Reviews Pets

The best cat litter boxes

Side-by-side photos show two cats using litter boxes, with a small tabby kitten in a high-sided gray plastic box on the left and a larger white-and-orange cat using a stainless steel litter box on the right.
The best cat litter boxes include extra-large, low-entry boxes and hygienic stainless steel pans. Sophia Carlisle; Will Fischer/Business Insider
Updated
Read in app

The best cat litter boxes come in many designs, from basic high-sided plastic or stainless steel pans to high-tech, self-cleaning models. Choosing the right one means balancing your cat's preferences with what works best for your home. The ideal litter box will be comfortable for your cat to use and easy for you to maintain.

To find the best options, Insider Reviews reporters tested 39 litter boxes and consulted veterinarians and cat behaviorists about the features that matter most for cats of different ages, sizes, and lifestyles, including seniors, large breeds, and multicat households. Whatever litter box you choose, it should measure at least 1.5 times the length of your cat from nose to base of tail, says Molly DeVoss, certified cat behavior specialist. That's a size many traditional boxes fall short of.

My top pick is the Frisco High Sided Extra Large Cat Litter Box, which our reporters tested in two homes with four different cats. Its roomy size comfortably accommodates many cats, and its 10-inch sides do a great job of containing litter. For larger cats, those with limited mobility, or homes with specific needs, I also recommend several alternatives that strike a good balance between your cat's comfort and your household's needs.

Read more about how Insider Reviews tests and researches pet products.

Our top picks for the best cat litter boxes

Best overall: Frisco High Sided Cat Litter Box, Extra Large - $24 at Chewy

Best low-entry for seniors and kittens: Kitty Go Here Senior Cat Large Litter Box - $50 at Chewy

Best stainless steel: Frisco Stainless Steel Cat Litter Box - $46 at Chewy

Best for large cats: Kitty Go Here Jumbo Litter Box - $75 at Chewy

Best automatic: Whisker Litter-Robot 4 - $699 at Chewy

Best covered: Frisco Hooded Cat Litter Box - $34 at Chewy

Best DIY: Sterilite Storage Bin, 41 Quart Clear Plastic Storage Container - $10 at Walmart

Best top-entry: Modkat XL Litter Box - $190 at Chewy

Best overall

frisco litter box
Frisco High Sided Cat Litter Box, Extra Large

This no-frills litter box delivers exactly what your cat needs — a comfortably sized interior and lower entry — without any unnecessary extras that can turn cats away or make cleaning harder.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Uncovered design
Check mark icon A check mark. It indicates a confirmation of your intended interaction. High sides reduce messes
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Non-stick BPA-free plastic
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Affordable

What we don't like

con icon Two crossed lines that form an 'X'. Low entry may still be too high for mobility-impaired cats

House cats vary in size, but most litter boxes don't provide enough room for them to do their business, including circling and digging. The Frisco High Sided Extra Large Litter Box offers most cats the room they need with a 24-by-18-inch footprint and 10-inch-high sides that help contain mess.

"I appreciate that its high sides prevent litter from scattering outside of the box," says associate home editor Kinsley Searles, whose cat has been using the box for four months. "I have a petite cat, but she's never had issues entering the Frisco litter box." The 5.6-inch entrance might be too high for cats with mobility issues, but you can add a ramp or cut a lower entrance and cover the edges with duct tape to accommodate them.

I also like its simple design. With litter boxes, simpler is better, says Sung and cat behaviorist Daniel "DQ" Quagliozzi, a certified feline behavior and training specialist. With fewer crevices, there are fewer places for urine and odors to build up, which also means there's less scrubbing for you to do. That's important, says Dr. Elena Shirley, lead veterinarian and partner at CityVet in Charlotte Uptown, who recommends replacing the litter weekly and thoroughly cleaning the box with soap and water every four to six weeks. The box is made from smooth, BPA-free, recyclable plastic that resists sticking, which makes daily scooping and deep cleaning quick and easy.

A brown and black tabby cat stands in a beige litter box, pawing at the gray litter in a bathroom corner.
Our top pick from Frisco is also one of the simplest litter boxes you can buy.  Kinsley Searles/Business Insider

This box doesn't come with a cover, and that's another benefit. "Most cats prefer litter boxes that are uncovered," says Samantha Bell, a cat enrichment expert at Best Friends Animal Society. Covers trap ammonia odors, making the box unpleasant for cats. Open boxes also help cats feel more secure with better visibility and easy escape routes.

