Covered Corner Litter Boxes That Save Space

⚡ Quick Verdict

If you need	Pick	Why
A large or heavy cat	Gimars XXXL (9.5/10)	100L interior, 27″ x 20″ x 17″ body, 180-degree flip-top lid.
Plastic boxes that keep holding smell	Gimars XXXL (9.5/10)	Non-porous stainless steel doesn’t soak up urine and wipes clean.
A kitten or medium cat in a small room	IRIS USA, Dark Gray (8.5/10)	21″ x 16.125″ x 14.25″ triangular footprint, retractable hood, 8.5″ x 8″ entry.
Odor as the main problem	Nature’s Miracle Hooded Corner (8.1/10)	Built-in charcoal filter and a non-stick surface that keeps litter from caking on.
A roomy box, corner shape optional	Amazon Basics (7.8/10)	26″ x 23″ x 20″ body, carbon filter, built-in handle.
Travel or short-term housing	Foldable Litter Box (7.5/10)	Folds down and switches between open, high-fence, and enclosed modes. 12 lb limit.

Image	Product	Score	Link
	Gimars XXXL Stainless Steel Enclosed Corner Cat Litter Box 🏆 Editor’s Pick	9.5/10	View on Amazon Free Shipping & 30-Day Returns
	IRIS USA Large Corner Cat Litter Box, Space Saver, Dark Gray 🥈 Runner-Up	8.5/10	View on Amazon Free Shipping & 30-Day Returns
	IRIS USA Large Corner Cat Litter Box, Space Saver, Navy/White	8.2/10	View on Amazon Free Shipping & 30-Day Returns
	Nature’s Miracle Hooded Corner Litter Box, With Odor Control	8.1/10	View on Amazon Free Shipping & 30-Day Returns
	Amazon Basics Cat Litter Box with Lid, No-Mess 👍 Roomy Non-Corner Pick	7.8/10	View on Amazon Free Shipping & 30-Day Returns
	IRIS USA Large Corner Cat Litter Box, Space Saver, Gray	7.6/10	View on Amazon Free Shipping & 30-Day Returns
	Foldable Cat Litter Box, Fully Enclosed Litter Box with Lid	7.5/10	View on Amazon Free Shipping & 30-Day Returns

📋 How We Evaluated

We scored build durability, odor management, and space efficiency first. Then we weighed how easy each box is to scoop and clean, how well it works for the cat, and what you get for the money, based on each model’s design and features.

Type	How it works	On this list
Triangular hooded corner box	Diagonal front, hood, and an entry flap or door. Uses the corner’s dead space.	IRIS USA (3 listings), Nature’s Miracle
Stainless steel corner enclosure	Metal body with a flip-top lid and a much larger interior.	Gimars XXXL
Standard covered box in a corner	Rectangular footprint. It fits a corner but doesn’t use the space as efficiently.	Amazon Basics
Foldable, convertible box	Collapses for storage and switches between open, high-fence, and enclosed modes.	Foldable Cat Litter Box

Factor	Triangular corner box	Standard rectangular box
Floor space	Sits in the corner and leaves the walkway open.	Sticks out into the room.
Room inside	Less usable floor than a rectangle with the same longest side, so big cats run out of space sooner.	More usable floor for the same outside length.
Placement	Needs two walls that meet.	Goes almost anywhere.
Privacy	Two walls plus a hood. Some cats like that, and some feel boxed in.	Hood only, so the cat sees more of the room.

[IMAGE PLACEHOLDER]
Top-down diagram: a triangular corner box and a rectangular box in the same corner, with the wasted floor shaded on the rectangular one.
Suggested alt text: Floor plan comparing a triangular corner litter box with a standard rectangular box in a room corner

What We Found

The Gimars is a 27″ x 20″ x 17″ stainless steel box with a 100L interior, and the extra room is the main reason to buy it. A large cat can turn around inside without brushing the walls, which the smaller plastic corner boxes on this list can’t offer. Stainless steel is non-porous, so urine doesn’t soak into the walls the way it can into scratched plastic, and the metal wipes clean.

