Why Every Child Builds Forts — and What to Do with the Place-Making Instinct

Indoor playhouse for kids — Loopo Little House setup as a cosy hideout

Sooner or later, almost every child builds a fort. The toddler crawls under a blanket draped over two chairs; the preschooler turns the laundry basket upside down to climb inside; the five-year-old wants the cardboard box rather than the toy that came in it. The urge to build a small, enclosed space — a den, a fort, a hideout — is one of the most familiar play patterns of childhood.

This is often described as place-making: making a piece of space your own. Research on children and their environments has looked at these hideouts for decades — the American educator David Sobel, for example, wrote about the “special places” that children aged roughly five to twelve find or build for themselves. In this guide, we’ll look at why this urge is so common, what a fort can offer your child, and how to give it a slightly more permanent address — without sacrificing your good blankets in the process.

At a glance

  • The place-making instinct: toddlers love crawling into small spaces; school-age children build dens and hideouts of their own
  • What a fort can offer: a small world of their own making, a retreat, imaginative play, shared play
  • From temporary to lasting: blanket forts → a dedicated indoor playhouse
  • Footprint of the Loopo House: about 107 × 60 cm, 113 cm high, plus some free space around it
  • Age: the House setup is from 2 years according to the Loopo manual; the product page recommends the Loopo Little House 5in1 for ages 2–10

What Is the Place-Making Instinct?

Place-making is the human tendency to mark, shape and inhabit a small piece of space. Adults do it too — we arrange our desks, light a particular lamp at home, choose “our” spot on the sofa. In children, the instinct is unfiltered and physical: pulling a blanket over two chairs, claiming the space under the dining table, building a cushion wall around themselves.

Researchers have looked at these places more closely. In Children’s Special Places, David Sobel describes how children shape small environments of their own in their hideouts — places they control, where they enjoy a break from the rules of the adult world. The Swedish researcher Maria Kylin studied the dens of children aged 9 to 13, both as physical structures and from the children’s own point of view. And in a study by Mary Ann Kirkby, enclosed refuges were clearly preferred by children over traditional playground equipment.

So the fort isn’t a phase to be tolerated. It reflects a very common need — and it’s a kind of play that offers children several opportunities at once.

Place-making across childhood

  • Toddlers: crawling into small spaces, hiding under tables
  • Preschoolers: pulling blankets over chairs, “mine” zones
  • From around 5 years: more elaborate forts built from cushions, blankets and chairs
  • Up to around 12 years: more permanent dens, secret hideouts, “club houses” — the stage of childhood Sobel describes

The stages overlap, and every child moves at their own pace.

What a Fort Can Offer Your Child

Forts look like simple play — and they offer children quite a lot.

1. A world of their own. A young child’s life is mostly arranged by adults — meals, bedtimes, where to sit in the car. A fort is a piece of the world they shape and decide about themselves. Sobel highlights exactly this.

2. Less input. In an enclosed space, light and sound are softened. Many children find that pleasant; for sensitive children, a small, soft hideout can be a place to catch their breath during a busy day.

3. Imaginative play. A fort instantly becomes a ship, a castle, a shop, a hospital. The walls are a blank canvas for the imagination — and changing the space is part of the play.

4. Shared play. Forts are often shared. “Come into my house.” “Only friends can come in.” Inviting another child into a fort is one of the earliest ways of saying you belong here, with me.

5. Quiet time. Especially for older toddlers and preschoolers, a fort can be somewhere they retreat to by themselves when they need a quiet moment — without an adult having to tell them to calm down.

From Blanket Fort to a Lasting Den

Parents often discover the fort instinct by accident — by stepping on a cushion barricade in the living room. The blanket-and-chairs version is wonderful, but it has obvious limits: it falls apart, takes over the lounge, and uses up the soft furnishings you’d rather keep.

A dedicated indoor playhouse or den gives that instinct a slightly more permanent address. The benefits are practical:

  • It always stands. The child can return to it without rebuilding from scratch
  • It looks like furniture rather than chaos in the lounge
  • No balancing chairs: a stable frame instead of upturned tables and wobbly chair constructions
  • It can grow — as your child gets older, the same pieces reconfigure into a climbing structure or a small bridge

That way, an indoor playhouse can become a fixed spot in the children’s room — the place where books are read, where soft toys live and where siblings retreat on a rainy afternoon.

Designing a Small "Yes Space" at Home

Before you build (or buy), it’s worth thinking about what your child actually needs from their den.

Size: Smaller than you’d think. A toddler needs little more than a corner they fit into comfortably; two children need a bit more room for themselves and a few toys. Resist the urge to make it bigger — children prefer cosy. For comparison: the House setup of the Loopo Little House stands on about 107 × 60 cm.

Light: A den with some natural light is much friendlier than total darkness. A bright spot is ideal — but if children can climb on the den, don’t place it directly under a window. A small battery-powered LED lamp helps too; keep cables out of reach of young children.

Soft floor: A play mat, sheepskin or thick rug inside the den makes it instantly inviting and absorbs sound.

Fabric to drape: A muslin, light blanket or curtain across the front gives the child the option to “close” the space when they want to. If your child climbs on the setup, remove the fabric first. Don’t use long cords or loops to fasten it.

A few favourite things: Books, a soft toy, a cushion. Resist filling it with toys — the magic is the empty space.

Loopo Little House — indoor playhouse with natural wood frame

The Loopo Little House — A Den That Doubles as Furniture

The Loopo Little House is a modular Loopo Playset (5in1) that lets you build exactly this kind of small space. Its House setup, made from solid beech and beech plywood, gives your child a small enclosed structure they can call their own — without taking over the room.

