7 Best Covered Litter Box for Large Cats Reviews

If your cat is over 15 lbs or just long-bodied, aim for a box with at least 24 inches of internal length. Stainless steel wins on odor and leak resistance; large plastic hooded boxes win on price. Check the “Litter Box Size Chart by Cat Weight” table further down before you buy.

⚡ Quick Verdict

Evaluations focus on internal dimensions, material durability, and odor containment efficiency. We also assess leak resistance, ease of cleaning, assembly quality, and suitability for high-volume, multi-cat use.

Dimensions	23.6″ x 15.7″ x 15.7″
Capacity	80L
Material	Stainless steel
Features	Dog-proof latch, carbon filter

What We Found

This is the box for multi-cat homes or a genuinely big cat. The tray runs 80 liters and 23.6 inches long, so there’s room to dig and turn without hitting a wall. Steel doesn’t stain, doesn’t scratch the way plastic does, and won’t hold a smell after a wipe-down. That non-porous surface is the whole case for buying steel over plastic in the first place.

The 3-in-1 modular build lets you run it open, semi-enclosed, or fully hooded, so you can change the setup if your cat’s preferences change. A dog-proof latch keeps other pets out. Tall walls plus the carbon filter mean less odor escaping the room, and the seams are tight enough that it holds up as a leak-proof litter box even with a heavy digger. It ships with a step board and scoop, so there’s nothing extra to buy on day one.

Build quality is the best of anything on this list. If you’re going to spend more once and be done with it, this is the one.

Who It’s For

Large cats, multi-cat households, and anyone who’s given up on plastic ever staying odor-free. If you want the closest thing to a premium cat litter box on the market right now, start here.

Dimensions	23.6″ x 15.7″ x 16″
Material	Stainless steel
Capacity	Over 20L
Entry	Dual-option

What We Found

Think of this as the Tevila’s little sibling. Same non-porous steel tray, same resistance to staining and odor, smaller price tag. The modular parts snap into either an enclosed or semi-enclosed layout, which matters if your cat is picky about hoods. At 23.6 inches it fits cats up to roughly 25 lbs comfortably.

It comes with a litter mat and a scoop, so setup is quick. Because the tray holds more litter than a standard box, you’re not topping it off every other day. The metal feels solid, not flimsy sheet metal that dents on contact.

For large cats specifically, it checks the three boxes that matter most: size, odor control, and a surface that actually stays clean.

Who It’s For

Owners who want a durable, long-term fix and are done replacing plastic boxes every year because they hold onto smell.

Dimensions	26″ x 23″ x 20″
Filter	Carbon
Entry	Swinging door
Material	Stain-resistant plastic

What We Found

This is Amazon Basics’ hooded model scaled up, and at 26 inches long it’s actually bigger than both steel options above. If floor space isn’t the constraint and you just want the largest plastic hooded box you can find, this is probably it. The swinging door and carbon filter are nothing fancy, but they do the job for day-to-day odor control.

Stain-resistant plastic keeps it looking decent for a while, and the handle plus snap-on lid make weekly cleaning simple. It won’t match steel for long-term odor resistance. Plastic is porous at a microscopic level, and ammonia smell tends to creep back in after several months no matter how well you scrub it.

Still, for the price, the sheer size here is hard to beat if you’re set on a covered, traditional design.

Who It’s For

Owners of large cats who want a lightweight, budget-friendly box without switching to metal.

Dimensions	24″ x 18″ x 17″
Filter	Carbon
Entry	Swinging door
Material	Stain-resistant plastic

What We Found

At 24 inches, this sits between a standard box and the jumbo Amazon Basics model above. The swinging door and pre-installed carbon filter handle everyday odor and mess without much fuss. Stain-resistant plastic holds up fine, and a built-in handle makes lifting the hood for cleaning easy.

It’s labeled “large,” but treat that loosely. For a cat pushing 20 lbs or more, it’ll feel tight. For an average to slightly-oversized cat, 24 inches is plenty of room to work with.

Solid construction, nothing flashy. It’s the box you buy when you want more room than a standard tray without paying for the jumbo size.

Who It’s For

Owners of average to slightly larger cats who want a balance of size and privacy without a big price jump.

Filter	Charcoal
Entry	Front flip-top
Material	Plastic
Design	Hooded

What We Found

The flip-top front is the standout feature here. You scoop through the front opening instead of lifting the whole hood off, which saves real time if you’re cleaning twice a day. A built-in charcoal filter handles routine odor, and that matters more in a hooded box than an open one since smell has nowhere to escape on its own.

Plastic construction keeps it light, which is nice for moving it during cleaning but doesn’t hold up to odor the way steel does. The footprint is moderate, not jumbo, so a genuinely large cat will feel cramped inside. Latches are secure but plastic, so don’t force them.

This one prioritizes your cleaning routine over raw interior space, which is a fair tradeoff if your cat isn’t at the extreme end of “large.”

Who It’s For

Owners who want fast daily cleaning and live somewhere odor control matters more than maximum floor space.

Dimensions	21″L x 18.75″W x 17″H
Entry	Front flap door
Material	Plastic
Color	Navy

What We Found

Worth naming honestly: despite “Large” in the title, this one is the smallest box on the list at 21 inches. It’s included because it’s well-built and shows up in searches for large covered boxes, but a genuinely oversized cat will outgrow it fast. The integrated scoop holder and navy finish are nice touches for a smaller footprint box.

The flap door seals in odor well and stops litter from tracking onto your floor. A carrying handle makes it easy to move for cleaning. Build quality matches what you’d expect from IRIS, snap-on buckles that hold the hood firmly in place.

Treat this as a large-for-average-cats box, not a jumbo one, and it’s a fine, budget-friendly pick.