Best low-entry for seniors and kittens

kittygohere jumbo thumbnail
Kitty Go Here Senior Cat Large Litter Box

With an extra-low entrance, this litter box makes it easy for kittens, senior cats, and those with limited mobility to enter and exit.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Accessible entry for kittens, seniors, and mobility-impaired cats
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Spacious interior accommodates larger cats
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Low rim reduces overexertion risk for jumpers

What we don't like

con icon Two crossed lines that form an 'X'. Litter depth is limited
con icon Two crossed lines that form an 'X'. Litter may spill from the entrance
con icon Two crossed lines that form an 'X'. Large size may make cleaning more challenging (it doesn’t fit in a standard utility sink)

In some cases, short- or long-term medical conditions can influence the best cat litter box choice, Shirley says. DeVoss adds that a box with a low entry is even better than ramps or stairs. My 6-year-old cat, Lyra, has a bad knee and early-onset arthritis, so I prefer low-profile boxes that she can step in and out of comfortably.

The Kitty Go Here Senior Cat Large Litter Box has a 3-inch-tall front entry for easy access. Even with a low entry, some cats — like mine — still hop over the sides. "Cats are masters at hiding their pain," says Dr. Carly Fox, a senior veterinarian at the Schwarzman Animal Medical Center. They may also not recognize their own limitations. That's why I appreciate the short 5-inch rim on this litter box in addition to its low entrance — it can help reduce overexertion, no matter the route taken. That said, I was pleasantly surprised to see my cat gingerly step out through the entrance of this box, perhaps because it's a generous 11 inches wide. DeVoss also says there's no such thing as a litter box that's too big, making this model a great choice for itty-bitty kittens as well.

A black-and-white cat stands in a beige litter box, scratching and digging in the litter with its tail raised.
The Kitty Go Here Senior Cat Large Litter Box has the lowest entry of any litter box we tested.  Janelle Leeson/Business Insider

One drawback of this box is that the low entry limits the litter depth. Some cats prefer digging in a few inches, but the fill line on this box sits at about an inch. I filled it just slightly above the line, and while litter reached the edge of the entry after my cats used it, none actually tumbled out. An aggressive digger, however, will likely cause some litter to spill from the entryway. Shallow litter depth also means less clean litter is available for your cat after they eliminate, so you should scoop the box more frequently. To help manage litter scatter, I recommend pairing the box with a litter mat, such as the Gorilla Grip Cat Litter Trapping Mat.

Best stainless steel litter box

Frisco Stainless Steel Cat Litter Box
Frisco Stainless Steel Cat Litter Box

This litter box is built to last with durable, scratch-resistant stainless steel.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Stainless steel material is super durable
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Nonskid base prevents slipping
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Easy to clean

What we don't like

con icon Two crossed lines that form an 'X'. Some people dislike the sound of cats digging in a stainless steel box
con icon Two crossed lines that form an 'X'. Noise-sensitive cats may be bothered by the sound amplified by the metal box
con icon Two crossed lines that form an 'X'. Senior cats and kittens may have difficulty accessing the box
con icon Two crossed lines that form an 'X'. Some cats may dislike the cold of stainless steel on their paws
con icon Two crossed lines that form an 'X'. Not ideal for large cats

The durable Frisco Stainless Steel Cat Litter Box offers a significant advantage over traditional plastic litter boxes: It resists the scratches that plastic boxes accumulate over time. Those scratches can harbor bacteria and unpleasant odors, even when the box is cleaned regularly.

"Once you see scratches on the bottom of the box, it is time to replace it," DeVoss says. Since plastic boxes are prone to scratches, they typically need to be replaced every six months. To eliminate the need for frequent replacements, DeVoss recommends stainless steel litter boxes that can withstand a cat's claws. The downside of a stainless steel litter box is that it amplifies sound, which can be bothersome to noise-sensitive cats and people.

A white-and-orange cat stands in a stainless steel litter box, digging in litter with its tail raised.
This stainless steel litter box from Frisco is scratch-resistant and easy to clean.  Will Fischer/Business Insider

Priced around $46, the pan offers ample space for small and medium-sized cats at an affordable price. Its nonskid base keeps it firmly in place, even during enthusiastic digging or post-litter-box zoomies. However, it lacks a tapered entry, which may make it tougher for seniors, kittens, or cats with mobility limitations to climb in and out.

