6 Best Litter Boxes for Large Cats: Roomy Picks for Maine Coons and Big Cats
Reader-supported: if you buy through links on this page, we may earn a small commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Read our affiliate disclosure.
If you share your home with a Maine Coon, a Ragdoll or just a big, heavy cat, you already know that most litter boxes are way too small. A cramped box leads to paws hanging over the edge, pee going over the side, litter kicked across the floor and, eventually, a cat that decides to go somewhere else. The right litter box for large cats fixes all of that.
Most standard litter boxes are designed for average-sized cats. Big cats need more length, higher sides and a sturdy build. The general rule is that a litter box should be about 1.5 times the length of your cat (nose to base of tail), which for a big cat means a box well over 24 inches long.
We compared the most popular large and extra-large litter boxes on Amazon on size, wall height, entry height, sturdiness, ease of cleaning and owner feedback.
How we choose: Our picks are based on manufacturer specifications, Amazon best-seller data and large numbers of verified owner reviews. We don’t accept payment from brands for placement.
IRIS USA XX-Large High Sided Cat Litter Box
A huge 30 x 20 inch pan with 14-inch high sides and a scatter shield. Room to turn, dig and pee without leaks, at a low price.
Short on time? This is the one we'd buy. Keep reading for alternatives.
📋 In This Guide
- Quick Picks
- Comparison Table
- 1. IRIS USA XX-Large High Sided Cat Litter Box: Best Overall
- 2. IRIS USA Large High Sided Cat Litter Box: Best Value
- 3. Amazon Basics Hooded Enclosed Cat Litter Box (Large): Best Covered Box
- 4. Arm & Hammer Large Sifting Litter Box with Microban: Best for Odor Control
- 5. EGMEHOAD XXL Stainless Steel Litter Box: Best Stainless Steel
- 6. Petmate Booda Dome: Enclosed jumbo litter box for big cats
- Signs Your Cat's Litter Box Is Too Small
- How to Choose a Litter Box for Large Cats
- Frequently Asked Questions
- The Bottom Line
Quick Picks
- Best Overall: IRIS USA XX-Large High Sided Cat Litter Box
- Best Value: IRIS USA Large High Sided Cat Litter Box
- Best Covered Box: Amazon Basics Hooded Enclosed Cat Litter Box (Large)
- Best for Odor Control: Arm & Hammer Large Sifting Litter Box with Microban
- Best Stainless Steel: EGMEHOAD XXL Stainless Steel Litter Box
- Honorable Mention: Petmate Booda Dome
Comparison Table
| Litter box | Size | Style | Best for | Price |
|---|---|---|---|---|
| IRIS USA XX-Large | About 30″ x 20″ x 14″ | Open, high sides | Maine Coons, 2+ cats | Check Price |
| IRIS USA Large High Sided | Large | Open, high sides | Big cats, budget | Check Price |
| Amazon Basics Hooded | About 24″ x 18″ x 17″ | Covered, swing door | Privacy, odor | Check Price |
| Arm & Hammer Sifting | Large | Open, sifting trays | Odor, easy cleaning | Check Price |
| EGMEHOAD XXL Steel | XXL, 8″ deep | Open, stainless steel | No odor, lasts for years | Check Price |
| Petmate Booda Dome | Dome-shaped covered plastic | Enclosed jumbo litter box for big cats | $ | Check Price |
1. IRIS USA XX-Large High Sided Cat Litter Box: Best Overall
IRIS USA XX-Large High Sided Cat Litter Box
Best for: Maine Coons, Ragdolls, very heavy cats and multi-cat homes
The IRIS XX-Large is simply huge: about 30 inches long, 20 inches wide and 14 inches tall. That’s enough room for even the biggest cats to turn around, dig and position themselves comfortably. The high sides and scatter shield keep kicked litter and high peeing inside, and there’s still a lower front section for stepping in.
It’s affordable, made from sturdy plastic, and has thousands of strong owner ratings.
👍 What we like
- Very long and wide, great for giant cats
- High sides plus a scatter shield stop leaks and kicking
- Lower front entry for easy access
- Low price for the size
👎 What to consider
- Takes up a lot of floor space
- Needs plenty of litter to fill
2. IRIS USA Large High Sided Cat Litter Box: Best Value
IRIS USA Large High Sided Cat Litter Box
Best for: Big cats in homes with less space
If the XX-Large is too big for your space, the regular IRIS High Sided Large is a proven favorite, with over 30,000 ratings. It has the same kick-proof high sides and scatter shield, an extra-deep pan and a raised edge that helps keep your floor clean.
👍 What we like
- High sides for high peeing and kicking
- Extra-deep pan
- Huge, proven owner base
- Very affordable
👎 What to consider
- Smaller than the XX-Large, so not ideal for the very largest cats
3. Amazon Basics Hooded Enclosed Cat Litter Box (Large): Best Covered Box
Amazon Basics Hooded Enclosed Cat Litter Box (Large)
Best for: Big cats that like privacy, and homes that want to hide the mess
This hooded box is about 24 x 18 x 17 inches, with a tall hood so big cats can stand up inside. The swinging door gives privacy and helps contain odor and litter. It has over 18,000 ratings and a high average score.
