ᐅ Why do some Malm drawers warp or become misaligned after several years?

Hello everyone,

I have a question that has been on my mind for a while: why do some Malm drawers warp after several years?

I am specifically referring to the IKEA Malm bed or chest of drawers, where after some time the drawers tend to warp slightly, stick, or no longer slide smoothly. I can imagine there are several possible causes, such as material deformation, moisture, or maybe mechanical issues with the drawer slides.

I am interested to know if anyone has more detailed experience or even technical explanations as to why this happens more often with these pieces of furniture.

Thanks in advance for your input!

This is usually caused by moisture and temperature fluctuations.

MDF boards swell when they absorb moisture, which causes them to change shape.

Another factor is low-quality or worn-out guides, which no longer fit properly.

There are several factors to consider regarding the warping of Malm drawers after years of use. First of all, the materials used are crucial: these dressers are mainly made from engineered wood products such as MDF or particleboard, which have hygroscopic properties. This means they absorb moisture from the air and release it again, causing expansion or contraction depending on the ambient humidity.

An important factor is the specific installation and living environment. In rooms with high humidity, for example due to cooking without ventilation or poor air circulation, the wood reacts more strongly. Since the drawer fronts often rest on the frame and are made of relatively thin panels, these deformations occur with some delay, making the effect particularly noticeable.

Furthermore, the quality of the rail and slide systems also plays a role. The Malm system uses simple and relatively lightweight metal components; with frequent use, wear can cause slight changes in the guidance, which manifests as warping or sticking of the drawer.

In summary, it is an interplay of moisture exposure, material characteristics, and mechanical wear that leads to these issues over time. However, I can provide more technical details if anyone is familiar with the drawer system or assembly.

I agree with the previous speaker but would like to take a closer look at the structural characteristics and their consequences.

Johnathon schrieb:
The materials used are crucial: MDF or particleboard have hygroscopic properties

Exactly, MDF is inexpensive but highly sensitive to indoor humidity, which leads to plastic deformation. Especially critical in Malm furniture is the thin back panel and the low thickness of the drawer bottoms.

kufi63 schrieb:
The MDF panels swell when they absorb moisture, changing their shape.

Typically, the drawer bottom can bend slightly, causing the front to appear crooked, which is perceived visually as "warping."

The drawer slides are often simple roller or ball bearing guides that develop play over the years of use and no longer allow the drawer to run precisely.

Furthermore: What about the assembly quality? Are the drawers always installed cleanly and square? Even minimal misalignment during installation can be worsened by deformation.

In other words, the aging of the material combined with mechanical play and assembly errors results in the well-known problem.

Thank you for the very helpful explanations so far!

One more question: In your opinion, how significant is the impact of humidity if the piece of furniture is placed in a heated bedroom where the humidity is still relatively normal? Is it reasonable to expect that the drawers might start to warp after 5–10 years?

Are there any preventive measures that could help avoid this or at least slow it down?

I have often seen this type of furniture at friends’ or family members’ homes where it hasn't been a problem, even though the furniture is the same age.

Even in standard bedrooms, wood-based panels can warp. Humidity levels often fluctuate.

This can be prevented through good ventilation and maintaining a consistent room temperature as much as possible.

It also helps not to overload the drawers and to regularly check if they still open and close smoothly.