Best for large cats

kitty go here jumbo litter pan
Kitty Go Here Jumbo Litter Box
$75

At 28 by 22 inches, this spacious litter pan provides big cats plenty of room to stretch out. It is recommended by one of our experts and is suitable for cats of all ages and needs.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. High ramped sides help decrease litter kicking
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Extra-large size
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Low entry to accommodate cats with arthritis or mobility concerns, including senior cats
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Comes with optional gate to reduce litter scatter

What we don't like

con icon Two crossed lines that form an 'X'. Low entry may increase litter tracking
con icon Two crossed lines that form an 'X'. Only available in one color
con icon Two crossed lines that form an 'X'. Expensive

If you have a large cat, you need an even larger litter box. When a box is too small, your cat might perch on the edge, be smooshed against the sides, unable to turn around, dig outside the box, or worse, go somewhere else, says DeVoss. She recommends the Kitty Go Here Jumbo Litter Box, which is our top pick among the best large litter boxes.

At about $70, it is pricier than other traditional boxes, but DeVoss says its size and functionality are well worth the investment. The box measures more than 1.5 times the length of an 18-inch cat, giving many larger cats room to comfortably stretch out and cover their waste. "Cats are indeed different sizes, so you'll need to measure," she says. Large cat breeds like Ragdolls, Norwegian Forest Cats, and Savannahs are larger than the average kitty, but often still fit comfortably in an extra-large box like this one. For jumbo cats like the Maine Coon, I recommend a larger DIY box, like the Sterilite 41-Quart Storage Bin in this guide.

A gray plastic litter box with a low front entry sits on a hardwood floor, partially filled with light-colored litter against a white wall.
The Kitty Go Here Jumbo Litter Box is designed to accommodate the largest cats.  Sophia Carlisle/Business Insider

The Kitty Go Here Jumbo Litter Box also features relatively high ramped sides to reduce litter scatter from the sides. However, you may want to pair this box with one of the best cat litter mats to catch any stray litter that tumbles from the low entryway. You can also install the included gate to reduce litter scatter, but it does increase the entry height to 4.5 inches from 3.5. Without the gate, we collected 2 tablespoons of scattered litter over three days, and only 1.5 tablespoons with the gate installed.

The pan is made from durable plastic that's easy to clean and has an oversized rim for easy lifting.

Best automatic

Black and white cat inside the Litter Robot 4 with the accompanying app displayed on a smartphone next to it.
Whisker Litter-Robot 4

The Whisker Litter-Robot 4 has a whisper-quiet design and offers ample space for cats of many sizes.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Self-cleans and requires minimal upkeep
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Smart features include app notifications and weight monitoring
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Has odor-locking waste drawer
Check mark icon A check mark. It indicates a confirmation of your intended interaction. 90-day trial and 1-year warranty
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Available in two colors

What we don't like

con icon Two crossed lines that form an 'X'. Takes some time to introduce cats properly
con icon Two crossed lines that form an 'X'. Some cats may be frightened by the shape or automatic cleaning features
con icon Two crossed lines that form an 'X'. Not suitable for kittens under 3 lbs.
con icon Two crossed lines that form an 'X'. Seniors and mobility-challenged cats must climb a tall step to access the box
con icon Two crossed lines that form an 'X'. Expensive, with additional costs for accessories for mobility and for weighing your cat on carpet

The fourth version of Litter-Robot is a reliable machine that cleans itself and notifies you when it's time to empty the waste drawer or replace litter. You can also add a LitterHopper for automated litter replenishment. My cats happily use their Litter-Robot boxes, including previous generations 2 and 3.

The Litter-Robot 4 runs a cleaning cycle a few minutes after a cat leaves the box, so even cats in multi-cat households will never be without a clean litter box. Thanks to laser-light technology, the cylinder stops cycling if a cat enters while the cleaning cycle is running. The machine also weighs your cat every time they enter, recognizing each cat by body weight so owners can assign profiles and monitor individual bathroom activity — one of 11 optional push notifications.

