ᐅ How easy is it to modify Ikea Brimnes as a DIY base?

Hello everyone,

I am currently considering how simple or complex it actually is to use the Ikea Brimnes furniture piece as a base for a DIY project or to modify it accordingly. I am especially interested in ways to work the materials carefully without compromising load-bearing capacity or making assembly more difficult. It would also be helpful to know what typical challenges to expect during the conversion—such as cutting or integrating additional elements.

Does anyone have experience or tips on how well the Brimnes system works for custom shelving units, bed frame variations, or cabinet modifications? Which tools and techniques do you think are best suited to adapt the furniture to individual needs without much extra effort?

Thanks in advance for your insights!

The Brimnes is relatively easy to modify because the parts are mostly made of medium-density fiberboard (MDF). For cutting, I simply use a jigsaw with a fine blade, which holds up well on the edges. Plan the drill holes in advance; otherwise, the material tends to chip quickly. You don’t need to make major changes since the holes in the side panels are standardized, allowing you to easily add more shelves or replace hinges.

Lisale schrieb:
I am particularly interested in ways to work with the materials gently, without compromising load-bearing capacity or making assembly more difficult.

Basically, Brimnes is made from MDF panels coated with veneer — which makes modifications quite manageable, but you should be careful with moisture and excessive force so the panels don’t swell or break out. In my experience, especially for larger cutouts to create custom inserts, a router with a clean bit is the best choice. This allows for smooth edges while maintaining stability.

Lisale schrieb:
From your perspective, which tools and techniques are best suited to adapt the furniture to personal needs without much extra effort?

For shorter tasks, a jigsaw and cordless drill are usually sufficient. For finishing, I use edge banding or acrylic filler to protect the cut edges and keep the appearance neat. It’s important not to over-enlarge screw holes and to follow the furniture’s assembly instructions carefully, because Brimnes in particular has tight tolerances in its connection fittings, and otherwise you might encounter alignment issues.

My tip: For modifications where load capacity matters, it’s better to add small reinforcement elements made from wooden strips or metal brackets. This keeps the furniture system safe and stable.

SETHBLA schrieb:
Brimnes is relatively easy to modify because the parts are mostly made of medium-density fiberboard (MDF).

Interesting point, but that’s exactly the problem! MDF is very vulnerable if you don’t use the right techniques. Many people overestimate its durability and think they can just drill or saw without caution, but then the edges chip or the furniture quickly loses stability.

In my opinion, Brimnes is often praised as the ultimate DIY kit, but it’s really more of a compromise between affordable design and easy assembly, hardly suitable for heavy or complex modifications.

So you should really consider opting for a sturdier base if you want durable DIY furniture. The enthusiasm for “Ikea hacking” is strong, but not always justified, especially with Brimnes.