Hello everyone,
I have a question about the load capacity of the shelves in the IKEA Billy bookcase. Different sources provide varying figures; some mention a maximum of 10 kg (22 lbs) per shelf, while others claim it can easily hold up to 30 kg (66 lbs). I’m interested in the exact values you know or can confirm from your own experience. It’s especially important for me to understand how the load capacity changes with different shelf widths (such as 40 cm (16 inches) vs. 80 cm (31 inches)) or depending on the material composition (chipboard, lacquered surface). The depth of the shelves also matters to me.
Can anyone provide specific numbers, preferably with information about the test conditions (point load test, distributed load, factors like how the shelves are supported)? I want to avoid the shelves sagging excessively or even breaking, since I plan to use them for a heavy collection (books, binders, etc.).
Thanks in advance for your insights!
I have a question about the load capacity of the shelves in the IKEA Billy bookcase. Different sources provide varying figures; some mention a maximum of 10 kg (22 lbs) per shelf, while others claim it can easily hold up to 30 kg (66 lbs). I’m interested in the exact values you know or can confirm from your own experience. It’s especially important for me to understand how the load capacity changes with different shelf widths (such as 40 cm (16 inches) vs. 80 cm (31 inches)) or depending on the material composition (chipboard, lacquered surface). The depth of the shelves also matters to me.
Can anyone provide specific numbers, preferably with information about the test conditions (point load test, distributed load, factors like how the shelves are supported)? I want to avoid the shelves sagging excessively or even breaking, since I plan to use them for a heavy collection (books, binders, etc.).
Thanks in advance for your insights!
J
julianaix518 Apr 2018 11:02FIKAPU schrieb:
Calculate 10–15 kg per shelf without noticeable sagging.Thank you, that sounds more realistic than some negative reports that mention only about 5 kg.
I would also be interested to know if anyone has a more detailed overview of how load capacity changes with different shelf depths. A Billy bookcase often comes with either 28 cm or 40 cm depth. Does the shelf become automatically less stable with greater depth? Or is the load capacity more influenced by the shelf width?
Also interesting: Does the load capacity change if the shelves are additionally painted or covered with a foil, or is that purely cosmetic?
Oh, the classic Billy bookshelf topic – I’ve stacked plenty of piles of books on it! 😊
When it comes to load capacity, it’s true: the wider and deeper the shelves, the more they tend to bend. The 40 cm (16 inches) depth is actually a comfortable size – going significantly deeper becomes riskier.
Paint or film hardly affect the load-bearing capacity – that’s really just for appearance. The main factors are material thickness, width, and wood quality.
My advice: for heavy books, rather place several smaller Billy shelves side by side – this distributes the load and reduces bending. 😉
When it comes to load capacity, it’s true: the wider and deeper the shelves, the more they tend to bend. The 40 cm (16 inches) depth is actually a comfortable size – going significantly deeper becomes riskier.
julianaix5 schrieb:
Does the load capacity change if the shelves are additionally painted or covered with film?
Paint or film hardly affect the load-bearing capacity – that’s really just for appearance. The main factors are material thickness, width, and wood quality.
My advice: for heavy books, rather place several smaller Billy shelves side by side – this distributes the load and reduces bending. 😉
L
luAlbert118 Apr 2018 15:44Samuel schrieb:
My tip: For heavy books, it’s better to place several small Billy shelves side by sideThat works, but it also comes with drawbacks in terms of storage space and appearance.
I have a rule of thumb here: You can assume that the load capacity of 28 cm (11 inches) deep shelves is about 10-15% higher than that of 40 cm (16 inches) deep shelves, because deeper shelves have a longer lever arm and the deflection increases more steeply.
The particle boards used are about 1.5 cm (0.6 inches) thick, which naturally limits the maximum load capacity significantly. So, if you really want to support 25-30 kg (55-66 lbs) per shelf, you would need to either install additional shelf reinforcements or use steel brackets.
luAlbert1 schrieb:
It can be assumed that the load capacity of 28cm (11 inches) deep shelves is about 10-15% higherThat is correct; in addition, shelf installation is important. If the shelves are properly inserted into the side recesses and secured with the supplied plastic dowels, the load is distributed better, and stability increases.
Without firm anchoring in the side panels, the load capacity decreases significantly.
J
julianaix519 Apr 2018 10:14elmer schrieb:
If the shelves are properly slotted into the side grooves and secured with the supplied plastic dowels, the load is distributed more effectivelyThat answers my last uncertainty very well, thank you!
So, to summarize: Officially, IKEA specifies about 13 kg (29 lbs) per shelf, which in realistic scenarios means that with an even load, no more than around 15 kg (33 lbs) per 28 cm (11 inches) or about 12 kg (26 lbs) for 40 cm (16 inches) deep shelves is advisable when the shelves are correctly installed. For wider shelves, the risk of sagging increases, so better load distribution or reinforcement (center support, brackets) is recommended.
I would say with this knowledge I can now plan my project plausibly. Thanks again to everyone who helped with numbers, experiences, and recommendations! 🙂
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