A black-and-white cat climbs into a white automatic litter box, stepping through the circular opening.
Our reporter has been using the Litter-Robot 4 in her home since 2022.  Janelle Leeson/Business Insider

The machine sifts waste into a lined tray that you'll need to empty every week to two times a week, depending on the frequency of use. Even if the waste bin isn't full, emptying it proactively is recommended because cats have a heightened sense of smell. Brains says he received cleaning notifications before they seemed necessary and found that if he shook the drawer to distribute the waste more evenly, the sensor would reset. The "empty" cycle works well to remove all the litter when it needs replacing, but Brains still wipes down stuck-on debris inside and deep cleans the globe every one to three months. Weight monitoring is only accurate when the machine is placed on a hard floor or a Litter-Robot Carpet Tray. Nonetheless, I consider this self-cleaning litter box worthy of the investment.

If your cat is small or has mobility issues, you can add an attachable ramp. However, the ramp still has a 5-inch rise from the floor to the first step, so it won't work for every cat. The biggest downside is the Litter-Robot 4's high cost ($700), but it comes with a one-year warranty. If you or your cat isn't happy with the Litter-Robot 4, you can also return it within 90 days for a refund, although return shipping will be deducted.

To learn more, check out our Whisker Litter-Robot 4 review and our guide to the best automatic litter boxes.

Best covered

Frisco Hooded Cat Litter Box
Frisco Hooded Cat Litter Box, Extra Large

This litter box with a removable hood is easy to modify to fit your cat's preferences.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Can use box uncovered or covered
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Door is removable
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Includes a charcoal filter for odor control
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Available in two colors

What we don't like

con icon Two crossed lines that form an 'X'. May trap odors, making the box less appealing for the cat
con icon Two crossed lines that form an 'X'. Provides less visibility for the cat while using the box
con icon Two crossed lines that form an 'X'. Semiopaque door limits visibility for the cat and creates barrier for entry
con icon Two crossed lines that form an 'X'. May not be suitable for very large cats
con icon Two crossed lines that form an 'X'. Entry may be too high for cats with mobility issues

What a cat desires in a litter box often differs from what appeals to us humans. Case in point, covered litter boxes. While they hide mess and odors from us, they're far from feline-friendly. "Cats dislike covered boxes because this blocks the visual field," says Rachel Geller, a certified cat behavior and retention specialist and founder of All Cats All the Time, Inc. In multi-cat homes and ones with dogs, it's even more important for cats to have a clear view of their surroundings. Plus, the trapped odors inside a covered box can quickly turn it into a place cats avoid.

That said, some cats don't mind a covered box — as long as it's large, clean, and comfortable. That's why I chose the Frisco Extra-Large Hooded Cat Litter Box as the best covered litter box option. It has a larger interior compared to other covered boxes and a removable cover, giving you the flexibility to adjust the setup if your cat is hesitant. With the cover in place, a built-in charcoal filter provides extra odor control between cleanings. Even without the cover, the high sides help contain messes, which is especially useful for cats who tend to "elevator pee."

A gray covered litter box with a translucent front door sits on a hardwood floor near a window and hanging plant.
The Frisco Extra-Large Hooded Cat Litter Box features both a removable door and cover.  Shoshi Parks/Business Insider

The box has a semi-opaque plastic door to help prevent odors from escaping. As you might guess, that just traps smells inside with your cat and can make the space feel even more confining. For these reasons, it's best to remove the door, which easily snaps off.

Best DIY

sterilite storage box thumbnail
Sterilite 41-Quart Storage Bin

This simple storage container is a budget-friendly, spacious alternative to a traditional litter box.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Available in size far bigger than standard litter boxes
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Can customize the design to suit your cat's needs, including a lower entry for cats with mobility concerns
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Affordable

What we don't like

con icon Two crossed lines that form an 'X'. May require DIY modifications
con icon Two crossed lines that form an 'X'. Low sides may result in kicked-out litter
con icon Two crossed lines that form an 'X'. May scratch easier than boxes designed for cats

When it comes to creating a DIY litter box, a wide, flat plastic storage container is an ideal and cost-effective stand-in for a traditional box. In fact, Quagliozzi and Sung often recommend their clients consider this DIY version since many traditional litter boxes are too small for more than one cat to use several times a day.

