How To Choose A Self-Cleaning Litter Box For Large Cats

Trying To Find An Automatic Litter Box For Your Large Cat?

If you have a large cat, choosing a roomy automatic litter box is a challenge. It’s not only about your cat being comfortable when doing its business it’s also about preventing litter box accidents.

When the area where your cat aims is reduced, the urine or feces most likely will go outside or on top of the box’s rim. It’s not the cat’s fault. Most manufacturers design self-cleaning litter boxes thinking only on small to average cats, and leaving out the big guys. But here you will learn how to choose an auto litter box for your large furry friend.

Let’s First Determinate What Is Considered A Large Cat

Large cat

First, I want to mention that there are many types of cats, some of them are weeny little things with delicate bones and others are massive hulking bruisers. Here I will mention what it’s considered an average domestic large cat, leaving out the extremely large and tall cats, for example, an extra large Maine Coon or a Savannah. These cats can weigh up to 25 lbs or more.

As a general rule, a cat is considered large when it weighs between 15 and 20 lbs. More than that would be considered an Extra Large cat.

There are exceptions to this rule, for example, cats that weigh less than 15 lbs, but they are tall. When cats are tall and slim they have more capacity to adapt to spaces due to its skinnier bodies, still, they are considered large cats and they need a comfortable roomy area where to do their business.

Not All Self-Cleaning Litter Boxes Are Suitable For Large Cats

Automatic litter boxes are in general well designed and a good help to keep up with the litter box scooping and most of them will feature either a rake or conveyor to do their job which is collecting the cat’s waste. So far it sounds good, but the problem is that these built-in elements will be right next to the litter bed where the cat does its business, taking space from the litter area, reducing it and making it less suitable for a large cat.

Also, the typical rectangular shape of these units limits the cat’s movements when inside. Even if the self-cleaning litter box features a circular shape, such as the CatGenie, the litter area is still rather small for a large cat and the rims are not tall enough to stop litter, urine or feces from going onto the floor.

Large Cats vs Regular Automatic Litter Boxes

You will encounter some inconveniences if buying any auto litter box for your large cat. The most common are:

1. Your cat will not like the reduced space so he or she will do its business outside (we don’t want that)
2. Your cat’s butt will hang out of the litter box and the feces or urine will go onto the mat or floor (it’s not your cat’s fault, he doesn’t have eyes there 🙂 )
3. The scooping rake will get dirty with some feces or urine on it (a lot of fun cleaning a poopy rake)

Most Suitable Automatic Litter Box for Big Cats

To get your large cat the best auto litter box you must check the following points:

  • The access wide enough for your cat to enter smoothly
  • The litter bed area must be wide and deep enough for your cat not to feel trapped or without the ability to turn around
  • The litter box walls must completely cover your cat butt
  • The built-in internal parts (scooping rake, conveyor, etc) must not take room from the litter bed

There is one automatic litter box that doesn’t feature a scooping arm or rake sitting next to the litter bed because its mechanism consists of filtering and sifting the clumps through a rotating Globe and a built-in screen that is part of the litter box. This auto litter box is called the Litter Robot III Open Air.

Even though the Litter Robot’s Globe features the built-in screen and the internal shield (a protective piece that stops clumps from sliding onto the “roof” of the Globe) these elements don’t take much space as they follow the spherical line of the inside. The litter chamber inside the Globe, due to its shape, offers much more room for the cat to move and turn around. Plus any waste will go always to the litter no matter what and not outside the litter box.

The widest point inside the Globe’s chamber is 20″ across and the depth is 20″ front to back. These dimensions allow your large cat to accommodate inside the unit to do its business without the risk of urinating or pooping outside.


Dimensions large litter box

Consequently, the design of the Litter Robot allows large cats to do their business without the typical “accidents” present in other auto litter boxes. Due to the Globe’s shape the cat’s urine and feces will go to the litter bed, no matter where your cat does its business, the urine will drop down to the litter in case your cat urinates above the liner (rubber) area and will form a clump that will be dumped into the waste drawer.

Also, the Globe has been ergonomically designed to accommodate larger cats comfortably with no corners that block the cat’s movements. The Litter Robot’s oval-shaped entryway allows the large cat’s body to go through nicely.

Additionally, the entryway’s oval shape gives cats confidence to get in, without that feeling of being trapped or feeling claustrophobic, but at the same time, having privacy to do their business.

And now this unit is not only suitable for large cats but also for busy owners. Yes! now the Litter Robot Open Air comes with a Wi-Fi version that allows you to check the operation of the litter box from your smartphone and see if it’s all good. This is great news if you need to make sure your cat is doing its business regularly.

If you are struggling in trying to find a suitable auto litter box for your large cat, you may want to check in-depth reviews so you can decide on good information.


Lorena Avila is a Marketing Engineer, Writer, cat figures collector, cat lover and cat owner as well but above all a very passionate investigator of felines. She started investigating cat products 5 years ago when she couldn’t find reliable reviews on the internet to buy an automatic feeder for her own cat and since then she has been helping others providing honest information online.

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