ᐅ Kallax shelves crack under load – has anyone ever filed a complaint?

Hello everyone,

About three months ago, I bought a Kallax shelf from IKEA and noticed that some of the shelves cracked quite easily under relatively moderate load—nothing excessive, just everyday use with some books and decorative items.

I’m curious if any of you have had similar experiences with this specific issue of shelves cracking under load?

If so, how did you handle the warranty claim? Did IKEA replace them without any problems? Are there any particular tips for assembly or use that could help reduce the risk?

I would appreciate any concrete experiences and advice, as I would like to avoid this happening to the remaining shelves as well.

sauken schrieb:
actually shattered under comparatively moderate load

Oh no, that really sounds frustrating! Especially when you expect a shelf to hold up well.

I haven’t had any issues with Kallax myself, but I always made sure not to overload the shelves permanently – particularly since particleboard tends to be more sensitive to excessive moisture or pressure. Maybe you got a defective piece?

If you filed a complaint, I hope IKEA was accommodating – feel free to share your experience 🙂

sauken schrieb:
How did you handle the complaint? Did IKEA replace the item without any issues?

Hello sauken,

to approach the topic a bit more technically: Kallax shelves are made from furniture boards with a melamine resin coating and typically have a thickness of about 12–15 mm (0.5–0.6 inches). This means they are fairly stable but not designed for heavy distributed loads or extremely high point loads.

Breaking under normal use usually indicates a material defect or the presence of microcracks that have propagated due to stress.

For complaints, I always recommend having the original receipt and photos of the damage ready. IKEA is generally accommodating with returns, but response times can vary. Important: When complaining about furniture made from chipboard, it’s better to act quickly—the longer you wait, the harder it becomes to find a solution.

Also interesting: pay attention to the maximum load capacity specified by IKEA in the instructions, as well as the correct assembly of the shelves—stability often depends on whether all fasteners are properly secured.

I would like to add to giabau’s technical objection:

A common cause of failure with Kallax shelves is improper handling during assembly. For example, if the shelves are bent too forcefully or clamped at an angle, and the support slats do not sit flush along their entire length, stress can build up. This can cause minor damage such as hairline cracks that may later lead to breakage.

Another point: unevenly distributed loads, especially point loads like a heavy object placed on a small area, significantly increase the risk of breaking.

If you have filed a complaint, it would be helpful to know whether IKEA investigated the causes and if they offered a replacement.

Ideally, they would exchange the damaged shelf or provide a refund.

giabau schrieb:
Cracking during normal use usually indicates a material defect or the presence of microcracks

That’s exactly my suspicion – I also consciously avoided filling the shelf with heavy items, assuming it was made for things like binders and decorations. The cracks didn’t appear immediately but developed over time.

jelite schrieb:
If the shelves are, for example, bent too sharply or wedged in at an angle

I was very careful about that during assembly because I’d seen similar issues with other shelves before. All mounting angles were correct, all screws properly installed, and the whole unit assembled on a level surface. So I tend to think it was a manufacturing defect.

I discussed the damage with Ikea once but haven’t officially filed a complaint yet – I wonder if I might end up covering the costs myself because I didn’t approach the retailer immediately with proof? Of course, I still have the purchase documents.

I can fully understand how frustrating this is – even when you do everything correctly and still encounter problems.

My advice: Be sure to report the damage to IKEA in writing. Even if there is a chance they initially reject the claim, this is the proper way to preserve your legal rights if needed.

In my experience, many manufacturing defects, especially with particleboard furniture, are quite common. However, without a formal complaint, you have no right to repair or replacement. In Germany, this can be legally enforced if you have the receipt and can prove normal use.

Make sure to record the date precisely and, ideally, take detailed notes of your conversation or contact with IKEA.