ᐅ How can you prevent shelves from sagging in a Billy bookcase?

Created on: 27 Jul 2021 08:17
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Rapunau
Hello everyone, I have a question that has been on my mind for a while: What is the best way to prevent the shelves of an IKEA Billy bookcase from sagging when loaded with heavy books or other items? I haven’t overloaded the shelves, but over time you can see them bowing more and more, which makes them seem unstable. Are there any practical tips, materials, or methods to effectively stop the sagging? Maybe there is a specific type of reinforcement or accessory that has proven effective. I would appreciate any serious suggestions, as I really don’t want to replace my Billy bookcase with another one.
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rebufar
27 Jul 2021 12:18
AMELIE schrieb:
Wood strips have the advantage of being easier to adjust and visually less noticeable.

Oh, that’s old news! If someone is bothered by a small grid of tiny details visually, maybe they shouldn’t have a bookshelf full of books in the first place. ;-)

Honestly: Who spends 80 euros on the Billy and then doesn’t even want to install a metal bracket underneath? The only solution is a consistent reinforcement using metal, and if necessary, replace the shelves with proper plywood boards—they handle that kind of load easily. Wood strips are just a gimmick—nice, but not a real upgrade.
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Leonardteo
27 Jul 2021 13:07
rebufar schrieb:
Who spends 80 euros on the Billy and then doesn’t even want to put a metal bracket underneath?

One step back to reality: The Billy is so affordable that most people just want a practical way to secure it without much effort or major modifications.

From a technical perspective, I consider wooden battens as internal reinforcement a good compromise – they are easy to install, significantly stabilize the board, and are hardly noticeable.

For permanent, heavy loads, plywood or thicker boards are certainly better, but they increase weight and sometimes cost as well.

In general, the right balance of load distribution, material quality, and reinforcement leads to the desired result.
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Rapunau
27 Jul 2021 14:26
rebufar schrieb:
Honestly: Who spends 80 euros on the Billy and then doesn’t even add a metal bracket underneath?

I understand your point, but for me, it’s precisely about minimal effort and as little visible reinforcement as possible. The appearance matters because the shelf is in the living room.
Leonardteo schrieb:
The Billy is so affordable that most people want a practical way to secure it above all.

Exactly, practical solutions with a good balance between function and appearance would be ideal. Are there any experiences on how much the shelves sag after several months, with and without reinforcement? And what is a realistic weight capacity per shelf?
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tinau
27 Jul 2021 15:00
20-25 kg per shelf is quite a lot, especially with a depth of 40 cm (16 inches). I would recommend reducing the load to individual load points and regularly checking the shelving for any warping or twisting. Crosswise screwed wooden battens and load distribution are advisable.
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Roberta
27 Jul 2021 15:21
I have had good experience with metal brackets that are screwed under the shelves. Simple and effective. Visually, they can be painted or concealed with small covers.
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LAYNE
28 Jul 2021 08:48
Roberta schrieb:
Screwed metal brackets, simple and effective.

Exactly, and if you want to get a bit creative: How about small colored brackets that add some style to the room? Their visibility then becomes a bonus rather than a drawback ;-)
Aligning the books properly can also make a big difference. A little attention to detail helps prevent the Billy shelf from sagging—and does it with a smile 🙂