rustproof and scratch-resistant, so it holds up to daily scooping without going cloudy.

A leakproof barrier sits between the pan and the lid, which keeps urine from creeping out at the seam. At 24.2 inches long, there’s enough room for most cats to turn around. A top handle and a dedicated scoop holder make daily upkeep quick.

The spec list gives capacity as “XL” with no liter figure, so measure your space and compare it against the 37-liter SOUJOY and the 65-liter Kettnjoy before you buy. Price is also higher than the basic models.

Who It’s For

Best for owners who want tighter odor management and a cleaner look in a living space, and for anyone who likes having two exit points.

What We Found

This one is built for volume. The listing puts capacity at 65 liters, the biggest number on this page by a wide margin, and says it suits cats up to 20 pounds. That makes it the obvious pick for multi-cat homes and big breeds that need room to dig.

Walls are 15 inches high, so enthusiastic diggers keep their litter inside. The stainless steel surface is smooth enough to scrape clean without much effort. A locking lid stays put during use, and the scoop and hook give you somewhere to park the tools.

It comes with two catches. It takes a lot of litter to fill, and the lid is heavy enough that you’ll want two hands when you lift it. Cats with mobility problems will struggle with the climb, since there’s no slope here.

Who It’s For

Best for owners of large breeds or households with more than one cat, and for anyone who wants to scoop less often and keep one durable box for years.

What We Found

URPOWER targets the high-peeing, wall-spraying cat. The 15.2-inch height and enclosed shape keep spray off your baseboards, and the stainless steel surface is non-stick, so a damp cloth handles most cleanup.

The triple filter pedal cleans paws on the way out. You can also run the box fully enclosed or semi-enclosed, which helps if your cat needs time to accept a lid.

Capacity is 26 liters, a step below the biggest boxes here. The pedal adds a few pieces to wash, and some owners will find the lid fits tightly.

Who It’s For

Best for diggers and cats that spray urine against walls, and for owners who want to get away from the smell plastic picks up over time.

[IMAGE PLACEHOLDER: Photo of the URPOWER pedal and lid up close. Suggested alt text: “URPOWER top entry stainless steel litter box pedal detail”]

What We Found

Cats can enter from the front or the top, so one box suits different habits and mobility levels. If you’re unsure whether your cat wants a top entry or front entry litter box, this hedges the bet. The lid is metal too, which cuts odor retention compared with plastic.

High sides help prevent leaks, and the modular build lets you convert it into an open pan if you need to. Anti-slip foot pads add stability and dampen noise on hard floors.

Front access is easier on older cats but lets more litter escape. That’s the price of flexibility.

Who It’s For

Best for homes where cats disagree about entry style, or where you want to switch between top and front access later. Also fits owners who put odor control first.

What We Found

SOUJOY offers 37 liters of capacity in 304 stainless steel, which makes it a solid mid-size pick for big cats. The basin resists scratches and odor better than standard plastic.

The 15.7-inch walls handle cats that pee standing up. A modular design lets you run the box fully enclosed or semi-enclosed, and a buckle system makes disassembly straightforward, though it takes some hand strength.

The footprint is large, so measure first. There’s no integrated odor filter, which is the main gap against ZOMISIA and URPOWER. The scoop and holder are included.

Who It’s For

Best for large breeds and busy owners who want longer intervals between full changes. Also a fit for multi-cat homes that need a non-porous surface.

What to Look For Before Buying a Top Entry Stainless Steel Litter Box

Price matters less than fit. Get size, access, and cleaning right, and the box lasts. Get them wrong and you’ll have a $100 planter.

Check Size and Capacity

The common vet guideline is a box about 1.5 times your cat’s body length. Measure from nose to the base of the tail, then multiply. Every box here is roughly 24 inches long, so that works for cats up to about 16 inches of body length. Bigger cats need the wider models. Also measure the spot where the box will sit, including headroom if it’s under a shelf.

1. Measure your cat from nose to base of tail.
2. Multiply by 1.5 to get the minimum interior length.
3. Measure the floor space and the vertical clearance.
4. Compare against the dimensions in the table above.

Value Material Quality

Look for 304 stainless steel, which resists rust better than cheaper grades. Some sellers say only “stainless steel” without a grade, so ask or check the listing. Thicker sheet resists dents. Avoid boxes with plastic-lined parts, since those can trap odor again.

Rate Accessibility

Senior cats and cats with joint problems can’t always manage a tall entry. Look for sloped sides or a second entry point. Then check that the lid is secure but easy for you to lift.

Verify Leak Protection

Check for a tight overlap between lid and base. A good seal stops urine from seeping onto the floor. High walls are non-negotiable for cats that spray.

Consider Extras

• Pedal or ramp: helps clean paws.
• Odor filter: adds a replacement cost.
• Anti-slip pads: keep the box in place on tile.
• Scoop holder: small, but you’ll use it daily.
• Modular lid: lets you run semi-enclosed while your cat adjusts.

Quick Checklist

• ☐ Steel grade listed (304 preferred)
• ☐ Interior length at least 1.5 x your cat’s body length
• ☐ Entry height your cat can manage
• ☐ Lid overlaps the base and locks
• ☐ Wall height matches your cat’s spray or dig habits
• ☐ Fits your floor space and clearance
• ☐ Parts are easy to take apart and wash

How to Transition Your Cat to a Top Entry Litter Box

Cats resist change, and a covered box with a high entry is a big one. Go slowly. A rushed switch is the main reason cats refuse a new box.

