ᐅ How can I convert Ikea BESTA into a bench with built-in storage?

Hello everyone,

I am considering converting my Ikea Besta shelving system into a multifunctional bench with built-in storage. The idea is to modify the existing modules so that you can sit on them comfortably, ideally with a padded seat, while also using the interior of the BESTA cabinets as storage space.

My goal is to make the whole setup as stable and visually appealing as possible. Additionally, the seating surface should be removable or at least accessible so that the storage space can be used easily. I have read about some people who have taken on this conversion as a DIY project, but detailed instructions or tips are often missing.

How can I best modify the BESTA system if I want to:
- Ensure stability (since the system was not originally designed as a bench)
- Integrate a comfortable seating surface (foam, cushions, covers)
- Have storage that is as unobtrusive as possible, accessible through flaps or removable lids

Are there recommended materials, fastening methods, or best practices for a project like this? I would really appreciate any experiences or advice you can share, even if you haven’t used this exact system but have worked on similar ideas.

Thanks in advance!

Hello IXJEPEO,

I find your project very exciting and would like to point out some important aspects that could help you with your BESTA conversion.

First, regarding stability: As you correctly mentioned, the BESTA system is not designed for sitting. This means you should firmly connect the modules together. It’s best to use additional angle brackets or even a wooden board as a base, which you can screw under the modules to prevent sagging. Make sure the feet of the BESTA units are stable, and consider using floor leveling screws if needed.

Second, the seating surface. I recommend a sturdy wooden board that you size appropriately and cover on top with foam (seat cushion) and a durable, wipeable fabric. You can make the seating surface removable using Velcro strips or strong magnets. It’s also important that the board does not sag.

Third, accessibility: For flaps or lids, you can use butterfly hinges or even gas springs to make them easy to open while keeping them securely closed. Another option is to design the seat as a hinged lid.

I hope this helps you so far. If you want, I can also share my experience with similar furniture modifications. Good luck with your project!

Hello IXJEPEO,

I have carefully reviewed your plan and would like to address the technical details more thoroughly, as there are many aspects to consider in a renovation like this to build a truly durable and safe bench seat from IKEA BESTA units.

First, regarding load capacity: The BESTA carcasses are made of particleboard, which is not originally designed to bear seating loads. Therefore, I strongly recommend reinforcing the insides of the carcasses with additional bracing made from multiplex plywood or beech wood. Ideally, attach these using brackets and screws. Be especially careful not to place screws too close to the edges to avoid splitting.

Next, a word about connecting multiple modules: If you want to place several BESTA carcasses side by side, you will need additional metal connectors to permanently join the modules, otherwise shifting may occur when someone sits on the bench.

For the seating surface, I suggest an 18mm (3/4 inch) thick multiplex plywood panel, which you can cover with upholstery foam (at least 4cm (1.5 inches) thick) and a durable covering fabric. Make sure to use water-resistant materials to increase longevity.

To allow access to the storage space, a hinged mechanism is recommended, such as piano hinges or gas springs, which both make opening easier and ensure the lid does not close unexpectedly.

One more important tip: Screws and connecting fittings should be of high quality because load distribution in seating furniture is complex. If possible, also use dowels to improve stability.

Finally, a question: How large do you intend the bench to be approximately, and how many modules do you want to connect? This will ultimately affect the required reinforcements.

Brief Tips:
- Securely connect BESTA modules with brackets and screws.
- Create seating surfaces on plywood panels, covered with foam.
- Attach flaps using sturdy hinges.
- Level the legs to ensure stability.

That’s enough for now.

FAZAR schrieb:
Screws and connectors should be of high quality because the load distribution in seating furniture is complex.

That is absolutely correct. I’d like to add a step-by-step suggestion for your BESTA conversion:

- Step 1: Plan the layout of the bench, deciding how many BESTA units you want to place side by side and stacked vertically.

- Step 2: Obtain a plywood panel of the appropriate size for the seat surface.

- Step 3: Reinforce the inner sides of the BESTA cabinets with additional wooden battens attached and securely screwed inside.

- Step 4: Connect the individual modules from the inside using metal brackets and screws, ensuring they stand firmly and level on the floor.

- Step 5: Cut foam and upholstery fabric for the seat surface, then glue or staple them onto the wooden panel.

- Step 6: Secure the seat surface with strong magnets or a simple hinge mechanism to keep the storage area easily accessible.

Finally, I recommend regularly checking the stability and retightening connections if necessary.

If you like, I can assist you further in planning the right materials and techniques.