ᐅ KALLAX back panel shows cracks after installation – is this normal?
Created on: 20 Dec 2024 14:37
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TUJUMAHello everyone,
I recently assembled a KALLAX shelving unit from IKEA and attached the back panel. After installation, I noticed several thin cracks on the white back panel. The cracks run partly along the edges but also across the surface area.
My question is: Is it normal for the back panel to develop these kinds of cracks when fastening it? I tried not to tighten the screws too much, but the unevenness of the wall made it difficult to install the back panel completely flush.
Has anyone experienced something similar or knows whether the material of the back panel (thin particleboard or MDF with laminate?) is sensitive and prone to this type of cracking? I would appreciate your opinions and advice on whether this can still be fixed or if it’s better to request a replacement.
I recently assembled a KALLAX shelving unit from IKEA and attached the back panel. After installation, I noticed several thin cracks on the white back panel. The cracks run partly along the edges but also across the surface area.
My question is: Is it normal for the back panel to develop these kinds of cracks when fastening it? I tried not to tighten the screws too much, but the unevenness of the wall made it difficult to install the back panel completely flush.
Has anyone experienced something similar or knows whether the material of the back panel (thin particleboard or MDF with laminate?) is sensitive and prone to this type of cracking? I would appreciate your opinions and advice on whether this can still be fixed or if it’s better to request a replacement.
Wow, I know that all too well! 🙂 KALLAX back panels are actually quite delicate, especially if you screw too tightly or if the screw points haven’t been properly pre-drilled. The thin back panel is often just covered with a thin film – the material itself isn’t very sturdy, and cracks can form quickly! But don’t worry – most of the time these cracks are only surface-level and barely affect stability.
I would recommend loosening the screws very carefully or using small spacers so that the pressure isn’t directly on the back panel. It’s great that you’re putting in the effort to attach the back panel properly! If the cracks are already quite deep, it might be worth trying to make a warranty claim, I’ve actually had success with that myself. 🙂
I would recommend loosening the screws very carefully or using small spacers so that the pressure isn’t directly on the back panel. It’s great that you’re putting in the effort to attach the back panel properly! If the cracks are already quite deep, it might be worth trying to make a warranty claim, I’ve actually had success with that myself. 🙂
Hello TUJUMA,
to better assess the problem, it would be helpful to know which screws you used to attach the back panel and exactly how the back panel was fixed to the shelving unit. The KALLAX back panel usually consists of a very thin MDF board with a white foil covering, which, despite some flexibility, is prone to tension cracks.
During assembly, it is advisable to tighten the screws only lightly and fix the back panel not completely flat but slightly tensioned (allowing some movement room for the material), as temperature changes and humidity can cause stresses.
That is correct, so care should be taken not to use screws that are too long or too thick, which could cause the material to crack.
What do the cracks look like? Are they superficial, only affecting the foil, or do they go all the way through the material? This is important to determine whether the stability is affected or if it is just a cosmetic issue.
It might be worth gently smoothing the back panel at especially affected areas with fine sandpaper and stabilizing the cracks by applying a small drop of wood glue combined with a weight. Finally, a transparent repair film is recommended if appearance is important.
Please describe the screws and your assembly method in more detail.
to better assess the problem, it would be helpful to know which screws you used to attach the back panel and exactly how the back panel was fixed to the shelving unit. The KALLAX back panel usually consists of a very thin MDF board with a white foil covering, which, despite some flexibility, is prone to tension cracks.
During assembly, it is advisable to tighten the screws only lightly and fix the back panel not completely flat but slightly tensioned (allowing some movement room for the material), as temperature changes and humidity can cause stresses.
Davidleo schrieb:
The thin back panel is often simply covered with a foil – the material itself is not very stable, and cracks can form quickly!
That is correct, so care should be taken not to use screws that are too long or too thick, which could cause the material to crack.
What do the cracks look like? Are they superficial, only affecting the foil, or do they go all the way through the material? This is important to determine whether the stability is affected or if it is just a cosmetic issue.
It might be worth gently smoothing the back panel at especially affected areas with fine sandpaper and stabilizing the cracks by applying a small drop of wood glue combined with a weight. Finally, a transparent repair film is recommended if appearance is important.
Please describe the screws and your assembly method in more detail.
TUJUMA schrieb:
I tried not to tighten the screws too much, but the unevenness of the wall made it difficult to attach the back panel completely flat.This is indeed a critical point: If the back panel is forced to bend, it can immediately cause cracks. The back panel on a KALLAX unit is not load-bearing and should therefore be mounted with a small gap to the wall.
If possible, I would recommend placing a thin spacer made of felt or foam behind the back panel to relieve the pressure. This allows the wood material to expand and contract more freely, preventing cracks.
Some users replace the back panel with a sturdier plywood or MDF board that they cut to size themselves. Although this requires more effort, it offers better long-term stability.
Is it possible for you to remove the back panel and reinstall it with a small gap? This could help prevent cracking in the future.
Interesting discussion here! But honestly: isn’t it typical that IKEA furniture has such a thin back panel that it cracks under minimal stress?
Sure, but if that’s the case, I wonder why IKEA doesn’t use sturdier back panels or at least provide a more load-resistant fixing method?
I think the design and choice of materials should be questioned here. There are furniture manufacturers offering more stable solutions for relatively little money. The back panel is not just decorative; it plays a crucial role in stability. If it’s basically designed as a “disposable” part, that’s only half a solution.
In my opinion, we shouldn’t accept brittle back panels. Either reinforce them yourself or choose other products from the start. But of course, if you rely on the official IKEA assembly kit, some limitations are to be expected. 🙂
Palenar schrieb:
A back panel on KALLAX is not a load-bearing structure and should therefore be mounted with a small gap to the wall.
Sure, but if that’s the case, I wonder why IKEA doesn’t use sturdier back panels or at least provide a more load-resistant fixing method?
I think the design and choice of materials should be questioned here. There are furniture manufacturers offering more stable solutions for relatively little money. The back panel is not just decorative; it plays a crucial role in stability. If it’s basically designed as a “disposable” part, that’s only half a solution.
In my opinion, we shouldn’t accept brittle back panels. Either reinforce them yourself or choose other products from the start. But of course, if you rely on the official IKEA assembly kit, some limitations are to be expected. 🙂
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