ᐅ Kallax Saved After Flood – Still Structurally Sound?

Created on: 18 Nov 2021 08:17
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nikreo
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nikreo
18 Nov 2021 08:17
Hello everyone,

I recently saved my Kallax shelf after the flooding, and it is now in my living room, dry, but I’m worried whether the shelf is still stable enough after being exposed to moisture and water.

The shelf is made of standard particleboard with a melamine-coated surface. The water stood on my floor for about 2 to 3 hours and partially submerged the lower Kallax units. After drying, everything looks fine on the outside, but I’m concerned that the load-bearing capacity or the joints, especially the glued connections, may have been compromised by the water.

Has anyone had similar experiences or can offer advice on how to check or restore stability? Is it enough if the boards absorb some moisture and then shrink back a bit, or are such damages usually permanent? Thanks in advance for your feedback!
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minan
18 Nov 2021 09:03
Hello nikreo,

I am familiar with this issue, as I have previously had to assess furniture after water damage. The main risk with Kallax shelves—and with particleboard furniture covered in melamine laminate in general—is that the particleboard will permanently warp or swell once it has absorbed water. This process is usually not immediately visible after drying but often only becomes apparent weeks later as warping or instability.

First, it is important to carefully check whether the joints (usually fixed with dowels and glue or screws) are still tight. If the parts loosen with slight wobbling or under load, this indicates damage.

I also recommend gently testing the shelf by placing a 5-10 kg (11-22 lbs) weight on one of the compartments and then observing whether the shelf board bends significantly downward or creaks.

Can you see if the particleboard at the bottom edges is swollen or damaged? Some people use moisture meters to measure residual moisture in the board, which can help to better assess the drying progress.

Feel free to share more details, such as the age of the shelf and how heavily it is loaded. That can help provide a more precise evaluation. Until then, handle the shelf carefully and avoid placing heavy objects on it.
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GAGRAHAM
18 Nov 2021 09:56
Oh wow, that’s a really interesting question! 🙂

I think it’s great that you’re already thinking about this, nikreo! Checking the stability of furniture after such stress is extremely important!

I had a similar situation with my Billy shelf from IKEA after a water damage incident in the corner. What helped me was simply leaving the shelf alone to dry completely and then testing its load-bearing capacity again after a few days. Fortunately, it held up for me, but I also started to avoid placing heavy items on the lower shelf because I wasn’t sure about the water exposure. Additionally, it helped to slightly raise the legs of the shelf so it didn’t sit directly on the floor, which prevented it from absorbing more moisture.

I definitely hope your Kallax stays stable! 🙂
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Jaime
18 Nov 2021 10:26
Hello nikreo,

In general, it can be said that Kallax shelves, despite being made of simple materials, have quite sturdy construction, but water is their weakness. The particle boards swell significantly and permanently lose strength due to moisture, especially at the joints where the glue is applied.
minan schrieb:
The important thing is first to carefully check whether the connections (usually fastened with dowels and glue or screws) are still tight.

That is exactly the point. If you still notice some movement in the components after drying, I would consider the stability compromised.

My tip: If the appearance is still acceptable, you can reinforce the joints again with wood glue. Press the glue into visible gaps and clamp the parts firmly together until it dries. This often significantly improves durability, even if the material has been damaged by moisture.
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besau
18 Nov 2021 10:41
Simply test: apply weight to the lower compartments and check if it creaks or wobbles. If it does, remove the shelf.
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ANMARCOS
18 Nov 2021 11:10
I always wonder why people get so attached to cheap furniture and try to save it. Particleboard and water? That’s like fire and gasoline. It’s better to get a proper solid wood shelf, which can even handle occasional exposure to water.
GAGRAHAM schrieb:
I had a similar case with my Billy shelf from Ikea after water damage

Billy is basically the equivalent of Kallax, so it’s not meant to last forever either. So why get upset about stability? These are all designed from the start for temporary use only.