Where Does the Litter Box Go? Cat Litter Box Setup for Vans, RVs, or Cars

It’s the first question everyone asks when they find out I travel full-time with two cats, and it’s usually asked with a wince.

Where does the litter box go?

It’s one of the easiest problems to solve on the road; easier than internet, mail, or finding a place to park. It just requires you to stop thinking like a pet store and start thinking like someone with 60 square feet.

This is the setup that works, why it works, and where my version disagrees with the common zeitgeist.

The Best Shaped Litter Box for a Small Space Is a $10 Storage Tote

The single best litter box for a small space is not sold as an oddly-shaped litter box. It’s a plain Rubbermaid-style storage tote from Walmart, and it costs about ten dollars.

Buy the flat-bottomed version. Many totes have a textured, ridged bottom, and clumped urine welds itself into those grooves. A flat interior scrapes clean in seconds.
Get one that’s genuinely oversized. Feline guidelines recommend a box roughly one and a half times the length of your cat from nose to tail base, giving your kitty enough room to enter, turn around, dig, and cover. Almost every commercial litter box fails this. A large tote clears it easily.
Cut a big rectangular hole in the lid, then use the lid (see image below for example). This was my own little invention (ok I’m sure it’s been done before). High walls and the lid contain the litter that they cats kick out on exit. The large opening keeps it from becoming a sealed odor chamber and lets them get in and out easily.
Don’t fully cover it. Ohio State’s Indoor Pet Initiative notes that cats prefer large, uncovered boxes, and that enclosed boxes concentrate odor and require more thorough cleaning to avoid refusal. A lid with a wide cutout gets you the containment without making your kitty feel trapped.
Two inches of litter, no more. Deep enough to dig and bury, shallow enough that you’re not hauling forty pounds of clay down the highway.

Will litter still end up on your floor? Yes. Oh my god, yes. Mine leap out like they’re being chased. The tote reduces it; nothing eliminates it.

*Note that the lid is on with that big hole cut out of it. That helps reduce the amount of litter that explodes out of the tote when my cats jump out.*

Where to Put a Litter Box in a Van, RV, or Car

Mine lives under the bed, in the trunk area. The cats reach it through a small pass-through from the living space to the back that only they can fit through, so they come and go without me ever thinking about it. I access it from the outside, through the back doors, where scooping is a thirty-second job done standing up in fresh air.

The principle generalizes to any rig:

Put the box where the cats’ route is short and yours is easy. These are usually two different directions. Under a bed platform, in a garage or trunk space, in a bench seat base, in a cabinet with the door removed; anything that gives the cats a low-traffic path and gives you easy access from a hatch, door, or drawer.
Keep it out of the walkway. In a vehicle, you have one aisle. Anything in it gets kicked, and a box you step around ten times a day is a box you’ll resent. Plus, the litter will track to your main walking area and get stuck to your feet, which is a terrible feeling.
Avoid dead ends and noisy spots. Veterinary guidance is to keep boxes away from appliances and startling noises and to never put them somewhere a cat can be cornered. In a rig, that means not tucking it beside the water pump or heater.
Ventilation is better than deodorizer. A box near a fan or a crackable window handles smell better than anything you can spray. Scented deodorizers near the box are counterproductive, and kitties don’t like the smell of fragrances anyway.

How to Keep the Litter Box From Spilling While You Drive

This is unlikely to happen, but just in case it’s a concern for anybody:

The best solution is a snug hole. Mine sits wedged among the gear in the trunk so precisely that it doesn’t shift, and I’ve never had to secure it. Plus, the heavy clay litter weighs it down. If your box has room to slide, a non-slip mat under it, a bungee across it, or a well between two seats all work.
You can also just empty it. For a long, rough travel day, some people scoop it clean and dump the litter in advance.

As for whether the cats use it while you’re moving: mine never have. Boudica and Pooka simply hold it. They’ve never had accidents, including on long drive days. My guess is they go when we stop for gas.

The Best Cat Litter for Odor Control Is Unscented

I have very strong feelings about that. I even used this litter when I lived in a house. It’s the best.

Use unscented clumping clay litter. I specifically use Purina Tidy Cats Free + Clean Unscented. Nothing else I’ve tried dries out the poop and forms clean, scoopable pee rocks like it does, and it doesn’t smell! Not at all.