What makes it work as an everyday den:

  • The right size — about 113 cm high, 107 cm wide and 60 cm deep: compact enough for a corner of the room
  • A real wooden frame instead of fabric on chairs — tested to EN 71-1 and EN 71-8, with a load capacity of 120 kg for the House setup according to the manual
  • Open sides that you can dress with a curtain or a sheet, or leave bare. If your child climbs on the setup, remove the fabric first; don’t use long cords or loops to fasten it
  • Modular — when your child outgrows the “house” phase, the same pieces rebuild into the Small Pikler Triangle T2, Panther or Short Steady Bridge setups. For House with Swing, the house is anchored to the wall with the W1 wall bracket; the bracket and the Classic swing are included in the set. For the Small Pikler Triangle T2 and Panther, the manual also recommends the metal stability pin set, which is not included

The Little House gives the place-making instinct a lasting address. You don’t need to rebuild it every afternoon. You don’t sacrifice your good blankets. And the light, untreated beech looks like part of the room, not like clutter.

Pikler and Montessori — where they meet the place-making instinct

Both pedagogical traditions put great weight on a prepared environment in which the child can choose for themselves. Maria Montessori designed child-sized rooms with child-sized furniture where children could move freely. Emmi Pikler advocated for spaces where children could explore at their own pace. A small den fits naturally with both approaches.

Other Loopo Setups That Support Cosy Play

The Little House isn’t the only way to build a small space with the Loopo System:

  • Loopo Froggie 2-in-1 — the smallest Loopo Playset, for children from 10 months. Set up as a low Pikler triangle (Small Pikler Triangle T2), it becomes a little tent with a sheet draped over it; take the sheet off again before climbing, and don’t fasten it with long cords or loops
  • Loopo Cliff 7-in-1 — bigger and bolder (ages 2–10 according to the product page); the Small Bridge and Medium Bridge setups create a tunnel to crawl through
  • Loopo Combo 9-in-1 — for older children (from 3 years according to the product page): alongside wall bars and an overhang, which are anchored to the wall, it also builds bridges that make a hideout underneath

What all Loopo Playsets share: untreated beech, modular expandability, and the idea that movement furniture should grow with your child rather than be replaced every two years.

→ Browse the full Loopo collection

A Note on Cardboard Boxes

If you’ve ever bought your child a present and watched them ignore it in favour of the box, you’re not alone. Cardboard keeps delighting children — because it’s rough, real and they can change it.

A wooden den doesn’t replace the cardboard box. It complements it. The Loopo Little House becomes the stable backbone — the thing that’s always there. The blankets, cushions and the occasional cardboard box are how your child makes it their own each day.

That, ultimately, is what place-making is about. Not a perfect product. A space your child can shape.

Two children playing in a Loopo Little House setup with a draped sheet

Frequently Asked Questions (FAQ)

Why does my child want to hide in small spaces? Wanting a small space of their own is one of the most commonly observed play patterns of childhood. In a fort, the child is in charge, light and sound are softened, and they can withdraw for a while. In most cases it’s perfectly normal play and nothing to worry about.

At what age does fort-building start? Even toddlers love crawling into small spaces or under the table. In the preschool years, blankets, cushions and chairs join in. The dens and hideouts of school-age children between roughly 5 and 12 are the best-studied. Every child moves at their own pace.

Is a permanent indoor playhouse better than a blanket fort? They serve slightly different purposes. The blanket fort is wonderfully creative and changes daily. A permanent playhouse gives the child somewhere to return to without starting from scratch — and it doesn’t wobble like a construction of chairs. Often the best answer is both: a fixed frame, and blankets the child uses to reshape it again and again.

How much space do I need for an indoor playhouse? For the House setup of the Loopo Little House, plan for about 107 × 60 cm of floor space at a height of 113 cm, and leave some free space around it. If you want to hang a swing inside (House with Swing), the setup must be anchored to the wall with the W1 wall bracket. For a homemade den, small and cosy beats big.

Can I move it between rooms? Yes. Modular setups like the Loopo Little House can be disassembled and rebuilt in another room; the whole set weighs about 18 kg. With House with Swing, the W1 wall bracket has to be fixed to the wall again in the new spot.

At what age does a child grow out of their den? That varies a lot. Many children keep building dens and hideouts well into their school years; research describes these places precisely for the years between roughly 5 and 12. With a modular setup, the same pieces rebuild into other setups — the product page recommends the Loopo Little House for children aged 2 to 10.

Can I leave my child to play alone in their den? According to the manufacturer, Loopo Playsets are for domestic use only and must be used only under the direct supervision of an adult — including when the den serves as a quiet retreat. Your child can withdraw into it while you stay nearby. The manual gives an age of 2 years and up for the House setup; a soft floor inside also makes the den cosier.

Sources

  • David Sobel: Children’s Special Places: Exploring the Role of Forts, Dens, and Bush Houses in Middle Childhood. Wayne State University Press, Detroit, 2002. Book description (Antioch University)
  • Maria Kylin: Children’s Dens. Children, Youth and Environments 13 (1), 2003, pp. 30–55. View article
  • Mary Ann Kirkby: Nature as Refuge in Children’s Environments. Children’s Environments Quarterly 6 (1), 1989, pp. 7–12. View article
  • Loopo online assembly manual: House, House with Swing, Small Pikler Triangle T2, Panther and Short Steady Bridge setups (age, load capacity, dimensions, wall mounting). View the manual
  • Product page Loopo Little House 5in1: recommended age, package contents, safety notice.
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