By Sami, Founder and Editor of Wise Maine Coon
This article is for general education and is not a substitute for veterinary advice. If your cat suddenly stops using the litter box, strains to urinate, makes repeated trips to the box, cries while trying to urinate, or has blood in the urine, contact a veterinarian promptly.
Buying a litter box for an average cat is often a matter of choosing a shape and finding somewhere to put it. With a Maine Coon, size has to come first. A box can look enormous in a store and still feel cramped once a long-bodied adult steps inside.
So how large is large enough and does a covered or automatic box actually make life easier?
Quick answer: Measure your Maine Coon from the nose to the base of the tail, then look for a litter box with a usable interior length about 1.5 times that measurement. For most healthy adults, I would start with an open box that has a roomy floor, high back and side walls, and an entrance the cat can cross comfortably.
The word usable matters here. Brands measure products around the outside rim, where the box is widest. Your cat stands on the smaller floor inside. Rounded corners, sloping walls, storage sections, steps, and waste drawers can take away more room than the product name suggests.
That is why this is not a ranked “top 10” list. The right Maine Coon litter box is the one that fits your cat, your home, and the way your cat uses the bathroom. The products below are examples chosen from published dimensions; Wise Maine Coon has not hands-on tested them.
What Size Litter Box Does a Maine Coon Need?
The Feline Veterinary Medical Association’s house-soiling guidance gives a useful starting rule: a litter box should be about 1.5 times the cat’s length from the nose to the base of the tail. The guidance also notes that many commercial boxes are too small.
Measure the Cat, Not the Tail
Wait until your Maine Coon is standing in a relaxed position. Measure from the tip of the nose to the spot where the tail joins the body. Do not run the tape to the tail tip. Multiply the body measurement by 1.5.
If the body length is 18 inches, the target box length is about 27 inches:
18 inches × 1.5 = 27 inches
Use that number as a target for the flat interior floor. Your cat should be able to walk in, turn around, dig, squat, and leave without folding its body around the sides. A few extra inches are useful, especially for a young cat that is still growing.
Maine Coons mature slowly, so a box that suits a kitten may become frustrating long before the cat looks fully grown. Our Maine Coon size and growth guide can help you plan for that change, but measuring your own cat is still more reliable than choosing from an average breed chart.
Why “XL” Is Not a Measurement
One brand’s XL can be shorter than another brand’s standard large box. No shared sizing system forces every manufacturer to use those labels in the same way.
Check the numbers instead. If only outside dimensions are listed, look closely at the shape. A wide rim and sharply sloped sides usually mean less standing room at the bottom. When the calculated target is already close to the advertised length, choose a larger option or ask the manufacturer for interior measurements before buying.
Which Litter Box Style Works Best?
If your Maine Coon is healthy, mobile, and willing to use an open tray, keep the design simple. Extra features are useful only when they solve a real problem. A hood does not fix a small floor, and an automatic rake does not give a long cat more turning room.
| Style | When it makes sense | What can go wrong |
|---|---|---|
| Open with high sides | A strong first choice for most healthy adults | A high entrance may be hard for a stiff cat |
| Jumbo low-entry | Kittens, senior cats, and cats with limited movement | Litter can escape through the low opening |
| Covered | A cat that already prefers a genuinely roomy hooded box | Less headroom, less visibility, and trapped odor |
| Automatic | A cat that fits, accepts the noise, and has a backup box | Large machine outside, small chamber inside |
| Oversized utility tray | A very long cat when pet-store boxes fall short | Not every container is stable or safe to modify |
Open and High-Sided: The Sensible Starting Point
An open top gives a Maine Coon room above the shoulders and lets the cat see what is happening around the box. High walls at the back and sides help with vigorous digging and cats that urinate while standing more upright. The front can still be lower than the other walls.
That lower entry is not only for elderly cats. It makes the box easier to approach without sacrificing protection where most mess occurs. If litter escapes through the front, add a broad litter mat rather than making every wall difficult to climb.
Low-Entry Boxes for Stiff or Older Cats
A Maine Coon that pauses before stepping in, pulls itself over the edge, or stops visiting a box on another floor may be struggling rather than becoming “fussy.” Give that cat a low-entry option close to the area where it spends time and discuss the change with a veterinarian.
