Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Does My Cat Chew on Cardboard Boxes? 6 Vet-Reviewed Reasons

playful tabby cat looking in cardboard box

Some cats are chewers, and some not so much. Cats that enjoy a good chewing session might gravitate to cardboard boxes. They are everywhere and can be everything from your cereal boxes, to your moving boxes, to your goodies that just arrived from your online shopping spree.

Maybe you’ve been wondering if it’s something you should worry about or if it’s just your cat who is a little weird. Well, rest assured, many cats seem to enjoy gnawing on cardboard boxes, but it is important to double-check the reasons behind this behavior.

divider 2 cats

Top 6 Reasons Why Your Cat May Chew on Cardboard Boxes

1. Sore Gums

cat brushing teeth-cynoclub_Shutterstock
Image Credit: cynoclub, Shutterstock

If you have a kitten who seems to love chewing on cardboard, she may be going through some teething pain. Just like human babies find relief from biting down on teething rings, kittens find relief from chewing—and cardboard boxes will fit the bill.

However, if your adult cat is gnawing, it could indicate that her teeth or gums have some issues, like gum disease. Gastrointestinal problems can also be a problem, and just like the teething kitten, your cat is chewing to relieve the discomfort. If your cat’s gums are red, this could indicate a problem with her teeth and gums, and she should be examined by your vet.

You could also invest in some cat toys that are designed for chewing and provide her with dental treats.


2. Territorial

Just like when your cat rubs on everything in sight (including your legs) to mark her territory, she might be doing the same with the boxes. Chewing on objects around the house is a great way for a cat to leave her scent on everything.

If your cat seems to be rubbing her cheeks on the box in between bouts of chewing, then there’s a good chance that she’s claiming these boxes as her own. This is nothing to worry about, as long as she isn’t aggressive about defending her territory.


3. Prey Drive

cat hunting in grass
Image Credit: SJ Duran, Shutterstock

Cats are fantastic hunters, and they use these instincts as a part of their playtime. We’ve all seen our cats stalking, pouncing, and biting various toys (and sometimes our feet). The cardboard box might just be another outlet for your cat to tear into.

Since most cats, particularly indoor cats, don’t have the opportunity to hunt and kill prey, they will use objects to satisfy this urge. If your cat seems to attack the cardboard by biting as well as using bunny kicks (holding onto the box with their front legs and kicking it with their back legs), then there’s a good chance she’s treating the box like its prey.


4. Creating a Fortress

This one has some similarities to the third point above on prey instincts. Many aspects of how cats play are based on their hunting instincts, such as chasing the feather wand, bunny-kicking the large stuffie, and acting crazy inside the large cardboard box. They love to pop out and smack your ankles as you walk by, and nothing beats a dark and enclosed space for a cat.

Part of this behavior can sometimes include a cat attempting to make the box perfect for her needs. Maybe she’ll chew a hole on the side of the box so she can peek out and stick her front leg out in the attempt to snag something.


5. Boredom

If your cat is easily bored, biting on cardboard boxes might be a way for her to find something to do and expend some of her energy. She might even be trying to gain your attention. Like a toddler who seems to act out to get a parent’s attention, cats will sometimes act mischievously because they will catch your attention.

If you give your cat attention while she’s doing something destructive, you are actually teaching her that if she keeps doing this behavior, she will always get your attention. So, do your best to ignore your bored feline when they behave this way.


6. It’s Fun!

Cats are just very curious and playful animals, and they are endlessly amused by a variety of items and objects that are a part of our everyday world. They enjoy knocking things off shelves, sitting on our laptops, licking our hair, and watching us brush our teeth.

Part of the allure of a cardboard box is that it’s a great place to explore, hide, sleep, and play. The texture of the box might feel great to chew on, and maybe your cat is just expending some of that zany energy she has while playing hide and seek inside the box.

Hepper Hi-Lo Cardboard Cat Scratcher with Real...
  • Premium Materials - Hepper's cardboard scratcher is made with dense, B-flute cardboard, and a metal...
  • High, Low and Lower - A single cat scratch pad won't keep your cat engaged. 3 unique positions keeps...
  • Activates Muscles - The Hi Lo isn't just a cat nail file to stop the chief cat couch scratcher. The...

