If you’ve ever spent time around a cat tree—whether as a fellow cat parent or, for me, as someone who’s built these structures for a living—you know they’re more than just furniture. They’re napping spots, scratch stations, snack ledges, and, let’s be honest, favorite restrooms for our feline friends. Over months (even weeks) of use, cat trees can build up more than just cat hair: there’s dander, dust, residual urine or fecal matter, and even flea eggs, all of which can trigger allergies in humans and make your kitties’ space less healthy. As a cat tree supplier, I get asked this question all the time: “How do I disinfect a cat tree without ruining it or putting my cats at risk?” Cat Tree
It’s not as simple as grabbing a random cleaner from under your sink. I’ve seen too many people spray bleach directly on the carpet of a new tree, only to have the fabric fade or the wood warp. Or they use essential oils, which I learned early on are toxic to cats (even the diffuser kind, let alone rubbed on surfaces they lick). Disinfecting a cat tree needs to balance three things: getting rid of harmful germs, protecting the materials we build our trees with, and keeping it safe for the kitties that use it. Let’s break this down step by step, based on what I’ve learned from years of building these trees, testing cleaning methods in my own home, and checking in with vets and cat behaviorists.
First, let’s talk about the prep work—because skipping this step means your disinfectant won’t work as well. Most people jump straight to spraying cleaner, but the biggest culprit hiding on cat trees is loose debris: hair, dirt, crumbs, and old litter bits. I always tell customers to start with a full dismantle, if their tree is designed to come apart. Our trees are engineered to be easy to take down—each post, platform, and sisal wrap is secured with simple screws and bolts, no tricky tools needed. Why dismantle? Because gaps between platforms, under the sisal rope, and inside the hollow wooden posts hold more dirt than you’d ever see on the surface. To prep, grab a stiff-bristled brush (an old dish brush works, or even a pet hair brush designed for furniture), and go over every inch: brush the sisal posts to lift embedded hair, flip platforms over to knock out crumbs from the bottom, and empty any removable parts (like the little pouches some of our trees come with) into the trash. For hair buildup, I’ve found a rubber squeegee works too—run it over the carpet to pull up clumps that the brush misses. Once you’ve brushed off all the loose stuff, vacuum every part with a brush attachment. Don’t forget the edges of the posts and the nooks under perches—those are hot spots for germs.
Next, you need to figure out what type of materials your cat tree is made of, because not all disinfectants play nice with every material. As a supplier, we use three main materials for our trees, and each needs a different cleaning approach: sisal rope, carpet, and solid wood. Sisal is natural fiber, so harsh chemicals can make it brittle and fray faster. Our sisal is tightly wrapped, but using something like ammonia will eat away at the fibers over time, leaving gaps where your cat can catch their claws. For carpet, we use stain-resistant, low-pile carpet designed specifically for pet use, but strong bleaches can discolor it or break down the backing, which leads to the carpet peeling off the wooden platform. Solid wood posts and bases are the sturdiest, but they can warp if they get too wet, so you don’t want to soak them in water. That’s why we never recommend one-size-fits-all cleaners—let’s go through the best options for each material, and then the full process.
For the actual disinfection, vets and the ASPCA recommend using cat-safe, EPA-registered disinfectants that kill the germs cats are most exposed to: parvovirus, ringworm, and the bacteria that causes urinary tract infections. But if you prefer homemade options (I know many cat parents do), there are safe alternatives that work well, as long as you mix them right. The first homemade option is a 50/50 mix of white vinegar and water. Vinegar is acidic, so it cuts through grease and dander, and it kills 99% of common household germs—just make sure it’s plain white vinegar, not apple cider, because the dark color can stain light carpets. The second option is a hydrogen peroxide mix: 3% hydrogen peroxide (the kind you keep in your first-aid kit) mixed with water, about one part peroxide to four parts water. Hydrogen peroxide is gentler than bleach, and it breaks down into water and oxygen, so it doesn’t leave harsh fumes. A lot of people ask about essential oils like tea tree or lavender, but I can’t stress enough how dangerous these are for cats. When cats groom themselves, they ingest whatever is on their paws or fur, and essential oils can cause liver damage, seizures, or even death. We had a customer a few years back who used a tea tree oil spray on her new tree, and her 2-year-old kitten got sick within hours—she stopped using it, and the kitten recovered, but it’s not worth the risk.
