Hello everyone,
A few months ago, I bought a Malm bed from IKEA and tightened the screws properly according to the assembly instructions. However, I have noticed that they keep loosening over time. My question is: why does this happen?
Many people mention that the Malm screws tend to loosen after a while, even when tightened correctly. Is this due to the material quality, the design, or the type of screws used?
I would like to understand what causes this issue and how to prevent it. Are there specific techniques, replacement screws, or other tips to solve this problem permanently?
A few months ago, I bought a Malm bed from IKEA and tightened the screws properly according to the assembly instructions. However, I have noticed that they keep loosening over time. My question is: why does this happen?
Many people mention that the Malm screws tend to loosen after a while, even when tightened correctly. Is this due to the material quality, the design, or the type of screws used?
I would like to understand what causes this issue and how to prevent it. Are there specific techniques, replacement screws, or other tips to solve this problem permanently?
The fact that MALM screws tend to loosen over time is often due to the combination of material and design. IKEA typically uses particleboard or MDF, which is less durable for screws compared to solid wood.
This means the screws can gradually loosen within the wood as the material compresses.
Another issue is that vibrations caused by daily use of the bed can automatically loosen the screws.
This means the screws can gradually loosen within the wood as the material compresses.
Another issue is that vibrations caused by daily use of the bed can automatically loosen the screws.
I would like to explain this a bit more systematically:
1. Material: As mentioned before, MDF or particle boards are soft compared to solid wood, which reduces screw grip.
2. Screw type: MALM beds often use fasteners like cam locks and connecting bolts. While these work well with the material for stability, they are prone to loosening after repeated disassembly and tightening.
3. Load: Constant dynamic loads cause slight movement, which makes screws 'shift' within the material and become loose.
Tip: If possible, retighten the screws after some time and consider using wood glue at the screw connection for added stability.
1. Material: As mentioned before, MDF or particle boards are soft compared to solid wood, which reduces screw grip.
2. Screw type: MALM beds often use fasteners like cam locks and connecting bolts. While these work well with the material for stability, they are prone to loosening after repeated disassembly and tightening.
3. Load: Constant dynamic loads cause slight movement, which makes screws 'shift' within the material and become loose.
Tip: If possible, retighten the screws after some time and consider using wood glue at the screw connection for added stability.
dota57 schrieb:
MALM screws loosening after some time [...] is often due to the combination of material and design.I can't simply accept that. Many pieces of furniture use the same materials and don’t show the same issue.
In my opinion, it’s not just the material quality that matters, but also the specific design of the screw connections in MALM.
Are there not also threaded inserts and press-fit connections involved? How exactly do these differ from other systems, and could this particular design be causing the loosening?
Very interesting question. I would like to address the issue of MALM screws from a technical perspective:
The main reasons for screw loosening in MALM furniture are primarily the material and then the type of joint:
1. Material: MDF and particleboard have a lower density than solid wood, meaning they are more porous and less capable of holding screw connections securely. These porous structures allow the threads to loosen over time.
2. Screw design: MALM beds often use connecting bolts with eccentric locking mechanisms, which are fairly stable but do not provide solid wood threads. This causes the joint to loosen under dynamic loads.
3. Mechanics: Micro-movements caused by everyday use widen the material fibers around the screw, meaning the material yields.
4. Assembly: If the screw is not tightened with the correct torque or is repeatedly loosened and reinserted, the material weakens further.
Recommendations:
- Occasionally retighten the screws
- Use wood glue in the drilled holes for better grip
- Alternatively, use threaded inserts screwed into the MDF to provide a more stable connection
I am also interested in the type of floor or ground the bed stands on, as vibrations from this can also stress the connection.
The main reasons for screw loosening in MALM furniture are primarily the material and then the type of joint:
1. Material: MDF and particleboard have a lower density than solid wood, meaning they are more porous and less capable of holding screw connections securely. These porous structures allow the threads to loosen over time.
2. Screw design: MALM beds often use connecting bolts with eccentric locking mechanisms, which are fairly stable but do not provide solid wood threads. This causes the joint to loosen under dynamic loads.
3. Mechanics: Micro-movements caused by everyday use widen the material fibers around the screw, meaning the material yields.
4. Assembly: If the screw is not tightened with the correct torque or is repeatedly loosened and reinserted, the material weakens further.
Recommendations:
- Occasionally retighten the screws
- Use wood glue in the drilled holes for better grip
- Alternatively, use threaded inserts screwed into the MDF to provide a more stable connection
I am also interested in the type of floor or ground the bed stands on, as vibrations from this can also stress the connection.
benonon schrieb:
I’m interested in knowing what type of floor or subfloor the bed is standing on,Good question! The bed is standing on a laminate floor that is very level. So, there are no noticeable uneven spots.
I hadn’t considered that the screws might loosen because of that. The stresses from getting in and out of the bed are probably also significant. I will test this.
Thanks for the detailed tips about wood glue and threaded inserts; I will look into that.
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