We're quite fond of cardboard as a material in cat scratchers, which is why we love the Hepper Hi-Lo Cat Scratcher. Encased within a well-constructed, modern birch plywood frame, this scratcher is designed with both cats and their owners in mind. It offers three versatile configurations to keep your feline friend active and entertained while enticing them to fulfill their natural scratching instincts (and away from scratching things they shouldn't). For more details, click here!

At Catster, we’ve admired Hepper for many years, and decided to take a controlling ownership interest, so that we could benefit from the outstanding designs of this cool cat company!

divider 2 cats

Eating the Box

Another consideration we need to explore is whether or not your cat is eating the box. Some cats suffer from pica, which is eating and ingesting items that are not food.

Medical issues that cause pica:
  • Thyroid disease
  • Diabetes
  • Inflammatory bowel disease
  • Neurological disease
  • Malnutrition
  • Excessive hunger
  • Vitamin deficiency
  • Anemia
  • Intestinal parasites
  • Feline leukemia
  • Feline immunodeficiency virus

It can also be behavioral problems that stem from compulsive disorders, boredom, being weaned too young, or stress. If your cat seems to be easily stressed, she could be destroying boxes out of some kind of anxiety, particularly if she’s eating them as well.

If you suspect your cat might be eating cardboard (or anything else that is non-food) and might have pica, do take her to see your vet.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

Is It Safe?

In general, if your cat is chewing cardboard and not swallowing, it’s usually quite safe. You just need to be sure that there aren’t any sharp bits in it, such as staples, or that the edges of the box itself aren’t sharp.

Make sure the box is empty and doesn’t contain anything that could be harmful to your cat, such as sharp objects or string. If your cat is prone to pica, swallowing string can cause an intestinal blockage and might need to be surgically removed.

You also need to be sure that the box does not contain any toxic substances. This could be a serious problem if your cat chews on the box and accidentally ingests a harmful substance. Some boxes are coated and treated with chemicals, so be sure that any box your cat plays with has not been chemically treated.

Again, if you believe your cat has eaten some of the box or anything dangerous inside, please see your vet immediately.

How Can You Make Your Cat Stop?

Perhaps you’re worried about the chewing, and you just want your cat to stop. Better to be safe than sorry, right? Well, here are a few methods you can use to try to stop the behavior.

Remove It

One solution, and the simplest one, is to just remove the box. Recycle it or store it in a room, basement, or closet that your cat does not have access to.

Redirect

You could redirect your cat. Offer an alternative chewing toy and give her treats when the toy is presented and chewed on.

Learn to recognize the scenarios when you normally see her engaging in the chewing box behavior. Don’t forget the toddler rule. If you scold your cat, she will see this as attention and will more than likely continue the behavior.

This all starts with you first trying to understand why your cat is chewing on the cardboard. After you’ve read the above 6 typical reasons for why cats chew cardboard, you should have a much better idea of why your cat is chewing it, which will help you address the problem.

You will offer the toy before she engages in chewing the box. Continue offering favorite treats for playing with the toy rather than with the box.

If your cat is bored, make sure you play with her more and ensure she has enough toys and other outlets to play with and be engaged in (access to look out of windows, etc.). Sometimes finding your cat a playmate, namely another cat, can stop a lot of unwanted behaviors and give her lots of opportunities for play so that she’s less likely to be bored.

Remove the box access and toy access when you can not supervise the cat’s behavior.

Discourage

Lastly, we have ways of discouraging your cat from chewing on boxes. If your cat is chewing on boxes that need to stay where they are, there are sprays designed for animals that taste bad and will deter your cat from chewing on them. Bitter apple spray, for example, could be sprayed on a surface to stop your cat’s negative behavior.

There are also sprays that have motion detectors and will make a harmless loud hissing sound that will startle your cat that you can place near the boxes. Even placing aluminum foil or double-sided tape on these surfaces can act as a deterrent.

divider 2 cats

Conclusion

While a cat chewing on cardboard boxes can be considered normal and harmless behavior, just be sure to watch your cat when she’s engaging in this behavior. You want to rule out any medical problems and make sure she’s not harming herself in some way. Also, ensure the box is empty and not treated with or containing harmful chemicals.