The Sterilite 41-Quart Storage Box is made from durable, clear plastic. Its interior dimensions of 29 3/8 inches by 18 inches provide a cat with plenty of room to perform natural behaviors like digging and covering their waste. A box this big is especially important for extra-large breeds such as the Maine Coon, the biggest domestic cat, which can reach up to an astonishing 40 inches in length. Because the box is waterproof, it won't leak any excess urine that goes uncaptured by the litter.

With 6-inch-high sides, the box is shallow enough for most cats to enter and exit easily, but you can also cut a low front entry. Use a pair of wire cutters to cut the entrance to your desired height and width, then tap over the edges with duct tape. People with cats that aggressively scratch and kick their litter may need to do more floor cleanup than they would with a litter pan with higher sides.

Best top-entry

Modkat XL Litter Box

The Modkat XL Litter Box gives cats choices with both a top and side entry, and the perforated folding lid helps capture loose litter and allows for easy cleaning.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Has front and top entries
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Perforated folding lid for capturing loose litter and easy cleaning
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Litter scoop included

What we don't like

con icon Two crossed lines that form an 'X'. Covered box may be more likely to trap odors
con icon Two crossed lines that form an 'X'. Included plastic liners are not recommended
con icon Two crossed lines that form an 'X'. Expensive

Sung and Quagliozzi say cats need choices to feel secure, which includes having at least two litter box areas per cat in your home. Having more than one way in and out of a box can also make a big difference. While an uncovered box with unlimited exit routes is best, a covered box with both a top and side entrance gives your cat more control over how they come and go. For this reason, Modkat's XL Litter Box is our top recommendation for the best top-entry litter boxes.

If you'd prefer your cat not use the front entry, you can close the built-in sliding door, though our experts don't recommend it. The lid folds back for easy cleaning, and litter tracked onto the roof returns to the pan through perforations. The box comes with two reusable plastic liners and a scoop. However, Bell advises against using litter box liners. "Cats often get their claws stuck in the liner, tearing a hole in it, which causes them to dislike the box," she says.

A top-down view of a gray covered litter box with a lid that's open on one side, and perforated with an oval opening on the other side.
The Modkat XL Litter Box features two entry points and a litter trapping cover.  Sophia Carlisle/Business Insider

A downside of the Modkat XL is its price, typically $190. It's one of the roomiest top-entry models available, but if you're looking for a larger box, a traditional open-top pan is your best bet.

Our top litter box picks compared

Frisco High Sided Cat Litter Box, Extra LargeKitty Go Here Senior Cat Large Litter BoxFrisco Stainless Steel Cat Litter BoxKitty Go Here Jumbo Litter BoxWhisker Litter-Robot 4Frisco Hooded Cat Litter Box, Extra LargeSterilite 41-Quart Storage BinModkat XL Litter Box
Best forReducing litter scatter, small and average-sized cats Kittens, seniors, and mobility-impaired catsDurability and ease of cleaning, small and average-sized catsLow entry for easy access, large catsYou are unable to scoop the litter box daily, tracking your cat's litter box usageCats that elevator peeLarge cats and multi-cat homes, affordabilityReducing litter scatter
Skip this ifYou need a low entranceLitter scatter is a concern and your cat is able to comfortably use a higher entranceYou or your cat is bothered by the sound of metal being scratchedYou lack a large enough space to place this boxYour cat has mobility issuesYour cat is not comfortable using a covered boxLitter scatter is a concernYou are unable to offer access to the front entrance as well
Length x Width24" x 18"24" x 20"23.4" x 15.5"28" x 22"18" x 19"26" x 18.1"29.4" x 18"21" x 16.5"
High sidesYesNoNoYesYesYesNoYes
Low entryNoYesNoYesNoNoNoNo

What to look for in a cat litter box

The best cat litter boxes are spacious, easy for a cat to access, designed to fit their preferences, and simple for guardians to maintain.

Size: Sung says cats need a space at least 1.5 times their length to scratch at the litter and bury their waste. Many litter pans advertised as "large" or "jumbo" have far smaller dimensions than our top picks. You can determine whether a box is big enough by measuring your cat's length from its nose to the base of its tail and comparing it to the dimensions of the box.

