Quick answer: A DIY foraging box costs nothing: an open cardboard box, crumpled plain paper and part of your cat's daily food or treats. It takes about five minutes. The safety rules matter more than the build: no string, ribbon, rubber bands, tape or staples, always supervise, and take the box away when the session ends.
Cats in the wild spend much of their day hunting for small meals. Indoor cats often get their food in a bowl in seconds. A foraging box puts a little of that searching back, using nothing more than packaging you would otherwise recycle.
The build is quick, but it is easy to make one dangerous by accident. Shipping boxes often arrive with tape, staples and plastic, and many people tie toys inside with string. This guide covers the five-minute build and the rules that make it safe.
Why Foraging Helps
International Cat Care explains that puzzle feeders let cats work for their food, which helps meals last longer and adds mental and physical stimulation. The Ohio State University Indoor Pet Initiative also lists toys and play that mimic hunting among the basic needs of indoor cats. A foraging box is the simplest version of both.
It can also help with weight management when the food comes from the daily ration rather than extra treats. Our kitchen-item foraging feeders for weight management covers that in depth.
Choosing the Right Box
Size matters more than type. The box should be wide enough for the cat to put its head and a paw in at once, and low enough that the cat can see the paper without climbing in. A shoebox suits a small cat; a low delivery box with the sides cut down suits a larger one. Plain brown cardboard is best. Avoid boxes that held cleaning products or chemicals, and boxes with heavy waxed or plastic coatings, which are often used for frozen food.
A box with a lid can be turned into a harder version later by cutting paw-sized holes in the lid. Keep the holes large enough that a paw can never get stuck: bigger than the cat's paw at full spread.
Materials From the Recycling Pile
- One open cardboard box, low enough for the cat to see in and reach the bottom.
- Plain paper: packing paper, brown paper or plain printer paper.
- Part of the cat's daily dry food, or a few treats.
- Optional: cardboard tubes from kitchen rolls, cut short.
Avoid glossy printed paper and paper with heavy ink, and skip newspaper if the cat is a paper chewer.
The 5-Minute DIY Foraging Box Build
- Strip the box: remove every piece of tape, label, staple and plastic film.
- Cut the flaps off, or fold them outward, so there is nothing to catch a head.
- Crumple six to ten sheets of paper loosely into balls and fill the box about halfway.
- Scatter the food through the paper, a few pieces at a time, so some sits on top and some deeper.
- Put the box on the floor in a quiet spot and let the cat find the first pieces on top.
That is the whole build. Most cats work out what to do within a session or two.
String Rules: The Most Important Part
String-like items are a known danger for cats. VCA Animal Hospitals explains that swallowed thread, string, yarn and dental floss can cause life-threatening intestinal problems, so the rules below are strict.
- No string, yarn, ribbon or thread anywhere in or on the box.
- No rubber bands or hair ties.
- No tape left on the box, including small torn pieces.
- No staples, plastic film or bubble wrap.
- No toys tied in with string; drop loose toys in instead.
- Never leave the box with the cat unsupervised.
If you see a cat with string hanging from its mouth or under its tail, do not pull it. Call your vet.
How Much Food to Use
Use part of the cat's normal daily food, not extra. Measure the full day's ration in the morning and take a small portion from it for the box. This keeps total calories the same. If you use treats instead, keep them to a small handful and reduce the main meal a little.
Start easy, with most pieces on top, so the cat succeeds quickly. A frustrated cat may give up and ignore the box next time.
Making It Harder Over Time
| Level | Change | When |
|---|---|---|
| 1 | Most food on top of loose paper | First sessions |
| 2 | Food spread through the paper | Once the cat digs confidently |
| 3 | Paper crumpled tighter | After a week or so |
| 4 | Food inside short cardboard tubes in the paper | When level 3 feels easy |
| 5 | A second box with a smaller entrance | For keen foragers |
Our $0 kitchen-item foraging feeders add more free options, and a soft toilet paper roll feeder for senior cats suits cats with stiff joints or fewer teeth.
Supervision in Practice
Stay in the room while the box is out. You do not need to watch every second, but you should be close enough to see if the cat starts chewing paper or cardboard. Ten to fifteen minutes is enough for most sessions. When the cat leaves the box, pick up any remaining food, remove the box and store it out of reach.
Some cats chew and swallow paper. If yours does, switch to a puzzle feeder made of hard plastic, or put food in cardboard tubes with the ends folded, which gives the search without loose paper.
Free Variations From Other Packaging
- Paper egg cartons: put one piece of food in each cup and close the lid loosely.
- Kitchen roll tubes: fold the ends in with a treat inside, and the cat bats it to shake it out.
- A muffin tray from the cupboard with a paper ball over each cup.
- A folded paper bag with the handles cut off, food inside.
Avoid plastic packaging, foam trays and anything with small detachable parts. Our zero-waste DIY toys from packaging lists more free ideas and what to check before each one.
Signs It Is Working, and When to Stop
A cat that enjoys foraging returns to the box, digs with a paw, and finishes calmly. A cat that swats at the box and walks away is probably frustrated, so make the next session easier. Stop using the box if the cat starts eating paper, or if it causes guarding between cats. International Cat Care's article on obesity in cats is a useful read if weight loss is the goal, as foraging works best alongside measured meals and vet advice.
Cleaning and Replacing
Cardboard soaks up food oils and saliva. Replace the paper every few sessions and the box itself every week or two, or sooner if it gets damp or smells. Recycle the old one. Because the box is free, there is no reason to keep using a worn one.
Multi-Cat and Rotation Tips
With more than one cat, give each its own box in separate spots, so one cat cannot guard both. Rotate the box with other enrichment so it stays interesting; our foraging feeder rotation system shows a weekly schedule, and the 10-minute DIY toy circuit pairs well with it on alternate days.
If you have a dog, put the box where the dog cannot reach it, since dogs may eat the cardboard and the cat's food.
Foraging Box Questions
Is a cardboard foraging box safe for cats?
Yes, when you remove all tape, staples, labels and plastic, use plain paper, avoid string and ribbon entirely, and supervise each session. Take the box away afterwards. If your cat chews and swallows paper or cardboard, switch to a hard plastic puzzle feeder instead.
How much food should go in a foraging box?
Use part of your cat's normal daily ration rather than extra food, so total calories stay the same. Measure the day's food in the morning and set aside a small portion for the box. If you use treats, keep them few and reduce the main meal slightly.
Why is string dangerous for cats?
Swallowed string, thread, ribbon and similar items can cause serious intestinal blockages that may need surgery. Cats find them hard to spit out once they start chewing. If you see string hanging from a cat's mouth or rear, do not pull it; call your vet straight away.
How do I get my cat interested in a foraging box?
Start with most of the food sitting on top of loose paper so the cat succeeds right away. Use a strong-smelling treat for the first sessions. Once the cat digs confidently, spread food deeper and crumple the paper tighter to make it harder.
