10 Best Large Cat Litter Boxes 2025 in the United States

The PetSafe ScoopFree Crystal Pro is a large, open-style cat litter box made from plastic, designed to simplify cleaning with its automatic self-cleaning feature. It uses disposable crystal litter trays that absorb urine and dehydrate waste, which helps control odors better than traditional clumping litter. Its low-tracking, dust-free crystals reduce mess outside the box, making it a good choice for keeping your home clean. The box measures about 28 by 19 inches, providing ample space for most cats up to 15 pounds, and the entry is open, which some cats prefer for easy access.

One of its standout features is the health monitor with motion sensors that track your cat’s litter box habits, potentially helping spot health issues early. The disposable trays with leak-proof liners protect floors from spills, adding to its convenience. However, the box is designed exclusively for use with PetSafe’s crystal litter, which could be a drawback if you prefer other litter types or find the crystals costly. Also, the open design lacks a hood, so it may not contain odors or litter dust as completely as hooded models.

Cleaning is simplified since the box rakes waste automatically and requires only tray changes every few weeks, cutting down on daily scooping. The upfront cost and ongoing need to purchase special trays might not fit every budget. This litter box suits cat owners seeking a low-maintenance, odor-controlling solution who don’t mind using a specific litter type. It may be less suitable for those wanting a fully enclosed design or more flexible litter options.

The AutoScooper 11 is a spacious, open-top self-cleaning litter box designed for multiple cats, measuring about 21.5" x 20.3" x 24"—a good size to comfortably accommodate larger cats or several cats at once. Made from durable polypropylene, it’s lightweight yet sturdy. Its open-top design lets cats move freely without feeling confined, which is ideal if your cat dislikes enclosed spaces.

The litter box uses an automatic cleaning system with infrared and Hall sensors to ensure safety by pausing when your cat is inside, reducing worries about injury. It operates quietly at 32 dB, so it won’t disturb your home environment. The unit helps reduce waste and frequency of litter changes, making it cost-effective over time. Cleaning is straightforward thanks to its removable parts and one-touch litter disposal, though the main body shouldn’t be washed with water—just wiped clean.

Because it is open-topped, some litter scatter could occur compared to hooded boxes, which might be a consideration for tidiness. Its size and open style mean it needs a suitable spot in your home and might not fully contain litter mess. This model is well-suited for cat owners seeking an automatic, large, and accessible litter box that emphasizes ease of maintenance and cat comfort.

This PetCove self-cleaning litter box is a smart choice for households with multiple cats, especially those up to 20 pounds. It’s a large, covered box made of durable plastic, measuring about 20 inches in each direction and standing nearly 19 inches tall, which provides plenty of space and helps contain litter scatter and odors. The hooded design, combined with an ozone filtration system, works to keep your home smelling fresh. One standout feature is its safety sensors, which stop the cleaning cycle as soon as your cat steps inside, offering peace of mind that your pet won’t be hurt.

It can hold up to 75 liters of litter and manage waste for up to 15 days, reducing frequent scooping chores. You also get smart app control that lets you monitor and schedule cleaning remotely, which is convenient if you’re often away. However, at over 16 pounds, it’s not very portable, and while the automatic cleaning is great, some users might find setup or maintenance a bit challenging compared to simpler boxes. Also, it only works with clumping litter, which is common but worth noting.

This litter box is ideal for busy cat owners who want a hands-off, odor-controlled solution that can handle several cats comfortably.