Now, the step-by-step process that works for every cat tree, from our smallest wall-mounted perch to our large 7-foot multi-level tree. First, if your tree has any removable fabrics—like a cushion on the top platform or a little bed cover—remove those and wash them in the washing machine on a gentle cycle with a mild, pet-safe detergent. Don’t use fabric softener, because it leaves a residue that cats hate and can irritate their skin. Dry them on low heat or air dry, because high heat can shrink the fabric or loosen the threads. Once the fabrics are done, go back to the frame. For wooden parts, dip a clean microfiber cloth in your vinegar-water or peroxide mix, wring it out until it’s almost dry—you don’t want it soaking wet, because wood warps easily. Wipe down every surface of the wood: the base, the posts, the underside of platforms. For sisal posts, don’t soak them at all. Instead, spray a light mist of your disinfectant (either the store-bought cat-safe kind or a very dilute vinegar mix—like 1 part vinegar to 8 parts water) onto a cloth, then gently wipe the sisal. If the sisal has a tough stain, use the stiff brush to scrub it lightly, then wipe with the damp cloth. Don’t scrub too hard, because that can loosen the sisal rope and leave frays. For carpeted parts, apply your disinfectant to a cloth (again, not too wet) and wipe the carpet. If there’s a deep stain or odor, you can spray a little more, but let it sit for no more than 5 minutes before dabbing it with a dry cloth—don’t let it sit, because it can seep through to the wood backing.
Wait, what about fleas? A lot of cat parents worry about that, and rightfully so—fleas can lay eggs on a cat tree that hatch weeks later, even if you don’t have an active infestation. If you suspect fleas or eggs, the process changes a little. Before disinfecting, after you’ve brushed off all loose hair, sprinkle food-grade diatomaceous earth (DE) all over the carpeted parts and sisal posts. DE is non-toxic to cats and humans, but it kills fleas by drying out their exoskeletons. Let it sit for 24 hours (put a towel over the top so your cat doesn’t sit in it), then vacuum it up. Once the DE is gone, go through the normal disinfection steps. That’s the safest way to get rid of fleas without using harsh pesticides.
Now, how often should you do this? For most cat trees, a quick weekly clean (brushing hair, vacuuming) keeps it in good shape. A full deep disinfection every 2-3 months is enough, unless you have a kitten that likes to use the tree as a potty, or your cat has a contagious illness. I have three cats of my own, and I deep clean my tree every 2 months—last time I did it, I was shocked at how much dander and hidden crumbs I found even after weekly vacuums.
As a supplier, I also have a few tips specific to our cat trees to make cleaning easier. All our removable parts are labeled, so you don’t have to guess which cushion goes where. We use heavy-duty, pet-grade materials that resist stains and fraying, so even if you accidentally use a little too much vinegar one time, it won’t ruin the tree. We also recommend against putting the tree near a litter box, because that increases the chance of urine spills and odors that are harder to clean.
If you’re reading this and wondering about buying a new cat tree that’s easy to clean, I can help. Whether you need a small tree for a studio apartment or a large multi-level one for multiple cats, we build trees with cleaning in mind—simple disassembly, stain-resistant materials, and no hard-to-reach gaps that trap dirt. If you have questions about custom sizes, material options, or bulk orders for shelters or vet clinics, feel free to reach out to discuss your needs.
Bamboo Woven Cat Bed References:
- American Society for the Prevention of Cruelty to Animals (ASPCA). "Toxic and Non-Toxic Plants." ASPCA.org.
- Centers for Disease Control and Prevention (CDC). "Guidelines for Disinfecting Surfaces in Homes with Pets." CDC.gov.
- International Society of Feline Medicine (ISFM). "Feline Environmental Health and Safety." ISFM.net.
- Environmental Protection Agency (EPA). "List Q: Disinfectants for Use Against SARS-CoV-2." EPA.gov.
- Tufts University Cummings School of Veterinary Medicine. "Cleaning and Disinfecting for Pet Owners." Tufts.edu.
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