Accessibility: Not every cat is agile or motivated enough to jump up into a litter box, and top-entry boxes can be especially challenging for some cats to access. When selecting a box, consider your cat's mobility needs. Kittens, senior cats, and those with injuries or mobility limitations may benefit from a box with an entry height of about 3 inches or less. If choosing a box with a high entry and sides, look for one made of a material that you can safely modify to create a lower entry that better suits your cat's needs.

Design: Quagliozzi says cats prefer a box that doesn't distract them from their business or require them to contort their body into unnatural positions. Look for boxes that offer easy entry and allow a cat to stand flat on all four paws rather than curved or angled boxes. An open-topped litter pan is the most universally accepted by cats of all types. Some cats may be intimidated by hooded or covered litter boxes, especially if the top is low enough that the cat must crouch to do their business.

Ease of cleaning: In general, boxes with simpler designs are easier to clean. Litter boxes should be scooped at least once a day, though more frequent scooping is ideal. Geller says healthy adult cats typically use the litter box two to five times a day for both peeing and pooping. However, factors like age and health can influence this. Senior cats may urinate more often due to conditions like kidney disease, while kittens usually urinate after each feeding and may poop up to three times a day. If having a cover over your litter pan makes you forget to scoop it daily, then a litter box without a hood is a more hygienic option. If you struggle to scoop your litter box daily, an automatic or smart litter box may be the best option, though even self-cleaning litter boxes still require deep cleaning. Our experts say you'll also need to deep-clean your litter boxes every four to six weeks using water and unscented dish soap.

Material: I included metal and plastic options in this guide to the best cat litter boxes. Plastic litter boxes have a lower upfront cost, but our experts recommend replacing them every six months or at the first sign of scratch marks. DeVoss says that no matter how well the box is cleaned, scratch marks accumulate bacteria and, therefore, odors. On the other hand, stainless steel and metal litter boxes may have a higher initial cost, but they offer a longer lifespan compared to plastic options. However, noise-averse people and cats alike may dislike the sound of cat claws on metal.

How we tested the best cat litter boxes

A beige plastic litter box sits inside a bathtub beneath a chrome faucet, filled with shallow water for cleaning or testing.
The Kitty Go Here Senior Cat Large Litter Box gets a deep-cleaning in our reporter's bathtub.  Janelle Leeson/Business Insider

Over the past five years, we've researched popular litter boxes from major online retailers, selecting models to test based on criteria provided by the experts we consulted. Freelance reporter Shoshi Parks conducted the initial reporting for this guide and tested litter boxes with her two cats. Since then, freelance reporter Janelle Leeson and three Insider Reviews editors and reporters have tested additional boxes with six more cats. Although we haven't tested our DIY pick, it meets our experts' criteria and comes from a trusted brand.

Each litter box we tested was used for at least one month and evaluated using the methods described below. Unless a box required a specific type of litter to operate effectively, testers used their preferred substrates, including some of the best cat litters and best natural cat litters.

Ease of entry test: We measured the sides of each box and the height of any openings, and observed whether our cats appeared to have difficulty accessing the boxes. We also observed how our cats responded to each box, noting which they preferred to use more frequently.

Tracking test: For each litter box we tested, we collected the litter tracked onto the floor over three days and then compared the quantity of litter between boxes.

Cleaning test: We cleaned each litter box twice daily, observing how easy it was to access and remove the waste and how much litter stuck to the bottom and sides of the pan. After a month of use, we thoroughly cleaned each box, disposing of the litter and wiping it out completely. We noted how challenging the boxes were to clean and approximately how long it took.

Size test: For this test, we measured the length of each of our cats when standing in a relaxed position from the nose to the base of the tail. We then measured the length of each of the litter box contenders and compared the numbers. We favored larger litter boxes over smaller ones.

We also interviewed seven experts about feline litter box habits and the qualities to look for in a good litter box.

Dr. Liza Cahn is a veterinarian and consultant for Embrace Pet Insurance. She is also a freelance veterinary writer.

Molly DeVoss is a certified feline training and behavior specialist (CFTBS), certified cat behavior consultant, and Fear Free certified trainer who specializes in using positive reinforcement to modify and prevent unwanted behaviors in cats. She is the founder and owner of Cat Behavior Solutions.

Dr. Mark Freeman is a specialist veterinarian who is board-certified in canine/feline practice through the American Board of Veterinary Practitioners and assistant professor of community practice at Virginia-Maryland College of Veterinary Medicine. Freeman's academic and research interests include feline and canine behavior.