Access often needs to change during the senior years. Our Maine Coon lifespan guide covers the wider care adjustments that can become useful as a cat ages.
Covered and Top-Entry Boxes Need More Caution
A covered box can make the room look tidier, but the cat experiences it from the inside. Check whether the Maine Coon can stand without touching the roof, turn without brushing every wall, and leave without backing out awkwardly. A hood can also hold odor close to the litter even when the room smells clean to you.
Top-entry boxes ask even more of the cat. It has to climb in, turn in a confined space, and jump out. An agile adult may accept that routine. I would not make it the default for a kitten, a senior, or a cat with any sign of pain or poor balance.
Automatic Does Not Automatically Mean Spacious
The overall footprint of an automatic litter box tells you how much room the machine occupies, not how much room the cat receives. Check the opening, step height, chamber width and depth, and space needed to turn. Also check the manufacturer’s weight and safety instructions.
Keep the old box while introducing the machine. Let the cat inspect the new one before running a cleaning cycle nearby. If the sound or movement worries the cat, slow the transition down. The purpose is to make toileting easier, not to win a contest of patience.
Four Large Litter Boxes Worth Measuring
These examples cover four different needs: maximum open length, low entry, a simpler conventional pan, and automatic cleaning. The figures below are published product dimensions. They do not replace a check of the usable floor.
| Product example | Published size | Reason to consider it | Check before buying |
|---|---|---|---|
| IRIS USA XL Open-Top with Shield | 30.2 × 20 × 13.1 inches | The longest open option in this comparison, with high side and back walls | Flat floor length and the front entry height |
| KittyGoHere Jumbo Pan | 28 × 22 × 9 inches | A broad open pan with a low entry | Whether your cat kicks litter through the opening |
| Petmate Giant Litter Box | 25.56 × 18.3 × 10.02 inches | A straightforward open design | Whether the interior meets your calculated target |
| Litter-Robot 4 | Interior about 19 × 18 inches; entry 15.75 × 15.75 inches | Automatic cleaning and waste monitoring | Whether your Maine Coon can turn naturally inside |
The measurements lead to a useful conclusion. An 18-inch cat has a target box length of about 27 inches. On paper, that puts two examples above the target, one below it, and the automatic chamber well below it. Real fit still depends on the interior shape, but the calculation quickly removes products that are unlikely to work.
If no normal litter box is long enough, a stable storage container or concrete-mixing tray can provide more floor space for less money. Do not cut an entrance unless the container can be held securely and every new edge can be made completely smooth. A manufactured low-entry pan is safer than a rough homemade opening.
How Many Boxes Does a Maine Coon Need?
Start with one box for each cat, plus one extra. That means two boxes for one Maine Coon and three for a two-cat home. Spread them around the home instead of placing them in a row. From a cat’s point of view, three trays beside one another may still feel like a single toileting area.
The extra box is useful when one has just been used, one is temporarily difficult to reach, or another pet controls the route. In a multi-story home, keep a box on the floors the cat uses. An older cat should not have to climb a staircase for every bathroom visit.
Where Should the Boxes Go?
Choose a quiet place that the cat can reach without being cornered. Laundry rooms can work, but not when the box sits beside a machine that starts with a sudden bang. A narrow closet or the end of a hallway may also create trouble if another animal can block the only exit.
Keep the litter area away from food and water. If you are planning both spaces at the same time, our Maine Coon food guide and daily, weekly, and yearly care guide will help you keep feeding, cleaning, and toileting routines separate.
Privacy is helpful; isolation is not. The cat should be able to see the approach and leave without squeezing past another pet. If toileting changes after a move, a new pet, visitors, or conflict between cats, look at the household situation as well as the box. Our Maine Coon personality and temperament guide provides more context for behavior and adjustment.
Litter Choice and Cleaning
Many cats prefer a soft, unscented clumping litter. Strong perfume, heavy dust, deodorizing powder, or a plastic liner can put some cats off. If you want to change litter, offer the new one in a second box first. Let the cat show a preference instead of removing the familiar option overnight.