Who It’s For

Owners of small to medium-sized cats who want a compact, private space, especially in apartments where floor space is tight.

Dimensions	21″L x 18.75″W x 17″H
Entry	Front flap door
Material	Plastic
Color	Gray

What We Found

Same box as #6, gray instead of navy, and the same size limitation applies. The neutral color blends into more rooms if that matters to you. It stays lightweight and easy to carry, and the enclosed shell keeps scatter contained well for its size.

Ceiling height is the real limit here. A taller cat will crouch more than it should to use it comfortably. Snap-on functionality is consistent with the rest of the IRIS lineup, and the scoop storage is a small but genuinely useful extra.

A fine pick if your cat is on the smaller side of “large” and you want a tidy, enclosed setup that doesn’t eat much floor space.

Who It’s For

Owners who want a neutral-colored, enclosed box for a smaller cat and value portability over interior space.

What to Look For Before Buying

Picking the right box for a large cat comes down to four things: size, material, odor control, and how easy it is to clean. Get those right and everything else is preference.

Prioritize Internal Dimensions

Measure your cat from nose to the base of the tail, not including the tail. Multiply by 1.5 and that’s roughly the internal length you need. A cramped box is the single most common reason cats start going outside the tray. When in doubt, buy the box your floor space allows, not the one that matches a “standard large” label on the packaging, since those labels aren’t standardized between brands.

Consider Material Durability

Plastic is cheap upfront but porous at a microscopic level, so odor works its way into the surface after a few months no matter how often you scrub it. Stainless steel doesn’t have that problem. It’s non-porous, resists scratching, and wipes clean in seconds. It costs more, and it’s colder to sit in during winter, but it lasts years longer than plastic under daily use.

Check for a Leak-Proof, Sealed Design

A leak-proof litter box has a tray with high, sealed walls and a lid that fits snugly against the base, so urine and litter don’t seep out at the seams during vigorous digging. Big cats dig harder and displace more litter than small ones, so this matters more as your cat’s size goes up. Look for a molded one-piece tray or tight-fitting modular panels rather than a lid that just rests loosely on top of the base.

Evaluate Odor Management

Enclosed designs with a carbon or charcoal filter trap smell before it reaches the room. Ventilation matters just as much as the filter itself; a sealed box with no airflow can trap ammonia and dust inside, which isn’t pleasant for your cat either. Pair a good filter with a clumping, low-dust litter and scoop daily for the best results.

Assess Ease of Cleaning

Daily scooping should take under a minute. Flip-tops and removable hoods cut cleaning time significantly compared to lifting a whole cover off. Make sure you can reach every corner of the tray with a scoop; boxes with tight interior corners tend to accumulate clumps you’ll miss.

A Quick Pre-Purchase Checklist

• Internal length is at least 1.5x your cat’s body length
• Walls and lid seal tightly, no gaps at the seams
• Material is either stainless steel or thick, stain-resistant plastic
• Entry point is wide enough for your cat to walk in without ducking
• Filter or ventilation is present if the box is fully enclosed
• Every interior corner is reachable with a standard scoop

Frequently Asked Questions

Is a stainless steel box worth the cost?

Yes, for most large-cat owners. Steel doesn’t hold odor the way plastic does, and it resists the scratches where bacteria tend to build up. A well-made stainless box lasts years; plastic boxes usually get replaced every 12 to 18 months once the odor sets in permanently.

How big should a box be for a 20lb cat?

Aim for at least 24 inches of internal length, and go to 26 inches if you have the floor space. Prioritize length and width over height. A tall hood doesn’t help a cat that can’t turn around comfortably.

What actually makes a litter box “leak-proof”?

Tall, sealed side walls and a base that’s molded as a single piece rather than snapped together from panels. A leak-proof design keeps urine from wicking out through seams during heavy digging, which matters more with large, powerful cats than with smaller ones. Modular boxes can still be leak-proof if the panels lock tightly; check reviews for reports of leaking at the corners before buying.

Do hooded boxes trap too much dust?

They can, if the box has no vents and a weak filter. Choose one with a carbon or charcoal filter plus at least a small vent gap, and pair it with a low-dust clumping litter to cut the problem down further.

Are modular boxes easy to assemble?

Most snap together in under 10 minutes with no tools. Follow the instructions for the panel order; skipping a step is the usual cause of a gap that leaks later.

Will my cat use a covered box?

Most cats adjust fine and often prefer the privacy. Shy or anxious cats sometimes reject a hood at first. If that happens, try the box open for a week or two before adding the lid, so your cat associates it with the tray before the enclosure.

Can I use my own litter liners or bags in these boxes?

You can, though most cats with strong nails will shred a thin liner within a week or two, especially in a large box with more digging room. If you go this route, buy heavier-gauge liners rated for large boxes rather than standard ones, and expect to replace them more often than the marketing promises.

What counts as a “premium” cat litter box?

In this category, premium usually means stainless steel or another non-porous material, a sealed leak-proof tray, a real carbon filter instead of a scented plastic vent, and hardware (latches, handles) rated to hold up under daily use for years. The Tevila box above is the closest thing to premium on this list.

🎯 Final Verdict

Buy the Tevila Extra Large Stainless Steel box if you want one purchase that solves the size, odor, and leak problem all at once. It costs more than plastic, and it’s worth it for a genuinely large cat or a multi-cat home. If you’d rather stick with plastic and save money upfront, the 26-inch Amazon Basics model is the most spacious option here and a reasonable runner-up.

Whichever you pick, size the box to your specific cat using the chart above rather than trusting the word “large” on the packaging. That single decision prevents more litter box problems than any filter or design feature ever will.