The 180-degree flip-top lid opens the whole box, which makes scooping and deep cleaning a one-handed job. The triangular shape fits a bedroom or laundry room corner, and the included litter mat catches some of what your cat kicks out.

A charcoal bag inside helps with odor. It doesn’t replace daily scooping.

Who It’s For

Owners of large cats, and anyone whose plastic boxes hold smell no matter how hard they scrub. In a multi-cat home it works as one of your boxes, but you still need one per cat plus a spare.

What We Found

The IRIS USA Large Corner Cat Litter Box uses a triangular footprint, 21″ long by 16.125″ wide, to fit into a corner and leave the walkway open. The dark gray finish blends into most rooms.

The retractable hood is the feature to look at. You slide it back to scoop, so daily cleaning doesn’t mean lifting off the whole lid. The flap door keeps litter and some smell inside the box.

The body is lightweight plastic that wipes clean. At 14.25″ tall with an 8.5″ x 8″ entry, it fits kittens and medium cats, and anything bigger will feel cramped. There’s no charcoal filter, so odor control comes from the hood and a daily scoop.

Who It’s For

Kittens and medium-sized cats in smaller homes, and owners who want the litter area tucked into a corner.

What We Found

The Navy/White model has the same 21″ x 16.125″ x 14.25″ corner-fit shape as the gray IRIS USA boxes in this list. The main difference we can point to is color. The two-tone finish looks more like home decor than a utility item.

The flap door keeps litter from spilling into the room, and the retractable hood lets you scoop without lifting off the lid. The plastic resists stains and wipes down fast.

There’s no charcoal filter. The enclosure holds smell in reasonably well for one small cat, but a bigger cat or a second one will outgrow it.

Who It’s For

Owners of kittens or medium cats who want a corner box that looks less like a litter box, in an apartment where a standard pan would stick out.

What We Found

Nature’s Miracle makes a hooded corner box built around odor. The built-in charcoal filter matters more in an enclosed box than an open one, because smell has nowhere else to go. The non-stick surface coating cuts down on caked-on litter, so rinsing takes less scrubbing.

The hood gives your cat privacy, and the corner shape fits into a room junction that would otherwise sit empty.

The brand is better known for stain and odor removal than for litter boxes, and the box follows that focus on cleanliness.

Who It’s For

Owners fighting odor buildup or stuck-on litter who want a straightforward corner design from a known brand.

What We Found

The Amazon Basics box isn’t a corner-specific design. It’s a standard enclosed box with a carbon filter, and we included it because it fits a corner and because its 26″ x 23″ x 20″ body gives a medium or large cat more room than any of the IRIS USA boxes.

The built-in handle makes it easy to carry to the tub for a deep clean. The plastic resists stains and wipes clean, though like any plastic it can hold odor over time. It does the job without extras.

Who It’s For

Owners who want simple containment and odor control for a medium-to-large cat and don’t need a triangular shape.

What We Found

The gray IRIS USA corner box has the same 21″ x 16.125″ x 14.25″ body as the other two IRIS listings here, and it’s the most basic of the group. It’s an entry-level way to claim back floor space in a small home.

The retractable hood is the highlight, since you scoop without taking the unit apart. The plastic body is light and rinses out easily, and the flap door works as a simple barrier against scatter.

There’s no charcoal filter. The plain design is easy to keep clean and suits owners who want the basics.

Who It’s For

Owners of kittens and medium-sized cats who need to save space, in quiet corners where a plain box is fine.

What We Found

This foldable box isn’t a corner-specific design, so treat it as a flexible small box that can go in a corner. It switches between open, high-fence, and fully enclosed modes, which lets you match it to what your cat tolerates. It also folds down for travel or for storage in a small apartment.

A drawer system lets you pull out the litter pan for scooping instead of reaching in. The included cat-ear accessory is cosmetic. A deodorization bag handles smell.

The 12 lb weight limit rules out large cats, and the plastic isn’t built for heavy ones.

