ᐅ KALLAX screws stripped after self-assembly – what now?

Hello everyone,

I recently assembled a KALLAX shelf myself, but I am already facing some significant issues: several screws, especially on the back panel and at the connections of the shelves, have stripped the wood. This means that when I try to tighten them again, they just spin without any firm resistance.

Now I’m wondering: what is the best way to fix this without having to completely disassemble the shelf or drill new holes? Are there special types of screws, or could different materials (such as wood glue, dowels, or similar) be used to reinforce the damaged areas? What are your experiences with this common problem after self-assembling a KALLAX, and how have you solved it?

I want to keep using the shelf without it becoming unstable and would appreciate any tips or alternative solutions!

nato55 schrieb:
Some screws ... have completely stripped the wood.

Hello nato55,

The problem with stripped screws in KALLAX shelves is actually quite common, especially if they are removed and reinserted multiple times or overtightened. Since the material is usually made of particleboard, it doesn’t provide optimal holding power for regular screws after repeated use.

A proven method is to fill the screw holes with wood glue and then add small wood shavings or toothpick pieces. This fills the hole, which you let dry thoroughly before carefully reinserting the screw. This preserves the stability and avoids making new holes.

Alternatively, you can use wooden dowels or wood screws with a larger diameter. These offer stronger grip without damaging the board.

If the screws spin freely, a bit of superglue on the screw can also help – but be careful, as this makes removing the screws later difficult.

I hope this gives you a good starting point. If you want, I can explain the individual methods in more detail! 🙂

Oh yes, I know that problem all too well! After a few months, my KALLAX also had screws that became completely worn out – it can be really frustrating!

PeoDaniel schrieb:
Fill the screw holes with wood glue and then with small wood chips or pieces of toothpicks.

That’s a great tip, I tried it myself and it holds really firmly!

What I can also recommend is simply replacing the screws with a slightly larger size; they grip better that way. Or if you have some basic woodworking tools, try using hardwood plugs. They are really great because you can glue them in securely and the fix lasts permanently.

So, don’t get discouraged – it will be stable again! Good luck 🙂

nato55 schrieb:
Are there specific types of screws, or could damaged areas be somehow reinforced using different materials?

I often wonder if the whole "do-it-yourself assembly" idea already contains the problem at its core. KALLAX is designed for simple screw connections, which will eventually fail under relentless overuse.

Why not skip screws altogether and instead use metal brackets or additional reinforcements?

Otherwise, the whole "filling with toothpicks" approach seems like a makeshift fix that will probably only last a short time. Better to properly drill out the holes, use larger screws and new anchors – or design for stability from the start.

Just my two cents, because I often think these constant repair jobs on IKEA furniture show that the design is not intended for long-term heavy use.

For additional information: KALLAX shelves typically have a basic structure made from medium-density fiberboard or particleboard, which are known to have limited tensile strength and poor screw holding capacity.

The most effective practical methods to fix stripped screw holes are:

1. Apply wood glue along with wooden dowels (e.g., toothpicks or additional wood shavings) until the hole is completely filled and dry—this restores the screw’s grip.

2. Use larger wood screws that engage deeper and more securely.

3. Allowing the wood glue to cure for a longer time can further increase strength.

4. Alternatively, special repair kits for furniture screws that include dowels with plastic sleeves can be inserted.

5. Metal brackets or additional reinforcements enhance mechanical stability and prevent repeated stress on the screws.

Each method has pros and cons depending on available time, tools, and desired durability. It is important to perform the chosen method carefully and allow sufficient drying time.