Top-Entry vs Front-Entry Litter Boxes
A top-entry box is the strongest fix for grit on the floor and for a cat that aims over the side. It also shuts out kittens, big cats and anything with sore joints. Pick by who has to climb into it, then worry about the mess.
Six things people actually care about
| What you are judging | Top-entry | Front-entry |
|---|---|---|
| Grit on the floor | Best result of any box shape. The cat has to climb out through a grooved lid, and most of what is on its paws drops back in. | Whatever leaves the box lands on the floor. A mat helps; the box shape does not. |
| Peeing over the side | Solved. High walls all round and no gap to aim through. | The commonest complaint about tall cats and standing pee-ers. A high-back box helps, an open tray does not. |
| Kittens and old cats | Shuts them out. A cat that cannot hop up will find another spot in the house. | A cut-down entrance makes it usable by almost any cat. |
| Air inside the box | Enclosed. Warmer, closer, and dustier while the cat digs. | Open. Whatever the litter throws up disperses into the room instead of the hood. |
| Scooping | Lid off every time. Small annoyance, done twice a day, adds up. | Reach in and scoop. |
| What the cat thinks | Some cats refuse a lid outright and never say why. | The default. Nothing to get used to. |
Who a lid quietly locks out
ASPCA says most cats do not like liners or lids, and lists removing covers among the first things to try when a cat starts going elsewhere. That does not make lids wrong, but it does mean the lid is the first suspect when the accidents start.
Cornell Feline Health Center is blunter about older cats: even climbing into the box can be painful, which prompts them to eliminate in inappropriate areas. A top-entry box asks for a full hop. In a house with one young cat and one old one, you need both shapes.
A hood makes the litter choice matter more
Inside an enclosed box the cat digs with its face a few inches from the litter, and the walls stop the cloud dispersing. Here are the dustiest bags in our own weighing, worst first. These are the ones to avoid in a hooded or top-entry box.
| Litter | Type | Dust per pour | Dust score |
|---|---|---|---|
| Frisco by Chewy | Budget Clumping Clay | 0.58mg | 5.5 |
| Arm & Hammer Super Scoop | Budget Clumping Clay | 0.52mg | 5.7 |
| Purina Tidy Cats | Budget Clumping Clay | 0.50mg | 5.8 |
| Arm & Hammer HardBall | Fast-Clumping Clay | 0.48mg | 6 |
| Arm & Hammer Clump & Seal | Scented Clumping Clay | 0.45mg | 6 |
| Fresh Step Scented | Scented Clumping Clay | 0.42mg | 6.2 |
| World's Best Cat Litter | Corn Litter | 0.15mg | 7.8 |
| Catalyst Soft Wood | Soft Wood / Pine | 0.15mg | 8.3 |
Full method and the rest of the readings are on our methodology page.
How to try one without wasting the money
Do not replace the old box. Put the top-entry box next to it, both filled with the same litter, and leave them for two weeks. The cat votes. If the new box is unused after fourteen days, you have your answer and you still have a working box.
This is also the only honest way to test the tracking claim in your own house. Sweep the same patch of floor at the same time each evening and see whether the pile got smaller.
Twelve other ways to cut trackingDust readings are our own, taken on bags we bought. The points about lids and about older cats are sourced to the ASPCA and Cornell pages linked above. We do not test litter boxes themselves.
Questions people ask
- Are top-entry litter boxes better?
- Better at two things: keeping grit off the floor and stopping over-the-side accidents. Worse at everything to do with access. If every cat in the house is fit, agile and under about ten, a top-entry box is the best tracking fix there is. If any of them is a kitten, arthritic or very large, it is the wrong box.
- Do cats mind a lid on the litter box?
- Some do. The ASPCA says most cats do not like liners or lids on their boxes, and lists a covered box among the things to remove when a cat starts going elsewhere. It is a real risk, not a certainty, and you find out by testing rather than arguing.
- Does a top-entry box stop litter tracking completely?
- No. It cuts it a lot, because the grooved lid takes what is on the paws, but some still comes out. Pair it with a litter that stays put rather than expecting the box to do all the work.
- Can an old cat use a top-entry box?
- Usually not, and it is worth taking seriously. Cornell notes that arthritic cats may find even climbing into a box painful, and may start going elsewhere because of it. Give an older cat a low front entrance instead.