I have the following problem and wonder: Why do dowels come loose in Malm dressers?
In my case, after some time, the dowels used to connect the shelves and side panels partially loosen or even fall out completely. The construction seems solid, and I have not observed any excessive loads. Still, the dowels “move,” creating an unstable condition at the joints.
I suspect it has something to do with the material properties of Malm dressers, possibly the particleboard or the types of dowels used. Mechanical stresses or material swelling might also play a role.
I am interested in the specific causes that can lead to dowel issues particularly with this type of furniture. Are there common weak points in the design? Are the dowels often incorrectly sized or installed? What can users or manufacturers do to prevent this?
In my case, after some time, the dowels used to connect the shelves and side panels partially loosen or even fall out completely. The construction seems solid, and I have not observed any excessive loads. Still, the dowels “move,” creating an unstable condition at the joints.
I suspect it has something to do with the material properties of Malm dressers, possibly the particleboard or the types of dowels used. Mechanical stresses or material swelling might also play a role.
I am interested in the specific causes that can lead to dowel issues particularly with this type of furniture. Are there common weak points in the design? Are the dowels often incorrectly sized or installed? What can users or manufacturers do to prevent this?
Hello Juon34,
Your question is very interesting and touches on some fundamental aspects of joint technology and material science in IKEA furniture like the Malm dresser. Basically, dowels in such furniture can come loose for several reasons:
1. Material quality: Malm dressers are made of particleboard or MDF, meaning they consist of small wood particles bonded under pressure. This material has lower strength against tensile and shear forces than solid wood. Dowels fitted into such boards have less grip since they lack a fibrous structure to hold onto.
2. Swelling/shrinkage: Wood-based materials react to moisture. When the board expands or contracts, relative movements occur at the joints. Because dowels are rigid and fit quite precisely, this naturally leads to loosening.
3. Assembly and tolerances: Although series manufacturing usually ensures high precision, small deviations when inserting dowels can cause imperfect fits. Incorrect insertion depth or slightly damaged drill holes cannot compensate for this.
4. Load during use: Even if the furniture is not heavily loaded, everyday movements (opening and closing drawers, minor impacts) cause slight wobbling that accumulates over time.
Regarding your question: In the specific case of Malm, it is often the combination of particleboard with a relatively coarse material structure and rather short dowels. These can expand or contract over time – the forces within the wood-based material are not constant.
Yes, typical weak points are located at the main joints with vertical side panels where loads are mainly transferred. Corners and spots with frequent load changes (such as drawer runners) are also vulnerable.
Additionally, I recommend checking the assembly instructions carefully to ensure all screws and clips are properly installed – sometimes these are overlooked, so the dowels carry the entire load alone.
I hope this helps you! Are there specific areas in your furniture where the dowels are particularly affected? Perhaps I can then give more targeted advice.
Your question is very interesting and touches on some fundamental aspects of joint technology and material science in IKEA furniture like the Malm dresser. Basically, dowels in such furniture can come loose for several reasons:
1. Material quality: Malm dressers are made of particleboard or MDF, meaning they consist of small wood particles bonded under pressure. This material has lower strength against tensile and shear forces than solid wood. Dowels fitted into such boards have less grip since they lack a fibrous structure to hold onto.
2. Swelling/shrinkage: Wood-based materials react to moisture. When the board expands or contracts, relative movements occur at the joints. Because dowels are rigid and fit quite precisely, this naturally leads to loosening.
3. Assembly and tolerances: Although series manufacturing usually ensures high precision, small deviations when inserting dowels can cause imperfect fits. Incorrect insertion depth or slightly damaged drill holes cannot compensate for this.
4. Load during use: Even if the furniture is not heavily loaded, everyday movements (opening and closing drawers, minor impacts) cause slight wobbling that accumulates over time.
Juon34 schrieb:
I am interested in the specific causes that can lead dowels to cause such problems, especially in this type of furniture.
Regarding your question: In the specific case of Malm, it is often the combination of particleboard with a relatively coarse material structure and rather short dowels. These can expand or contract over time – the forces within the wood-based material are not constant.
Juon34 schrieb:
Are there typical weak points in the design?
Yes, typical weak points are located at the main joints with vertical side panels where loads are mainly transferred. Corners and spots with frequent load changes (such as drawer runners) are also vulnerable.
Additionally, I recommend checking the assembly instructions carefully to ensure all screws and clips are properly installed – sometimes these are overlooked, so the dowels carry the entire load alone.
I hope this helps you! Are there specific areas in your furniture where the dowels are particularly affected? Perhaps I can then give more targeted advice.
In short: Dowels lose their grip because chipboard expands and contracts. It swells with moisture and then shrinks again. As a result, the dowels do not hold firmly.
Unlike solid wood, they do not provide a permanent hold.
In practice, the only solutions are to retighten, possibly add screws, or choose better connection methods.
Unlike solid wood, they do not provide a permanent hold.
In practice, the only solutions are to retighten, possibly add screws, or choose better connection methods.
Hello Juon34 and everyone,
I would like to add some further explanation on why the dowels in Malm dressers tend to come loose, from a basic technical perspective.
Malm dressers are mostly made from engineered wood products such as particleboard, as already mentioned. These materials have a certain sensitivity to changes in moisture levels due to their structure. As a result, the dimensions can change slightly, causing the joint points, meaning the dowel holes, to expand or contract.
Additionally, the forces on the dowels in Malm dressers often include not only tension or compression but also lateral forces, for example when a drawer or cabinet compartment is loaded while open. Such side forces can cause the joints to twist or shift, which negatively affects the dowels’ grip.
Installation is also important. If the dowels are not pressed in straight or at the correct angle, stability can decrease quickly. Sometimes the dowels themselves are made from plastic or simple wood, which may not always provide the necessary friction and strength.
My recommendations for anyone experiencing this issue:
- Check whether the dowel holes have been enlarged by oversized drilling or damaged material.
- Applying wood glue into the dowel holes before assembly improves the hold.
- Supplement the joint with screws or brackets if possible, to better distribute the load.
I hope this information helps and encourages you to investigate the cause more closely yourself.
I would like to add some further explanation on why the dowels in Malm dressers tend to come loose, from a basic technical perspective.
Malm dressers are mostly made from engineered wood products such as particleboard, as already mentioned. These materials have a certain sensitivity to changes in moisture levels due to their structure. As a result, the dimensions can change slightly, causing the joint points, meaning the dowel holes, to expand or contract.
Additionally, the forces on the dowels in Malm dressers often include not only tension or compression but also lateral forces, for example when a drawer or cabinet compartment is loaded while open. Such side forces can cause the joints to twist or shift, which negatively affects the dowels’ grip.
Installation is also important. If the dowels are not pressed in straight or at the correct angle, stability can decrease quickly. Sometimes the dowels themselves are made from plastic or simple wood, which may not always provide the necessary friction and strength.
My recommendations for anyone experiencing this issue:
- Check whether the dowel holes have been enlarged by oversized drilling or damaged material.
- Applying wood glue into the dowel holes before assembly improves the hold.
- Supplement the joint with screws or brackets if possible, to better distribute the load.
benonon schrieb:This is certainly the main reason.
Material quality: Malm dressers are made from particleboard or MDF.
I hope this information helps and encourages you to investigate the cause more closely yourself.
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