DIY: Hacking Ikea BESTA and NUMERAR for a fit to size built in.

Posted on September 19, 2010 
Filed Under Feature: DIY

Recently my place was featured on Apartment Therapy, and have been receiving a lot of requests for more information on my Ikea hacked floating desk/built-in. For more details on how it was built click below.

The Ikea Besta system does not offer filler panels, so creating a fit to size look requires some hacking of the Besta unit.


The raw edge of each cut cabinet goes against the wall.

My wall is 112 inches wide. I used two standard 47 inch cabinets and placed them in the center of each row. There was 9 inches of empty wall space on each side. To fill the space, I cut two 9 inch cabinets for each row. You will also need to cut the hanging track to fit the new size of the end cabinets.


 A. Door edge with iron on edge strips. B. Door edge before edge strips. C. Raw edge of custome cabinet does not need to be finished. It will be hidden against wall. 

You will need to cut the doors to the size of the custom cabinet. This will make the edge of the door unfinished, so use iron on melamine edge strips to give the door a finished look. You can get the edge strips online or at your local hardware store.


You will hang the custom cut cabinet using the standard hanging corners. Be sure to cut the hanging track to fit the inside of the new custom cabinet.


A. Custom cut hanging track. B. Standard hanging track. C. Custom cabinet mounts to track like standard cabinets.


A. Custom cut cabinet. B. Standard 47″ cabinet.

Once on the wall, you will not be able to tell that the cabinets were cut because the raw edges will be hidden.


A. Use Rakks wall brackets to mount desk to wall. Ikea Signum was used for the cable management under the desk.  B. Drill holes on each end with a hole drill bit and finish with a plastic grommet to allow your cables to come out.

The floating desk is just two Ikea NUMERÄR counter tops mounted to the wall using Rakks counter wall brackets.  Cut the counter tops to size and make sure the raw edges are against the walls. The Rakks brackets will make your desk strong enough to stand on if you mount them to studs or use Hilti Toggler Bolts.

Finished Product

Large painting is an original acrylic on canvas by Anton Stankowski. Smaller one is by Julije Knifer.



5 Responses to “DIY: Hacking Ikea BESTA and NUMERAR for a fit to size built in.”

  1. verve on September 19th, 2010 2:36 pm

    Looks lovely that does . . . nice work

  2. poppasmurf on September 19th, 2010 6:55 pm

    Neat, I like my eames. Looks like the kind of place I would buy.

  3. fabiomassimo on September 20th, 2010 3:14 am

    Another of your “before/after” jobs, I think you would do magic as an achitect :)

  4. G-sus on September 23rd, 2010 8:34 am

    Ye very nice G.

  5. Ben Bridges on September 27th, 2010 3:24 pm

    Nice work!

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