1. Set the new box next to the old one. Don’t remove the old one yet.
2. Start with the lid off, or use the semi-enclosed mode on models that offer it (URPOWER, the all-metal dual entry, and SOUJOY).
3. Use the same litter at the same depth as before. Two to three inches is a common starting point.
4. Mix in a scoop of used litter so the box smells familiar.
5. Put the lid on or switch to top entry only after your cat uses the box every time.
6. Remove the old box once the new one is used consistently for several days.
7. If your cat starts going elsewhere, go back one step.

Who Should Skip a Top Entry Box

Top entry isn’t for everyone. Skip it, or pick the sloped Kettnjoy or a dual-entry model, if your cat is a young kitten, has arthritis, is recovering from surgery, or gets anxious in enclosed spaces. Front entry works better for those cats. If a cat that used to be fine suddenly avoids the box, call your vet. A urinary problem can look like a litter box problem.

How to Clean a Stainless Steel Litter Box

Steel is easy to keep clean, but a few habits protect the finish and keep the smell down.

1. Scoop clumps and waste every day.
2. Empty the box completely on a regular schedule. Many owners with clumping litter do this every two to four weeks, and more often with several cats.
3. Wash with warm water and mild, unscented dish soap. Use a soft sponge.
4. For stubborn odor or mineral buildup, wipe with diluted white vinegar, then rinse well.
5. Dry the box fully before refilling. Damp steel makes litter stick.
6. Refill with two to three inches of litter.

Avoid steel wool and abrasive powders, which scratch the surface. Skip chlorine bleach too. It can mark stainless steel, and it should never mix with urine residue or ammonia-based cleaners. Replace sponge or pedal filters as the maker recommends.

Which Litter Works Best in a Stainless Steel Box

• Clumping clay: Releases easily from a smooth steel base, which is where steel beats scratched plastic.
• Tofu or plant-based: Lighter and lower dust. Pair with a pedal to limit tracking.
• Silica crystal: Strong odor control, but some cats dislike the feel.
• Pine pellets: Work well for odor but may scatter more with energetic diggers.

Troubleshooting Common Top Entry Litter Box Problems

Frequently Asked Questions

Are stainless steel litter boxes better than plastic?

Mostly yes. They don’t absorb odors or harbor bacteria the way scratched plastic does, and they last longer. The tradeoffs are a higher price and a scoop that can scrape louder on metal. If you’re replacing plastic boxes every year or two, steel can cost less over time.

How do I clean a stainless steel litter box?

Rinse and wash with warm water and mild dish soap, then dry completely. Clumps release from the smooth surface, so you don’t need a hard scrub. Avoid steel wool and chlorine bleach.

Do cats like top entry boxes?

Many do. They like the privacy and the security. Senior cats and those with mobility problems may prefer a lower entry, so watch your cat and adjust. A gradual switch helps.

Can these boxes handle multiple cats?

Yes, especially the extra-large models listed here. The larger Kettnjoy (65 L listed) and SOUJOY (37 L) have the most room. Scoop daily, and consider one box per cat plus one extra.

Will a stainless steel litter box rust?

High-quality 304 stainless steel resists rust and corrosion, and it should last years if kept clean and dry. Cheaper steel grades can rust when exposed to urine. Skip abrasive cleaners that damage the finish.

Does a top entry litter box reduce litter tracking?

It helps. Cats have to step across a pedal or slope on the way out, and that knocks litter off their paws. It won’t eliminate tracking, so a mat outside the exit still helps.

Is a top entry litter box good for large cats?

It can be, if the interior is big enough. Look for a box at least 1.5 times your cat’s body length, and check the opening size against your cat’s chest. The larger Kettnjoy and SOUJOY are the best fits here.

Are top entry litter boxes good for senior cats?

Usually not, because of the vertical jump. The sloped Kettnjoy and dual-entry models are exceptions. If your senior cat has arthritis, ask your vet before switching.

Can kittens use a top entry litter box?

Young kittens often can’t climb in. Start with a low, open pan and move to a top entry box once your cat is bigger and steady on its feet.

Do stainless steel litter boxes smell?

Less than plastic, because steel doesn’t absorb urine. They still smell if you skip scooping or don’t wash them. Models with a filter, like ZOMISIA, add another layer of control.

What is the best top entry stainless steel litter box for cats that spray?

The URPOWER is built around that use, with a 15.2-inch enclosed body. The Kettnjoy and SOUJOY also have tall walls. A tight lid seal matters as much as wall height.

Are stainless steel litter boxes safe for cats?

Stainless steel is non-porous and generally safe for pet use. Check the listing for the steel grade and avoid boxes with painted or coated interiors that could chip.

🎯 Final Verdict

For most homes, the Kettnjoy Top Entry Litter Box is the clear winner. The slope helps older cats, and the pedal keeps litter off your floor.

If you need a filter and two exits, the ZOMISIA is the stronger alternative, and it has the best odor control here. Here’s how the rest break down:

• Large cat or several cats: the larger Kettnjoy or SOUJOY.
• Cat that sprays: URPOWER.
• Cat with mobility issues: the sloped Kettnjoy or the dual-entry all-metal box.
• Can’t decide on entry style: the all-metal dual entry.

Measure your cat and your floor space first. Most bad purchases come from a box that’s too small.