👍 What we like
- Tall hood fits bigger cats
- Swinging door for privacy and odor control
- Contains kicked litter
- Well rated and affordable
👎 What to consider
- Some cats dislike doors (you can remove it)
- Covered boxes need daily scooping to keep odor down inside
4. Arm & Hammer Large Sifting Litter Box with Microban: Best for Odor Control
Arm & Hammer Large Sifting Litter Box with Microban
Best for: Owners who want easier cleaning and less smell
This large box uses a clever sifting system: lift the top tray and clean litter falls through, leaving clumps behind. Its plastic is treated with Microban antimicrobial protection to fight odor-causing bacteria. With over 50,000 ratings, it’s one of the most popular litter boxes on Amazon.
👍 What we like
- Sifting trays make cleaning fast
- Antimicrobial plastic helps with odor
- Large size
- Made in the USA
👎 What to consider
- Sides are lower than the IRIS high-sided boxes
- Works best with clumping litter
5. EGMEHOAD XXL Stainless Steel Litter Box: Best Stainless Steel
EGMEHOAD XXL Stainless Steel Litter Box
Best for: Big cats, and owners tired of smelly, scratched plastic
Plastic boxes scratch over time and trap odor. This XXL stainless steel box never absorbs smell, and its 8-inch-deep pan gives big cats plenty of room to dig. The non-stick surface makes scooping easy. Read why steel boxes are so popular in our stainless steel litter box guide.
👍 What we like
- Stainless steel never absorbs odor
- XXL size and 8-inch depth
- Non-stick and easy to clean
- Lasts for years
👎 What to consider
- Costs more than plastic
- Heavier to move when cleaning
6. Petmate Booda Dome: Enclosed jumbo litter box for big cats
Petmate Booda Dome
Best for: Enclosed jumbo litter box for big cats
The Petmate Booda Dome is a roomy covered box with a step entry that knocks litter off paws on the way out and a carbon filter in the top for odor control. Its round interior gives large cats room to turn around, and the entry is big enough for Maine Coons and other XL breeds.
👍 What we like
- Large interior for big cats
- Step catches litter on exit
- Carbon filter for odor
- Affordable for the size
👎 What to consider
- Plastic (will eventually hold odor)
- Dome shape is bulky
- Shorter cats may need to step up
Signs Your Cat’s Litter Box Is Too Small
- Paws, tail or bottom hang over the edge
- Pee goes over the side or leaks at the corners
- Litter is kicked everywhere
- Your cat perches on the rim instead of standing inside
- Your cat goes outside the box, especially right next to it
If you see any of these, a bigger box is often the easiest fix.
How to Choose a Litter Box for Large Cats
- Length: About 1.5 times your cat’s body length. For big cats, aim for 24 inches or more, and ideally close to 30.
- Wall height: High sides (about 12 inches or more) stop high peeing and kicking.
- Entry height: Choose a lower entry for senior, overweight or arthritic big cats.
- Open or covered: Most cats prefer open boxes. If you choose a hood, make sure it’s tall enough for your cat to stand up.
- Top-entry boxes: They can work for big, agile cats, but only in XX-Large sizes. See our top-entry litter box guide.
DIY tip: Many owners of giant cats use a large plastic storage bin with an entry hole cut into one side. It’s cheap and very roomy.
Frequently Asked Questions
What size litter box does a Maine Coon need?
A Maine Coon usually needs an extra-large box, ideally around 30 inches long with high sides. The IRIS XX-Large is a popular choice.
Are covered litter boxes good for large cats?
They can be, if the hood is tall enough for your cat to stand and turn. Many big cats feel cramped in covered boxes, so an open, high-sided box is often better.
How many litter boxes do I need for large cats?
The same rule applies to cats of every size: one box per cat, plus one extra. Read our full guide on how many litter boxes per cat.
Why does my big cat pee over the side of the litter box?
Usually because the box is too small or the sides are too low. A larger, high-sided box like the IRIS XX-Large often solves it.
Do self-cleaning litter boxes work for large cats?
Some do, but many have small entries or weight limits. Check the size and weight rating carefully. See our self-cleaning litter box guide for options.
The Bottom Line
- For most big cats, choose the IRIS USA XX-Large. It’s huge, high-sided and affordable.
- For less space, choose the IRIS Large High Sided.
- For zero odor, choose the EGMEHOAD XXL stainless steel box.
Give your big cat the space they need, and you’ll likely see fewer accidents and much less mess. Add a good cat litter mat to catch anything that gets out.
Related: 5 Best Stainless Steel Litter Boxes
Related: How to Get Rid of Litter Box Smell in a Small Apartment
Related: Best Odor Control Cat Litter for Apartments
Related: 6 Best Enzyme Cleaners for Cat Pee (Carpet, Couch and Floors)
Product details are based on manufacturer information and published reviews at the time of writing and may change. Always check the current product listing, including dimensions, before buying.
Written by Jason
IndoorCatGear helps cat owners choose products with confidence. We compare specifications, study independent testing and read through large numbers of verified owner reviews, so you don't have to. Brands can't pay for placement in our guides.