“Odor control” and fragranced litters make it worse, not better. Your entire home will smell like cat urine with a hint of fake flowers. It doesn’t control anything, it doesn’t cover anything up. If anything, it amplifies the stink.
The research agrees. Cats prefer fine-grained, unscented litters, and many kitties are actively put off by scented or deodorant litters. The American Association of Feline Practitioners goes further, warning that scented crystals can trigger asthma in cats and people, which is worth taking seriously when you and your cat share the same few hundred cubic feet of air.
Lightweight vs. standard is a tradeoff I still struggle with (like, not life-changing, but it’s a decision factor). The ultra-lightweight formula is easier to change out and easier to carry; the heavier version is a little cheaper. I use the lightweight one because I’d rather lift less and it’s advertised as lasting 14 days instead of 10, but sometimes that $4 difference sways me.
Don’t switch brands on the road if you can help it. Cats can refuse an unfamiliar substrate, and standard guidance is to introduce a new litter in a second box beside the old one so the cat chooses. That option doesn’t exist when you’re 200 miles into a state with one pet store. Sometimes in a small town, there’s only one brand of litter, and it’s weird. Just carry extra when you know you’re going somewhere rural for a while.

How Many Litter Boxes Do You Need for Two Cats?

This is the first place my setup diverges from the official guidance. The girls have been sharing a box for years.

The veterinary standard is one box per cat plus one, so three boxes for two cats! I use one oversized tote. Boudica and Pooka have always shared it without conflict, and three boxes is not a thing that fits in a van.

If your cats are persnickety, territorial, or new to each other, follow the vet guidance or at least find the space for a second box.
If yours share happily, one large box is workable, but watch for warning signs.
The signs you need another box: peeing outside the box, straining, or one cat guarding the entrance while the other waits. That’s a sign the space is too small for both cats, not that one cat is just mean (Boudica). So do them a favor and add a second box.

How Often Should You Scoop the Litter Box?

The guidelines say scoop at least once a day. I scoop every other day, sometimes every third, and sweep up tracked litter at the same time. It really isn’t that bad.

Two things make that work:

An oversized box holds far more than a standard commercial one before it needs attention.
Unscented clumping clay dries waste out instead of trapping moisture.

If you’re using a small store-bought box, you don’t have that margin. Scoop daily. You and your kitty will both be happier.

How to Dispose of Cat Litter and Waste on the Road

Scoop into a bag right before you head into town. A small trash bag, or a zip-lock bag if it’s especially stinky and going to ride with you a while.
Drop it in a gas station trash can. That’s the whole system. Grocery stores, trailheads with service, and campground dumpsters all work too.
Do not bury or scatter it at your campsite. Domestic cat waste isn’t the same as wildlife waste! It can carry parasites into soil and water and it doesn’t belong in the places we all camp. Pack it out.

Can Cats Just Go Outside Instead?

Pooka meows at me in the morning to be let out, goes and finds soft dirt or sand, and does her business there. Boudica goes outside occasionally but mostly prefers the security of the indoor box.

It’s less work for me, and it tracks with what cats are drawn to anyway. The AAFP notes that many cats favor sand or soil, the substrate they’d use in the wild. And they’re better campers than most people: they always dig a hole and bury it. Naturally Leave No Trace without being taught.

That’s an option that opens up on the road rather than a plan you can count on. The indoor box is your main system for privacy, security, and night-time bathroom sessions, and anything else is a bonus.

Pooka doing her business in some pine needles while Boudica posts guard. Pooka will do this in any type of dirt, as long as the setting is quiet. Both will do it at the beach like they’re excited about it. Neither will do it at a busy campground, and sometimes you’ll be in a parking lot. So always keep a litter box around.

Cat Litter Box Setup for Life on the Road: Quick Checklist

A ten-dollar flat-bottomed storage tote with a hole cut in the lid beats every purpose-built litter box in a small space.
Put it where the cats’ path is short and yours is easy.
Unscented clumping clay. Fragrance is not your friend..
Wedge it in tight or empty it before rough travel days.
Scoop into a bag, drop it in a trash can in town.

The litter box is not the reason to stay home. It’s a tote, a bag of clay, and about two minutes every other day. Easy!

Sources

The Ohio State University Veterinary Medical Center, Indoor Pet Initiative: Litter Boxes
American Association of Feline Practitioners, Cat Friendly Homes: Everything You Should Know About Litter Boxes