Our readers keep the lights on and my morning glass full of iced black tea. As an Amazon Associate, I earn from qualifying purchases.7 Best Litter Box For Big Cats | 28 Inches of Steel Relief

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The L8 Max is the largest enclosed litter box we evaluated, measuring a full 28 inches long, 20.5 inches wide, and 17.4 inches tall. That 120-liter interior gives a Maine Coon or Ragdoll enough clearance to stand fully without touching the lid, and you can dump in 30 pounds of litter for weeks of unattended use. The three-layer detachable shell flips open from the top, letting you scoop without removing the entire hood — a major convenience for daily maintenance.

PalNests includes a proprietary Litter Companion deodorizer plus three charcoal bags and a freshness block, creating multi-stage odor control that actually competes with expensive automatic boxes. The overlapping assembly seals the stainless steel pan to the frame, preventing urine from seeping through gaps during high-pressure spraying sessions. A dual-layer litter mat filters kicked-out granules back into the box, reducing floor mess.

The biggest caveat is the sheer size: when filled with litter, the unit becomes quite heavy and requires a dedicated corner space. Some cats initially dislike the black top cover, though most adapt within a week. The included accessories — scoop, mat, deodorizer, garbage bags, and anti-slip stickers — make this a complete out-of-box solution. If you have a 28-inch footprint and want maximum odor suppression, this is the pick.

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This open-style pan delivers the biggest footprint in our lineup at 28.5 inches long and 20.5 inches wide, but with walls that reach 14 inches tall — dramatically higher than typical open pans. The 60-liter capacity means you can pour in a deep bed of clumping litter that lasts a full week for multiple cats. The navy blue stainless steel finish resists rust and scratches, and the smooth bottom rinses completely clean with a hose spray.

Owners of extremely long-bodied cats like savannahs and Maine Coons consistently mention that their pets finally have room to stretch and turn without hitting the edges. The 14-inch walls contain even the most aggressive high-peeing sprayers, and the included multi-layer litter mat captures falling granules from paws. Attachable sidewalls snap into place without tape or clips, providing a sturdy barrier that doesn’t wobble.

The main consideration is the open-top design: there is no lid to trap odors, so this box relies entirely on frequent scooping and quality litter for smell control. The floor area also requires a substantial amount of litter — expect to use nearly an entire 40-pound bag for the initial fill. If you prefer an open pan with maximum turning radius and fortress-grade walls, this stainless steel workhorse dominates.

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The Pematar XXL splits the difference between an open pan and a fully enclosed box with a sturdy top lid that snaps onto a 12-inch-tall base. Measuring 26 by 18 inches, the footprint accommodates overweight cats up to 20 pounds, and the overlapping design between lid and pan seals urine inside. The dark gray stainless steel finish looks clean and modern, and the smooth surface prevents clumps from cementing to the bottom.

What sets this model apart is the manufacturer’s direct factory sourcing, which results in tighter quality control on the steel gauge and seam fit. Owners report zero warping after months of use, and the non-porous metal eliminates the plastic odor retention problem permanently. The included rubberized pad at the entrance helps catch stray granules, and the scoop clips neatly to the side for quick access.

The lid adds bulk without increasing interior ceiling height significantly, so very tall cats might still brush the top when standing. A few owners noted that some litter still gets kicked past the entrance during vigorous digging. For a covered box that doesn’t feel cramped, the Pematar offers a strong mid-point between full enclosure and open-air simplicity.

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The Anywish XL combines a stainless steel pan with a removable ABS plastic hood that includes a carbon filter for odor absorption. The 24 by 16-inch interior holds up to 40 liters of litter — enough for a single adult cat for roughly 30 days of uninterrupted use. The double-door design lets you access the pan from the front or top, and the modular three-part assembly can be configured as fully enclosed or semi-open depending on your cat’s preference.

Testers consistently praise the stainless steel bottom for its non-stick performance and easy rinse-and-wipe cleanup. The included litter mat and step help trap granules before they hit the floor, and the non-slip pads keep the unit stable on tile or hardwood. The swing door offers privacy without trapping odors completely, and many owners remove the door panel entirely for cats that dislike flaps.

Replacement charcoal pouches for the carbon filter are not widely available, so you’ll need to monitor filter effectiveness over time. The plastic hood components, while durable, will show scratches sooner than an all-steel enclosure. For a mid-range enclosed box that controls odor better than plastic-only alternatives, the Anywish delivers strong day-to-day performance.

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This two-pack delivers two stainless steel boxes with lids at a cost that often beats buying a single premium unit. Each box measures 24 by 16 inches with 12-inch total height, and the 6-inch top cover snaps onto the 6-inch tray using upgraded buckles that resist popping off during energetic cat exits. The dark gray and light gray color combo makes multi-cat households easy to distinguish between stations.

The stainless steel construction resists rust, scratches, and odor absorption, and owners report that a simple rinse with a hose restores the pan to like-new condition. A filter step at the entrance helps scrape litter from paws before cats leave the box, reducing tracked granules. The included scoops with stands hang conveniently on the side rail for quick daily maintenance.

Some buyers discovered they only needed one box for their cat and found the second unit redundant. The overlapping lid design prevents spray leakage but still allows some litter scatter during vigorous digging. For multi-cat homes on a budget that don’t want to compromise on stainless steel durability, this two-pack stretches your dollar without cutting material quality.

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If you need the absolute largest floor space at the lowest entry cost, the EGMEHOAD XXXL open pan measures a massive 28 by 20 inches with 6-inch walls. The 6-inch height is lower than most high-sided models, but the sheer footprint gives even a 28-pound Main Coon room to stretch fully. The stainless steel construction is corrosion-resistant and rust-proof, and the smooth surface rinses clean with a quick spray.

Owners of giant breeds or multi-cat households (up to six cats reported) find this pan invaluable for its non-porous surface that eliminates the cemented clumps and lingering odors of plastic alternatives. The low sides make it easy for senior or arthritic cats to step into without jumping, and the rectangular shape fits neatly against a wall or in a corner. No assembly is required — just unpack and pour litter.

The compromise is wall height: a dedicated high-peeing cat will still spray over 6-inch sides, and the open design provides zero odor trapping. Litter scatter is also more pronounced without a lid or high back guard. For owners with normal-peeing cats who prioritize a huge, easy-access stainless steel surface at a minimal price, this pan delivers unbeatable value per square inch.

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The TownTime extra large covered box uses a plastic body with a tall 12.99-inch overall height, making it one of the few budget-friendly enclosed options for big cats. The side-entry design forces cats to enter from a specific opening, which dramatically reduces urine spraying over the front lip — a common problem that owners of older or high-peeing cats report solving immediately. The minimalist green finish is surprisingly unobtrusive for a large plastic appliance.

No tools are required for assembly, and the one-piece base makes quick work of scooping and rinsing. Owners of senior cats praise the low entry point and spacious interior that accommodates 16-pound felines without cramped turning. The high walls and enclosed top contain litter scatter far better than open pans, and the non-slip bottom pad keeps the unit stable on hard floors.

Plastic is the limiting factor here: urine will eventually stain and etch the bottom, creating odors that intensify over months of use. The 2-gram listed weight indicates thin-wall construction, so heavy cats jumping on top may flex the lid panel over time. For budget-constrained households with normal-peeing big cats who want immediate containment, this box works well — just plan to replace it sooner than a stainless steel alternative.