Who It’s For

Travelers, people in temporary housing, and owners of kittens or small cats who may want to change the box’s configuration.

How to Choose the Right Size Corner Litter Box

Size is where corner boxes go wrong most often. The triangular shape hides how little usable floor a small box has, and cats that feel cramped start missing the pan. Five minutes with a tape measure prevents that.

1. Measure your cat. Run a soft tape from the nose to the base of the tail. A common vet guideline is a box about 1.5 times that length. A cat who measures 16 inches wants roughly 24 inches, which is already longer than the 21-inch IRIS USA boxes on this list.
2. Subtract the walls. Listings give outside dimensions, so the inside is shorter. On a triangular box the sloped front trims it further.
3. Check the entry. The IRIS USA entry is 8.5″ wide by 8″ high. That suits kittens and medium cats. A large cat will have to duck and squeeze.
4. Check the weight limit. The foldable box lists 12 lbs. Most others don’t state one, so use the interior length as your guide.
5. Tape out the footprint. Mark 21″ x 16.125″ for an IRIS USA, 27″ x 20″ for the Gimars, or 26″ x 23″ for the Amazon Basics on your floor. Make sure the hood can open without hitting a wall, shelf, or radiator.

For senior or mobility-limited cats, the height of the entry matters more than the size of the box. Browse our Low Entry Covered Litter Box guide before you commit to any of the boxes above.

Pre-Purchase Checklist

• ☐ Cat’s nose-to-tail-base length multiplied by 1.5 fits inside the box’s interior length.
• ☐ Cat’s weight is under the box’s stated limit, if it has one.
• ☐ The corner is clear for the full footprint plus the hood or lid swing.
• ☐ Entry height and width suit your cat’s size and age.
• ☐ Replacement filters are available and priced.
• ☐ There’s room for a litter mat at the entry.

What to Look For Before Buying

Four things decide whether a corner box works in your home: size, material, odor control, and how easy it is to scoop. Whether the box is covered at all is a fifth, and it depends on your cat.

Size and Entry Height

Your cat needs room to stand up and turn around completely. A box that’s too small leads to cats avoiding it or missing the litter. Check the door dimensions too, because a cat that feels trapped on the way in or out will stop using the box. Use the sizing steps above to check before you order.

Material and Hygiene

Plastic is light and affordable, but it scratches, and urine settles into scratches and holds odor. Stainless steel is non-porous, so nothing soaks in and it wipes clean. It costs more and it’s louder. If you buy plastic, a non-stick coating like the one on the Nature’s Miracle box makes maintenance easier.

Odor Control

Enclosed designs hold smell in, which means they depend on airflow and filtration. Look for a charcoal or carbon filter you can replace, since filters wear out. Even a good one doesn’t replace daily scooping.

Airflow matters for your cat’s comfort as well as the smell.

Cleaning and Access

You’ll scoop every day, so pick a box with an accessible lid or door. Flip-top and retractable hoods cut the time compared with fixed lids. A drawer system lets you reach the litter pan without lifting off the whole enclosure.

Covered or Open?

A hood holds in scatter and hides the pan. It also traps smell inside the box, and cats notice smell far more than we do. Some cats refuse hooded boxes for that reason. If your cat starts going outside the box after a switch, take the hood or flap off for a couple of weeks before you write the box off.

A cat that used the box reliably and suddenly stops is a different problem. Call your vet, because litter box avoidance is often an early sign of a urinary issue.

Where to Put a Corner Litter Box and Keep It Fresh

1. Pick a quiet corner. Stay away from food and water bowls, and from anything that switches on with a bang, like a washer or a furnace vent.
2. Face the opening toward the room. Your cat should be able to see who’s coming and leave without turning around.
3. Put a litter mat at the entry. It catches granules before they reach the floor.
4. Keep the old box out for a week. If you’re replacing an open pan, leave it beside the new one until you see your cat using the new box.
5. Scoop daily. Every two to four weeks, dump everything and wash the pan with mild soap and water. Skip ammonia-based cleaners, which smell like urine to a cat.
6. Replace the filter on the maker’s schedule. If you can smell the box from across the room, the filter is done whatever the calendar says.

