Quick answer: A scratch-and-hide combo is a cardboard box with a cat-sized doorway and a corrugated scratch pad set into the roof. Children can measure, decorate with safe crayons and assemble pieces, while an adult does all the cutting. It takes about three hours across a weekend and gives the cat a place to rest and scratch in one spot.
Building something for the family cat is a great weekend project. Kids learn to measure and plan, and the cat gets a new favourite spot. A combined hideaway and scratcher is simple enough for primary school children with an adult doing the cutting.
For more cardboard builds, see our cardboard castle hub and our kids-and-cats castle weekend.
Safety Rules Before You Start
- Only adults use craft knives or box cutters.
- Use water-based PVA or wheat paste glue, not hot glue or solvent glue.
- Remove all staples, plastic tape and labels from boxes.
- Decorate with wax crayons or water-based paint, and let paint dry for 24 hours.
- Keep the cat out of the room while cutting and gluing.
Our guide to tape, ink and staples in cardboard builds explains why these rules matter for a cat's safety.
Materials for the Combo Box
| Item | Amount | Notes |
|---|---|---|
| Sturdy box | 1, about 45 x 35 x 35 cm | Double-wall card is best |
| Corrugated strips | Enough to fill a 30 x 20 cm tray | Cut from spare boxes |
| PVA glue | 1 bottle | Non-toxic, water-based |
| Ruler and pencil | 1 each | For the kids |
| Craft knife | 1 | Adult use only |
| Crayons | A few colours | For decorating |
Our checklist for kid-safe scratcher materials lists more safe options.
Who Does What
Split the jobs by age. Children aged 5 to 7 can decorate and help hold pieces while the glue dries. Ages 8 to 11 can measure, mark cut lines, and place strips into the scratch tray. Teenagers can help with careful cutting under supervision. An adult handles every blade cut.
Agree on the plan before starting so everyone knows their job.
Choosing the Right Spot in the Home
Before building, walk round the home with the kids and look for places the cat already sleeps or watches from. A quiet corner with a view of the room is ideal, away from the front door, the washing machine and the litter box. Children can vote on two or three options and then watch where the cat goes over a day to settle the choice.
This turns placement into part of the project and teaches kids to think about what the cat prefers, not just where the box looks nice.
Rainy-Day Variations
If the weekend is short, split the build into shorter sessions after school. The scratch tray can be made on one evening and left to dry, the box cut and assembled on another. For very young children, an adult can prepare all the pieces in advance, so the kids only glue strips and decorate, which keeps attention spans happy.
Saturday Morning: Plan and Mark
Seal the box flaps with PVA glue rather than tape, and let it dry. Have the kids mark a doorway on one short side: a circle about 18 cm across, starting 5 cm above the floor. Then mark a rectangle on the top, 30 by 20 cm, centred, for the scratch tray.
Older children can double-check the measurements with a ruler. Measuring twice is a good habit to learn early.
Saturday Afternoon: Cutting
The adult cuts the doorway and the roof opening. Smooth any rough edges with fine sandpaper so they do not snag fur. Keep the piece cut from the roof; it becomes the base of the scratch tray.
While the adult cuts, kids can cut corrugated cardboard into strips with child-safe scissors if the card is thin enough, or sort and count strips that the adult has already cut.
Building the Scratch Tray
Make a shallow tray 30 by 20 cm with sides 5 cm high, using the roof cut-out as the base. Glue the strips standing on edge, packed tightly together, so the corrugated edges face up. This is the satisfying part for kids: they can fill the tray like a puzzle.
Weigh the tray down with books for a few hours while the glue sets. Our corrugated cardboard guide explains which card makes the most durable strips.
Sunday Morning: Assembly
Lower the finished tray into the roof opening so it sits flush with the top of the box, and glue it in place. Push extra strips into any gaps. Add a folded cardboard lip round the doorway to strengthen it, glued on both sides.
Let everything dry for at least two hours before the cat gets near it.
Decorating Safely
Let the kids decorate the outside with wax crayons: windows, a door, a name plate for the cat. Keep decoration off the scratch tray and the inside walls, where the cat will chew or rub. Avoid glitter, stickers and markers with strong solvents.
Our one-hour castle build has more ideas for simple decoration.
Introducing It to the Cat
Place the box in a quiet corner of the living room where the cat already likes to rest. Put a familiar blanket inside and sprinkle catnip on the scratch tray. Let the kids sit nearby but not crowd the doorway.
Encourage them to use a wand toy to lead the cat to the box. International Cat Care on play has good advice on gentle, cat-friendly play that kids can follow.
Teaching Kids to Respect the Hideout
A hiding place only works if the cat feels safe there. Explain to children that when the cat is inside, it is resting, and nobody should reach in, peek through the doorway or pick the box up. This is also a good lesson in reading a cat's signals: ears back and a swishing tail mean leave it alone.
International Cat Care on cat-friendly homes explains why every cat needs safe hiding places.
Keeping a Simple Log
Older kids may enjoy keeping a short log for the first week: when the cat went inside, how long it stayed and whether it scratched the tray. It turns the project into a small science activity and shows the family how the cat uses its new space.
Looking After the Combo
The scratch tray wears down over a few weeks. When the top looks shredded, lift out the tray and refill it with fresh strips, or flip the strips over. Kids can help with the refill each month. Recycle the whole box once the walls soften or get dirty.
Our DIY scratcher hub has sturdier builds once your family is ready for a bigger project.
Ideas for a Second Weekend
Once the first box is a success, add a second box with a doorway connecting the two, or build a ramp from a folded card strip up to the roof tray. The castle hub shows multi-box designs that grow over several weekends.
Keep each addition stable; a tall stack of boxes can topple when a cat jumps on it.
What Kids Learn From the Project
Beyond the fun, children practise measuring, planning, patience while glue dries, and empathy for an animal's needs. Watching the cat choose to use something they made is a proud moment, and it builds a habit of caring for pets thoughtfully.
Family Build Questions
What age can kids help build a cat box?
Children from about 5 can decorate and hold pieces while glue dries. From 8 they can measure, mark lines and fill the scratch tray with strips. Teenagers can help cut under close supervision. An adult should handle every craft knife cut, whatever the child's age.
What glue is safe for a cardboard cat house?
Use non-toxic, water-based PVA or a homemade wheat paste. Avoid hot glue, which leaves hard strings the cat can chew, and solvent glues with strong fumes. Let the glue dry fully, at least two hours for assembly joints, before the cat gets near the box.
How big should the doorway be?
A circle about 18 cm across, starting 5 cm above the floor of the box, suits most adult cats. The raised edge makes the box feel more enclosed and secure. Smooth any rough edges with fine sandpaper so they do not catch fur.
Can kids decorate the box with markers?
Wax crayons and dry water-based paint are safer choices. Some markers contain solvents with strong smells. Keep all decoration off the scratch tray and inside walls, where the cat chews or rubs, and skip glitter and stickers, which cats can swallow.
How do we get the cat to use the box?
Put it somewhere the cat already likes to rest, add a familiar blanket inside and catnip on the scratch tray. Use a wand toy to lead the cat over, and ask the kids to stay calm and not crowd the doorway while the cat explores.
