Best Side Opening Litter Boxes for Cleaner Floors and Easier Entry
The best side opening litter box depends on whether you prioritize an easy-to-use entrance, splash control, or a roomy stainless steel interior. The ZOZOO model is best for cats that need an entrance on the long side, while the Ellenpent offers an extra-large side-entry design with 6-inch walls. AIPERRO is an enclosed alternative for limiting scatter, and Vivifying and KISENG offer different open-top or front-entry designs for buyers comparing styles.
| Product | Best for | Entry style described |
|---|---|---|
| ZOZOO Stainless Steel Litter Box | Side access and a litter-catching platform | Long-side entrance |
| Ellenpent XL Stainless Steel Litter Box | Roomy side entry and splash control | Side opening |
| AIPERRO Stainless Steel Litter Box | Enclosed use and reducing scatter | Enclosed design |
| Vivifying XL Stainless Steel Litter Box | Open-top access | Open top |
| KISENG Stainless Steel Litter Box | Front entry and top exit | Front entry, top exit |
ZOZOO Stainless Steel Litter Box
Best for: Cats that need a side entrance and households looking for a feature to help catch litter as the cat exits. This XL box measures 23.7 by 15.8 by 13.8 inches, and its entrance is on the long side. The maker describes a slotted platform inside the box that helps shake litter from paws.
The stainless steel pan is 0.8 mm thick, with a snap-on plastic fence and overlapping connection intended to contain urine. Its non-stick, rust-resistant surface is described as easy to wipe clean and less likely to retain odors than plastic.
Limitation: The tall enclosure and side entrance may not suit cats that prefer an open-top pan or have difficulty stepping into enclosed boxes.
Ellenpent XL Side-Opening Litter Box
Best for: Buyers who want an extra-large, high-sided box with a side opening. The dimensions are 23.6 by 15.9 by 12 inches, and the product description specifies 6-inch walls. Its stainless steel base is paired with a PP lid, with an overlapping top and bottom designed to help contain urine.
The side opening is intended to make entry and exit convenient, while the high walls are meant to reduce kicked-out litter. Choose this model if you want a side-entry enclosure with a roomy footprint and a metal pan described as non-stick and rust-resistant.
Limitation: The listed wall height is 6 inches; cats that spray high may need a different setup or additional protection around the box.
AIPERRO XL Enclosed Stainless Steel Litter Box
Best for: People who prefer an enclosed litter box and want features aimed at reducing litter scatter. It measures 23 by 15 by 11 inches and has a top cover. The manufacturer describes a 30-degree angled litter filter plate intended to help keep litter inside as cats exit.
The stainless steel construction is described as rust-resistant and easy to clean. The product listing also includes a litter mat and metal scoop. Its high sides are intended to help limit spills, and the XL dimensions are presented for cats of different sizes, including large breeds.
Limitation: This is an enclosed design, not a clearly specified long-side-entry model. Check the entrance layout and your cat’s comfort with covered boxes before choosing it.
Vivifying XL Open-Top Stainless Steel Litter Box
Best for: Cats that prefer an open-top pan rather than a covered side-entry enclosure. The box measures 23 by 14.5 by 10 inches, and the listing recommends it for cats under 18 pounds. Its stainless steel and ABS construction has high sides with reinforced edges intended to help prevent leaks.
The smooth metal surface is described as easy to rinse or wipe, and the listing says it resists rust and scratches while minimizing odor. Consider it as an alternative if easy access matters more than having a dedicated side opening.
Limitation: The product is open-top and is not described as having a side entrance. The stated size guidance is for cats under 18 pounds.
KISENG Stainless Steel Front-Entry Litter Box
Best for: Buyers comparing an enclosed front-entry and top-exit arrangement rather than a side opening. It measures 22.83 by 14.96 by 14.96 inches and is described as suitable for kittens, adult cats, and large cats. The deep pan is intended to hold more litter between refills.
The smooth stainless steel surface is described as non-sticky and odor-resistant, with less tendency to retain stains or smells than plastic. The listing says a mat and scoop are included.
Limitation: Its specified entrance is at the front, with top exit; it is not the closest match for buyers specifically seeking a side-opening entrance.
Buying Guide: How To Choose A Side Opening Litter Box
Does the entrance need to be on the long side?
Check the product’s entry description and dimensions before buying. The ZOZOO listing explicitly places the entrance on the long side, while Ellenpent describes a side opening. This matters if you plan to position the box against a wall or fit it into a particular space. Measure the available area and leave room for the cat to approach and turn around.
Should you choose an open or enclosed design?
An open-top box gives the cat an unobstructed entry, but it may not contain scatter as effectively as a high-sided or covered model. Enclosed boxes add walls or a lid intended to contain litter and urine, but some cats may prefer open access. Consider your cat’s habits instead of choosing based on enclosure alone.
Which materials and features matter?
Stainless steel is described across these listings as easy to clean and resistant to rust, scratches, or odor retention. Compare the pan dimensions, wall height, lid attachment, and cleaning method. Accessories such as a mat or scoop are listed with some models, but they do not replace checking whether the box itself fits your cat and home.
Frequently Asked Questions
What is a side opening litter box?
It is a litter box with an entrance positioned on a side rather than only at the front or through the top. Confirm the entrance location in the product details because designs vary.
Which listed model clearly specifies a long-side entrance?
The ZOZOO product description says its entrance is on the long side and also describes a slotted exit platform.
Are stainless steel litter boxes easy to clean?
The listed stainless steel models describe smooth or non-stick surfaces that can be wiped or rinsed. Follow the care instructions supplied with the specific product.
Is an enclosed litter box better for every cat?
No. Enclosed designs may help contain scatter, but a cat may prefer an open-top box. Consider the cat’s entry habits and comfort.
How do I choose the right size?
Compare the listed length, width, and height with your cat’s size and the space available. Also check any stated weight guidance, such as Vivifying’s recommendation for cats under 18 pounds.