For outdoor setups, see our Covered Outdoor Litter Box guide.

Common Problems and Fixes

Where to Buy a Corner Litter Box

Every box in this guide links to an Amazon listing. If you’d rather see one in person, PetSmart, Petco, Walmart, and Target all sell litter boxes, but shelf selection varies by store and changes through the year. We haven’t confirmed that any of these seven boxes is stocked at a specific PetSmart or Petco location, so check the store’s website or call before you drive over.

Wherever you buy, take your corner measurements with you and compare them with the listed dimensions, not the photo.

Frequently Asked Questions

What is a covered corner litter box?

It’s a hooded litter pan shaped to fit where two walls meet. The hood holds in scatter and gives your cat privacy, and the corner placement keeps the walkway clear. Most are triangular. A few are rectangular boxes that simply fit a corner.

Are corner litter boxes suitable for large cats?

Most triangular plastic corner boxes suit kittens and small to medium cats. The Gimars XXXL is the large-cat option on this list, with a 100L interior. Measure your cat from nose to base of tail, multiply by 1.5, and compare that with the box’s inside length, not the outside size in the listing.

Do cats like corner litter boxes?

Some do and some don’t. Cats want privacy and a clear way out, and two walls plus a hood can feel boxed in to a nervous cat. If yours hesitates, take the hood or flap off for a couple of weeks and leave the old box out beside it. If a cat that used the box reliably suddenly stops, call your vet.

Are covered corner litter boxes better than open ones?

Covered boxes hold in scatter and hide the pan. Open boxes ventilate better and suit cats that dislike hoods. You’re trading mess and looks against your cat’s comfort, and only your cat can settle it. If you’re unsure, start with the hood off.

Where can I buy a corner litter box, and does PetSmart sell them?

Every box here links to an Amazon listing. PetSmart, Petco, Walmart, and Target sell litter boxes too, but selection varies by store and changes over time. We haven’t confirmed that these seven are stocked at any given store, so check the store’s website or call first.

How much floor space does a corner litter box need?

The IRIS USA boxes measure 21″ x 16.125″, the Gimars is 27″ x 20″, and the Amazon Basics is 26″ x 23″. Add room above and beside the box so the hood can open and you can scoop.

How many litter boxes do I need?

The standard guideline is one box per cat plus one extra. A single corner box, even the 100L Gimars, doesn’t cover two cats.

How often should I change the charcoal filter?

Follow the maker’s schedule. Thirty days is a common interval for charcoal filters, and some brands say longer. If you can smell the box from across the room, the filter is spent whatever the date.

Does the enclosed design stop all litter tracking?

No. Enclosed boxes cut scatter, but cats still carry granules out on their paws. A litter mat outside the entry catches much of it, and the two together protect your floors better than either one alone.

Is stainless steel worth the extra cost?

Stainless steel doesn’t soak up urine, wipes clean, and can’t hold odor in scratched pits the way plastic can. That’s the case for it if smell is your problem or your cat is large. The costs are a higher price and a metallic sound when your cat digs. A small cat with a daily scoop can do fine in plastic for less.

Can I use these in a living room?

Yes. A hooded corner box hides the pan and holds in scatter, and the corner keeps it out of the walkway. It won’t make a room odor-free, so scoop daily. Choose a quiet corner away from food bowls and doors that slam.

🎯 Final Verdict

Buy the Gimars XXXL Stainless Steel Enclosed Corner Cat Litter Box if your cat is large, or if plastic boxes have started to smell no matter how often you scoop. Expect to pay more than for plastic, and expect some noise. The trade buys you a 100L interior and a surface that wipes clean.

Buy an IRIS USA Large Corner Cat Litter Box if your cat is a kitten or a medium adult and floor space is the problem. If you’d rather skip the triangular shape, the Amazon Basics box gives a medium-to-large cat more room at 26″ x 23″ x 20″, at the cost of a bigger footprint.