As long as you know your cat is safely enjoying herself, and you don’t mind small pieces of cardboard scattered around your house, then let her have her fun. After all, cats and boxes are like peas and carrots.

You might be interested in:


Featured Image Credit: Creative Cat Studio, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

What to Do With a Dead Cat? 8 Vet-Reviewed Steps to Take

Discovering a deceased (dead) pet can be a difficult situation. While we all want our cats to live forever, sadly, it’s just not...

How Do Cats Carry Their Kittens? & Why It Doesn’t Hurt Them (Vet-Verified Info)

If your cat has recently had kittens, you’ve probably seen her moving the kittens around by the scruff of their necks. Many pet...

How to Become a Cat Breeder: Vet-Reviewed Ethics & Standards Explained

Excited Cats advocates for adopting before shopping, though we fully understand there are many reasons for seeking a breeder. So, we encourage it...

Hepatitis in Cats: Vet Explained Signs, Causes, & Care

You may not have heard of hepatitis in cats (more accurately referred to as cholangitis/cholangiohepatitis), but it is one of the leading causes...

More related

10 Best Cat Carriers in Canada: 2025 Reviews & Top Picks

There are several items that all pet owners should have that are essential for taking care of a pet. While carriers aren’t necessarily...

How to Calm an Angry Cat: 7 Vet-Approved Steps & Tips

Cats can experience a wide range of emotions, anger included. Although they might not experience anger the same way we do, there’s no...

Hippie Cat Names: 240 Great Ideas for Your Laid-Back Cat

You’ll find them lazing about in the sunniest patch on your floor or snoozing carefree in your vegetable patch—we all know and love...

A Bittersweet Farewell: Crystal & Ivy Say Goodbye

Welcome to the Wednesday Cats of Catster! Every week, we share a story from one of our cat-loving Catsters. This week is about...

Keep reading

How Do I Get Poison Ivy Off My Cat Safely? 5 Vet Recommendations

Poison ivy can cause serious problems for you and your cat. You can spread the oils that cause the rash to each other, and complications can pop up in humans and felines. Luckily, poison ivy is typically nothing more than...

Poison Ivy Plants

Why Is My Kitten Sneezing? 5 Vet Approved Reasons

Kittens are some of the most adorable creatures on earth. They often weigh just a few ounces at birth and quickly grow into sweet bundles of feline perfection. But kittens, just like human babies, sometimes sneeze, refuse to eat, and...

a kitten sneezing in pink background

Why Don’t My Cats Cuddle With Each Other? 10 Vet-Approved Reasons

There are few things cuter than the sight of two cats snuggling together. When they start grooming each other, your heart just melts. Unfortunately, not all cats will cuddle with each other. It can be disheartening when your cats do...

together two cats with different fur colors

Can Cats Have Autism? Vet-Verified Facts & Science

One of the things that we love most about our cats is how much like us they often are. Whether it’s the need for affection and companionship or a deep desire to play, cats and humans have much in common....

cat playing alone

Evolve Cat Food Review of 2025 : Recalls, Pros & Cons

Review Summary Crafted with premium, whole-food ingredients, Evolve cat food contains exactly the nutrition your feline needs to stay in peak health. It’s a bit pricey, but you’re getting quality recipes for what you pay. Granted, not all cats love...

Evolve Cat Food Review

Petting Aggression: Why Cats Bite the Hand They Love & What to Do (Vet-Approved)

You’re sitting there ever-so-innocently petting your beloved feline, and—ouch! That really hurt! Your cat has turned to bite you. Some will flop on their bellies, grab your hand, and kick; others will sound disgruntled as if it were a warning...

aggressive cat biting human hand

Can Cats Eat Cottage Cheese? Vet-Verified Nutrition Facts

We know that cats can be picky eaters, but cheese seems to be one treat that is universally loved. So, can cats eat cottage cheese? Yes, you can feed cottage cheese to your cat, but only in moderation. Some vets...

Can Cats Eat Cottage Cheese

How to Care for a Cat While Working Full-Time: 7 Vet-Approved Tips

Cats are popular pets for a lot of reasons, but partly due to their independence. As long as they have food, water, and a clean litter box, cats will entertain themselves until you’re around for playtime and snuggling. This helps...

woman using a laptop on couch with her cat