ᐅ How stable are Ikea PAX back panels under load?

Created on: 4 Nov 2019 18:13
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Ken38
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Ken38
4 Nov 2019 18:13
Hello everyone,

I am currently looking into the stability of Ikea PAX wardrobes, specifically focusing on the back panel when it is subjected to load. My question is: how stable are the back panels of the Ikea PAX systems under load, for example, when shelves or heavy objects are leaned against the back panel or when it is used as additional support? I ask because I am planning to hang items with some weight on the back panel itself and am unsure whether the thin back panel board will hold up over time or if it might bend or even tear.

Has anyone had experience with the load-bearing capacity of the PAX back panels? Are there ways to improve their stability, or should I expect some limitations?

Looking forward to your insights and advice!
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reoleon47
4 Nov 2019 19:48
Hey Ken38! It’s great that you’re asking such detailed questions! 😊

From my own experience, the PAX back panels are generally thin but surprisingly sturdy when installed correctly. The thin back panel mainly serves to reinforce the structure and prevent lateral twisting, which Ikea has done really well.

However, it’s best to avoid attaching very heavy items directly to the back panel. Small shelves or hooks are fine, but I wouldn’t just hang heavy loads or large weights there. This could cause deformation or issues with the screws.

What always helps me is adding extra reinforcements or securing the back panel with small brackets; then the whole thing holds very solidly! So go ahead, but a bit of caution is definitely wise. Good luck with the assembly and let us know how it goes! 👍
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gaubla
5 Nov 2019 08:32
reoleon47 schrieb:
The thin back panel is mainly designed to reinforce the structure and prevent lateral twisting, which Ikea has solved very well.

That is an accurate statement.

For technical clarification: The back panel of the PAX system usually consists of a thin particle board or hardboard panel about 3 mm (0.12 inches) thick. It is primarily intended as a cross-bracing to keep the cabinet square and prevent lateral deformation.

Under point loads, such as hanging lightweight items, the back panel can absorb this temporarily, but it is not designed to carry significant loads directly.

I recommend adding extra reinforcements if larger loads need to be supported on the back panel, for example by installing metal brackets or a reinforced back panel. Securing the entire PAX cabinet to the wall also greatly improves stability.

In summary: The PAX back panel mainly contributes to overall rigidity, rather than directly supporting heavy loads on the rear surface.
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nera59
6 Nov 2019 14:07
Hello Ken38,

I would like to add a few tips that might help to better assess the load-bearing capacity of PAX back panels and possibly optimize it.

1. Material Quality: Ikea usually uses 3 mm (0.12 inch) hardboard for PAX back panels. Due to its material properties, it provides a certain level of stiffness but is very thin. This means that point loads, such as hooks or small shelves mounted directly to the back panel, can often cause permanent deformation.

2. Avoiding Point Loads: If possible, heavy or bulky items should not be hung only on the back panel. Instead, the load should be distributed to the side panels or the frame, as these are more load-bearing.

3. Reinforcement Methods:
- Measures like attaching angle brackets between the back panel and the frame make practical sense, especially if the back panel is not already fixed with nails or screws.
- Alternative: replacing the thin hardboard with a thicker plywood panel, if you have the necessary DIY skills.

4. Assembly: A properly executed assembly using all the intended screws and nails is crucial for overall stability. This often matters more than the back panel thickness alone.

I hope these suggestions are helpful for your planning. If you have any questions about practical implementation, I am happy to assist.