Daniel "DQ" Quagliozzi is a cat behavior consultant and owner of Go Cat Go! in San Francisco, California. For two decades, Quagliozzi has worked with cats at the San Francisco SPCA, San Francisco Animal Care and Control, and through his private practice, Go Cat Go!

Dr. Jamie Richardson is head of veterinary medicine at Small Door Veterinary in New York City. Richardson has worked with animals around the world, from South Africa to Hong Kong. At Small Door Veterinary, her primary interests besides general practice include preventative care, dentistry, and internal medicine.

Dr. Karen Sueda is a board-certified veterinary behaviorist who was practicing at VCA West Los Angeles Animal Hospital when Parks interviewed her. She is also the founder of Karen Sueda Veterinary Behavior Inc., where she uses positive, pet-friendly behavior modification techniques to help pet owners work with their pets.

Dr. Wailani Sung is a board-certified veterinary behaviorist who was the director of behavior and welfare programs at the San Francisco SPCA Veterinary Hospital when Parks interviewed her. She writes on animal behavior for Vetstreet, PetMD, and Healthy Pet magazine.

Meet the expert behind this guide

Janelle Leeson, cats reporter and product tester: I combine rigorous research and reporting, real-world testing, and feline-focused insights to help readers find the best products for their cats. For this guide on litter boxes, I evaluated 39 different boxes based on their use in real homes with actual cats, consulted veterinarians and certified cat behavior specialists to understand what features matter most for cats of all sizes and life stages, and assessed each box for cat-friendliness, ease of cleaning, and odor control. My own cats were part of the testing process, helping me judge how well some of my top picks performed in everyday use.

Cat litter box FAQs

What type of litter box do vets recommend?

There isn't a single best litter box for every cat. Our experts say that most cats prefer open-top litter boxes that provide good airflow, easy entry and exit, unobstructed sightlines, and plenty of room to circle and dig. However, some cats may favor enclosed litter boxes that offer more privacy. Regardless of the style, the litter box should be at least 1.5 times the length of your cat from their nose to the base of the tail. Offering multiple types of litter boxes on different floors of your home and in various rooms gives your cat the opportunity to choose their preferred design and location. Ease of access is also important. "Make sure the sides aren't too high for your cat," says Dr. Jamie Richardson, chief medical officer at Small Door Veterinary in New York City. Boxes with tall sides and ones that are fully enclosed or top-entry can make some cats feel trapped, which may cause them to avoid the box altogether.

Do cats prefer open or hooded litter boxes?

Open-topped litter pans are the most widely accepted boxes by all types of cats. Some cats may feel trapped and be afraid to enter hooded or covered litter boxes, particularly if the interior height is so limited that they need to crouch while eliminating. "If your cat feels vulnerable and unsafe in the litter box, she may not take the time to bury her waste after elimination because she wants to get out of there quickly and prevent being ambushed in the box," Geller says. In some cases, this may lead your cat to avoid the box altogether. Additionally, Bell says covered boxes trap odors, intensifying the smell for cats, which can make them reluctant to use the box. Doors on litter box entrances, especially opaque or swinging ones, can make both matters worse.

What type of cat litter do vets recommend?

According to Dr. Liza Cahn, a veterinarian and consultant for Embrace Pet Insurance, most cats do best with litter that's unscented, clumping, and made of fine grains, such as clay litter. This type of litter closely resembles sand or dirt, which cats might choose to use in the wild.

Can a litter box be too big?

No. "Most cats won't mind a box that is a bit larger than they need, provided you keep it very clean," Richardson says. "The main concern is with litter boxes being too small."

How many litter boxes do I need?

Sung says a good general rule of thumb is to have one litter box per cat plus an extra. Dr. Karen Sueda, a board-certified veterinary behaviorist, notes that some multi-cat households can get by with fewer boxes if they're extra large and scooped at least twice a day. You should also place boxes in different areas throughout your home.

Where should I put my cat's litter box?

Litter boxes should be placed in multiple locations throughout your home, including on each level, and kept away from noisy appliances like washers or dryers that could startle your cat. While you'll want to avoid busy, high-traffic areas, the box should still be close to where your cat likes to spend time with you. Geller says that a cat's field of vision also matters. Rather than placing a litter box tightly in a corner, setting it about 12 inches away from walls can improve your cat's view of their surroundings and help them feel more secure. Richardson also notes that litter boxes should be separated from the feeding areas. "Cats typically don't like to go where they eat," she says.

