ᐅ Kallax nails are pushing through the back panel – any solutions?

Hello everyone,

I have an issue with my Kallax shelf where the nails used to fix the back panel start to push through the thin back panel after some time. This not only looks untidy but can also cause the back panel to come loose or not fit properly in the worst case.

I’m interested in any solutions you know of or have tried yourselves. In particular, I’d appreciate tips on how to secure the back panel well without having to buy a completely new one or do extensive modifications. What can be done if the nails work their way through the thin material? Are there alternative fasteners or helpful tricks to prevent the nails from pushing through?

Thanks in advance for your experiences and suggestions!

Hey gordonma, great topic! 🙂

It’s fantastic that you’re looking into the Kallax issue in such detail! I’ve experienced the same problem myself, and what helped me was not only nailing the back panel but also securing it with small screws. This way, the pressure is distributed better, and the back panel stays firmly in place.

Additionally, you can place very thin felt or plastic pads between the nail and the back panel, which significantly cushions the pressure!

Don’t give up, the problem can be solved – and if you like, I can share more tips on how to upgrade your shelf! :-)

nedagla schrieb:
I’ve experienced the same myself; it helped me to secure the back panel not only with nails but also with small screws.

That’s a good idea.

Additionally, I recommend using a sturdier back panel made of plywood or MDF instead of the standard thin particleboard. Although this is slightly more expensive, it provides significantly greater stability and prevents nails from pushing through. It also allows for better fastening with small screws or corner brackets.

Alternatively, a thin plywood sheet can be mounted on the back of the shelving unit, which also helps to distribute nail pressure more evenly.

I would recommend:

- Attaching the back panel with staples instead of nails
- Screwing thin wooden battens behind the back panel for increased stability
- Possibly securing the back panel with double-sided tape

Cost-effective and efficient.

gordonma schrieb:
This not only results in an untidy appearance but can also cause the back panel to come loose entirely or no longer fit properly in the worst case.

In my opinion, this is where the core of the problem lies: the thin back panel is not designed to withstand the high stress from nail pressure. The fundamental issue arises from a combination of material thickness and the fasteners used.

Perhaps we should broaden the question: is the Kallax system generally undersized regarding the back panel fixation, or is the fault due to incorrect assembly by the user?

Was the back panel already slightly damaged or damp beforehand? Because damp particleboard loses significant stability.

A long-term solution might also involve using alternative fastening methods such as concealed screws or special corner connectors to reduce the load on the back panel.

So far, I see mostly symptomatic solutions in this discussion rather than addressing the root cause sustainably.

BAUEVA schrieb:
Perhaps we should broaden the question: Is the Kallax system generally undersized regarding the back panel attachment, or is the fault in the user's assembly?

Hey, that’s an interesting perspective! In my opinion, even if the back panel is a bit too thin, you can fix that with a little creativity.

I simply flipped the back panel on my Kallax and reinforced it from the front with thin boards, creating a kind of sandwich effect. It was quick to do and now looks pretty cool 😉

Sometimes it helps to have some fun with it and upcycle the furniture a bit instead of getting frustrated about the nail pressure. A little DIY is allowed, right? ;-)