Scoop at least once a day and add clean litter when needed. Feline veterinary guidance advises washing the box every one to four weeks with soap and hot water. Avoid ammonia-based products and strong chemicals. They can leave an unpleasant smell, and ammonia can smell similar to urine.
Check the fur around the rear legs and tail if damp litter or stool keeps sticking to the coat. The answer may involve both a larger box and better coat maintenance. Use the safe methods in our Maine Coon grooming guide; do not cut close mats with scissors next to the skin.
What Common Problems Are Telling You
| What you notice | What may be wrong | First response |
|---|---|---|
| Waste lands on or beyond the edge | The floor is too short or narrow | Measure the cat and the inside floor again |
| Urine reaches the wall | The back or sides are too low | Try a high-back pan with an easy entrance |
| Litter spreads across the room | Strong digging, low walls, or no landing area | Use higher sides and a wide mat |
| The cat pauses before stepping in | The entry may be painful or too high | Offer a low entry and speak with a veterinarian |
| A clean box is suddenly ignored | Pain, urinary disease, litter dislike, noise, location, or conflict | Keep an open alternative and arrange a veterinary check |
A cat does not urinate or defecate outside the box out of revenge. A sudden change can point to pain, urinary disease, arthritis, kidney disease, diabetes, stress, or another medical or environmental problem.
Straining while producing little or no urine is especially serious. Cornell’s Feline Health Center describes urethral obstruction as a true medical emergency and notes that male cats are at greater risk. Do not wait for a litter-box change to solve those symptoms.
A Short Buying Checklist
- Measure from the nose to the base of the tail.
- Multiply that body length by 1.5.
- Compare the result with the flat interior floor.
- Leave enough width for a natural turn.
- Use high side and back walls if litter or urine escapes.
- Keep the entrance low enough for easy access.
- Push gently on the edge to check that the box will not tip.
- Provide one box per cat plus one extra.
- Keep the boxes in separate, quiet locations.
- Scoop daily and take sudden behavior changes seriously.
Frequently Asked Questions
What is the best litter box for a Maine Coon?
For a healthy adult, I would begin with a long, open box that has a roomy floor, high walls at the back and sides, and a lower entrance. Measure before choosing a product. A simple box that gives the cat room to turn is a better buy than a feature-heavy model with a cramped interior.
What size litter box should I buy?
Measure the cat from the nose to the base of the tail and multiply the result by 1.5. An 18-inch body measurement gives a target length of about 27 inches. Compare that number with the inside floor, not just the widest measurement around the outside rim.
Are covered litter boxes suitable for Maine Coons?
They can be, but only when the cat has enough floor space and headroom and chooses to use the box comfortably. The hood reduces visibility and may hold odor. Offer an uncovered option if the cat hesitates at the door, rushes out, or begins eliminating elsewhere.
Can a Maine Coon use a Litter-Robot?
Some can. Litter-Robot lists the Litter-Robot 4 interior at about 19 inches wide by 18 inches deep. Compare that space with your cat’s body length and turning posture rather than relying on breed or weight alone. Introduce it slowly and keep a conventional box available.
How many litter boxes does one Maine Coon need?
Two is the usual starting point: one box per cat, plus one extra. Put them in different accessible areas instead of side by side. The second box gives the cat another choice when one is dirty, noisy, difficult to reach, or guarded by another pet.
Is stainless steel better than plastic?
Not if the steel box is too small. Material comes after fit, entry height, stability, and ease of cleaning. Stainless steel and plastic wear differently, but neither material can compensate for a floor that does not let the cat stand and turn comfortably.
When should the box be replaced?
Replace it when cracks, sharp damage, deep scratches, warping, instability, or a smell that remains after cleaning makes the box unpleasant or unsafe. Check it during each full wash and follow the care instructions supplied for its material.
What I Would Choose First
For a typical adult Maine Coon, my first choice would be the largest practical open box with high back and side walls and a comfortable front entry. I would measure the interior before paying extra for a hood, filter, drawer, or automatic cycle.
Then I would watch the cat. Can it walk in without pausing? Turn without folding around the walls? Dig without stepping out? Leave without scrambling? Those ordinary movements tell you more about fit than an XL label ever will.
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