How often should I clean the litter box?

To keep a cat happily using their litter boxes, our experts recommend scooping them at least once a day, if not several times. In addition to daily maintenance, the litter box should be cleaned with unscented dish soap and water every four to six weeks.

How frequently does a cat use their litter box?

The typical cat uses the litter box as many as half a dozen times a day, urinating two to four times and defecating once or twice. Some cats may go more or less frequently on average. Cleaning your litter boxes at least once a day will help you monitor for medical or behavioral changes that may indicate a health problem, such as feline lower urinary tract disease (FLUTD).

Why is my cat peeing outside the litter box?

"If your cat is urinating or defecating outside of the litter box, see your vet to rule out medical issues, such as urinary tract infection, cystitis, or arthritis," Cahn says. If your cat gets a clean bill of health, she recommends taking a closer look at your litter box setup: Do you have the recommended number of boxes placed in different areas — one per cat, plus one extra? Are the boxes spread throughout your home in easily accessible locations? Do you scoop them daily? Cahn also recommends thoroughly cleaning any soiled areas, offering a variety of litter types (both clumping and non-clumping), reducing stressors, increasing enrichment, and finally, consulting a veterinary behaviorist if needed.

You can purchase logo and accolade licensing to this story here.

Disclosure: Written and researched by the Insider Reviews team. We highlight products and services you might find interesting. If you buy them, we may get a small share of the revenue from the sale from our partners. We may receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising team. We welcome your feedback. Email us at reviews@businessinsider.com.

Read next

I am a freelance reporter for Business Insider’s Reviews team, covering pets and home. For each article, I conduct in-depth research, consult experts, develop comprehensive testing methodologies, and test products in my own home, including with my two cats.My areas of expertiseMy main area of expertise is in pet care, with a specific focus on cats. As a lifelong cat guardian, I aim to help readers better understand their felines so they can provide the best possible care. In 2026, I also began contributing to the home vertical.No matter the topic — whether I’m testing smoke detectors, reviewing litter boxes, or reporting on feline nutrition — I bring the same passion for deep research, objective testing, and consulting the most credible experts in the field.What brings me the most joy, though, is weaving my own lived experience into the work. My two cats are featured throughout the tested guides I’ve written, serving as both inspiration and quality control: If it’s not good enough for them, it’s not good enough to recommend. My own chickens even made a cameo in my guide to the best chicken feed. My experienceI joined Business Insider as a freelance reporter in 2023, after first being interviewed about my experience hiking with cats, a journey that feels full circle and deeply humbling. I am also a former volunteer cat foster for Portland-based rescues, where I fostered more than 50 cats and kittens over five years. My work has appeared in print in Real Simple, Inside Your Dog’s Mind, Inside Your Cat's Mind, and Paw Print, as well as online at Rover, PetMD, Daily Paws, Fetch by The Dodo, Forbes Vetted, NBC Select, and more. I also write about beauty, fashion, pregnancy, and parenting for several publications.Prior to this, I spent a decade as a biologist in both the private sector and federal government, culminating in a senior project manager role with the Army Corps of Engineers. Why you can trust meI care deeply about the products I recommend and hold myself to a simple standard: I won’t recommend anything I wouldn’t use for my own cats or kid. Whether it’s a water fountain for cats or a towel warmer in my daughter’s bathroom, every recommendation undergoes rigorous, science-based testing and research informed by expert insights from veterinarians, animal behaviorists, regulatory agencies, safety experts, and beyond. I ask the questions readers might not yet know to ask, then translate the answers into practical, accessible guidance. My educationI hold a bachelor’s degree in biology from the University of Akron, located in Akron, Ohio. Outside of workI live in Portland, Oregon, with my husband, daughter, two cats, and four hens. You can often find me chasing our very active toddler — ideally along the Pacific Northwest coastline, through a local forest, or while exploring a new city. When we’re home, we’re likely in the kitchen or out in our backyard with our chickens and harness-trained cats.Say hi (or send cute cat pics!) to jleeson0515@gmail.com. You can also follow me on LinkedIn