Decorated cardboard fort building

From deliveries, shops, and appliance purchases. The largest boxes, from fridges, washing machines, furniture, and televisions, make the best forts, so it is worth saving a big box when one arrives or asking at shops and appliance stores, which often have large boxes to give away. Several medium boxes can also be joined into a bigger structure. Clean, sturdy, undamaged boxes work best, since the project depends on the cardboard being strong enough to build with and climb into.

Reinforce the joints generously with strong tape. Children play hard in a fort, so a structure relying only on slotted flaps racks and collapses under that enthusiasm, which is why taping every joint and corner well, doubling up at load points, and adding internal supports where boxes meet matters so much. Building with the largest, sturdiest boxes and reinforcing as you go produces a fort that withstands real play and lasts for days or weeks, rather than caving in the first time a child climbs inside.

An adult, always, since the craft knife is the one real hazard. Cutting doors, windows, and shapes cleanly in cardboard needs a sharp blade and care, so an adult should plan and make all the cuts while children stand well clear, then hand the structure over for the safe, fun parts. Children can absolutely lead the building decisions, the joining, and all the decorating, so they stay fully involved. Keeping the blade strictly with the adults makes the whole project safe.

Almost anything a box can suggest, which is the joy of it. Castles with battlements, rockets and spaceships with control panels, houses with front doors and letterboxes, shops, cars, tunnels, and dens are all popular, and the same boxes can be rebuilt into something new another day. Because cardboard becomes whatever the children imagine, the structure is limited only by ideas, and adults often get carried away adding detailed features. Letting the children's imagination lead the theme is what makes each fort unique.