Published on April 6th, 2013 | by Jules Yap


Billy walk-in room divider (psst… it’s a secret room)

Door to room opened, taken from inside the room
Door closed, taken from outside the room (living room)

Materials: 3 40cm-wide Billy bookshelves with doors, IKEA cloth

Description: We needed to create a room for our child, and decided to build it with Billys, rather than create an actual wall. So we chose to use two Billys as a wall, with one in the the middle working as a real door.


- Place two 40cm wide Billy bookshelves (or more if needed) and leave room in between. N.B. Use wide Billys to obtain a firmer structure.
- From the third Billy only take the two side and top element.
- Screw the sides to the other bookshelves through the existing holes. Take care not to use the holes needed for the door.

- Add the top element and check the structure is firm.
- Then, take a 4mm plywood sheet, and shape it to fit the upper room opening. Screw it to the wall and ceiling by means of steel L-shaped elements.
- Use plaster and paint to join the wall and the plywood sheet, which will eventually look as a normal wall.
- Add the doors to the centre Billy, then cut some IKEA cloth of your choice to cover the back of the lateral bookshelves. Staple it to them.
- For covering door windows, cut some cardboard and cloth, staple the cloth to the cardboard and glue them to the window.
- Let your child enjoy his/her secret room!

~ PU

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The Author

Jules Yap

"I am Jules, the engine behind IKEAHackers and the one who keeps this site up and running. My mission is to capture all the wonderful, inspiring, clever hacks and ideas for our much loved IKEA items".

15 Responses to Billy walk-in room divider (psst… it’s a secret room)

  1. Remmie says:

    I see, you mean 40 cm deep and 80 cm wide then.

  2. PU says:

    Each shelf is 80 cm x 40 cm x ~210 cm. They’re the thicker ones!

  3. Anonymous says:

    This is so cool, but I have to admit, my first thought was ‘A firefighter would never know to look there for a child!’

  4. Remmie says:

    These look more like the 80 cm wide Billys, not the 40 cm, amirite?

  5. Anonymous says:

    Great on so many levels. I nominate for consideration for hack of the year!

  6. Mari says:

    Very clever! I like! However I guess it can’t be too secret as there is space under the door.

  7. Alexis Marlons says:

    This is one such great idea. I always get amazed with secret rooms and having a secret room is such a very interesting idea.

  8. Best idea seen in awhile. Great Job!

  9. Great idea! I used to have an apartment with a space like that. I wish I had been as creative in blocking it off.

  10. Zulaya says:

    Seriously cool. I don’t dare let my kid see this or I’ll never hear the end of it.

  11. Jenny says:

    Awesome new bedroom, don’t forget to hang a smoke detector. :)

  12. Konsumjunkie says:

    Wow, that’s really cool. So much work!!!

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