ᐅ Which materials are more prone to bending in BILLY?

Created on: 14 Apr 2021 08:43
K
Kainpo
K
Kainpo
14 Apr 2021 08:43
Hello everyone,

I am currently looking more closely at the IKEA Billy bookcase and wondering which materials in this piece of furniture are most likely to bend. Specifically, I am interested in whether the shelves themselves, the side panels, or perhaps even the back panel tend to deform under heavier loads. Are there differences between the particleboard, fiberboard, or other materials used in construction? And does the surface finish matter, for example, whether the panels are painted or simply laminated?

I would be interested to hear about your experiences or if there are any technical data available that provide insight into how these materials behave under load. It is especially important for me to understand how stable the bookcase remains when placing heavy books or other items on it, and what can be done to minimize sagging.

I look forward to an engaging discussion!
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Giagau
14 Apr 2021 09:17
Hello Kainpo,

It is now well known that in BILLY shelves, the particleboard shelves tend to bend under heavy loads. The side panels are usually somewhat thicker and more robust, so they are less prone to this issue.

The back panel, on the other hand, often consists of a thin hardboard, which doesn’t bend as easily but can crack or come loose under excessive stress. The surface finish itself has only a minor effect on bending but provides lasting protection against moisture and mechanical scratches.

If you are placing heavy books inside, it is advisable to provide additional support for the shelves or at least not exceed the maximum recommended load. Technically, much depends on the density and thickness of the particleboard. I hope this helps you for now.
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vin_leo
14 Apr 2021 09:55
Giagau schrieb:
especially the chipboard shelves tend to bend under heavy loads

Exactly, the shelves are usually the weak point unless you’re furnishing a room at playpen level 😉 . The side panels generally hold up quite well, especially if they’re reinforced with dowels.

I once tried loading my BILLY with really heavy books – that’s when the shelf started to sag. Tip: place an extra board as additional support, and it will hold up much better!

Also, if you move the shelves around frequently, it’s worth handling them a bit more carefully, as you can quickly notice when the material quality has reached its limit.
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gauvin37
14 Apr 2021 10:21
In short: The chipboard shelves bend first.

Side walls are more stable; the back panel is usually a thin hardboard, more likely to tear than to bend.
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GIPAPO
14 Apr 2021 12:39
The cladding itself does not affect bending.

If the load is too great, additional supports for the floors can help.
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Marlenepa
14 Apr 2021 15:12
Hello Kainpo,

I have used several BILLY shelves for years, including with heavy loads. In my experience, the particleboard shelves tend to sag visibly over time, especially when they are loaded over long spans. The side panels hold up better against the pressure, which is also due to their thickness and the solid frame.

The back panel is very thin and mainly meant for stabilization; it rarely bends but can get damaged if the shelf is moved or overloaded excessively. It is important to observe the recommended load limits and to reinforce the shelves with small metal brackets when placing heavy items.

What I can also recommend: for heavy loads, shelves with steel reinforcements or those made entirely of solid wood often perform better than particleboard, although they are naturally in a different price range.

I hope this helps!