Hello everyone, I have a Kallax shelving unit from Ikea that I use as a cupboard for dishes. Unfortunately, the shelves have started to sag noticeably, especially when I place heavy items like stoneware or thick-walled glasses on them. I’m wondering how I can solve this problem in a more permanent way. Does anyone have experience with reinforcements, replacement shelves, or alternative materials for the shelves? What tips are there to keep the shelves stable and prevent sagging? I would really appreciate practical advice, including experiences with load limits or recommendations for accessories. Thanks in advance!
Hello binu36,
The issue with sagging shelves in the Kallax is unfortunately quite well known, as the shelves are made from relatively thin MDF.
I can recommend a few common solutions: Many users replace the original shelves with plywood or multiplex boards, which are particularly sturdy. You can have them custom cut to size by any carpenter.
Alternatively, there are so-called shelf supports with additional bracing profiles available online and from Ikea itself, which are screwed underneath the shelves. This significantly increases the load capacity.
If you’re handy, you can also install a substructure made of aluminum rails or metal brackets.
Feel free to ask if you want more details on any of these suggestions!
The issue with sagging shelves in the Kallax is unfortunately quite well known, as the shelves are made from relatively thin MDF.
binu36 schrieb:
Has anyone had experience with reinforcements, replacement shelves, or alternative materials for the shelves?
I can recommend a few common solutions: Many users replace the original shelves with plywood or multiplex boards, which are particularly sturdy. You can have them custom cut to size by any carpenter.
Alternatively, there are so-called shelf supports with additional bracing profiles available online and from Ikea itself, which are screwed underneath the shelves. This significantly increases the load capacity.
If you’re handy, you can also install a substructure made of aluminum rails or metal brackets.
Feel free to ask if you want more details on any of these suggestions!
Hello everyone,
I also use the Kallax for heavy dishes and initially had the same issue with the shelves bending.
That worked very well for me. I took precise depth measurements, ordered multiplex panels (18 mm) (0.7 inches), and inserted them. The sturdy panels handled the load very well.
Additionally, for heavy items, I made sure to place them as close to the outer walls as possible – the shelves are usually more stable there.
One suggestion: If you don’t want to buy new shelves, you can also support them with strong shelf brackets in the middle – like small clamps or wooden strips that you attach unobtrusively.
Best regards!
I also use the Kallax for heavy dishes and initially had the same issue with the shelves bending.
tralo45 schrieb:
Have panels made from reinforced plywood or multiplex
That worked very well for me. I took precise depth measurements, ordered multiplex panels (18 mm) (0.7 inches), and inserted them. The sturdy panels handled the load very well.
Additionally, for heavy items, I made sure to place them as close to the outer walls as possible – the shelves are usually more stable there.
binu36 schrieb:
What tips are there to keep shelves stable and prevent bending?
One suggestion: If you don’t want to buy new shelves, you can also support them with strong shelf brackets in the middle – like small clamps or wooden strips that you attach unobtrusively.
Best regards!
Hello,
I would like to add my two cents since the question is quite specific:
The Kallax shelving unit was originally not designed to support very heavy loads on individual shelves. The shelves are made of medium-density fiberboard and are not comparable to load-bearing boards.
My advice: Either replace the shelf with a completely different type of board such as plywood or laminated wood, or, if you want a long-term solution, attach a longitudinal brace between the top and bottom shelves.
Another option: Use metal shelf supports and profiles that distribute the load evenly.
Inexpensive plastic or wooden support feet placed in the middle can help temporarily, but they are more of a makeshift solution and not always visually appealing.
If you are skilled in DIY, you should consider finding a carpenter for the cutting – then everything will fit perfectly.
I would like to add my two cents since the question is quite specific:
The Kallax shelving unit was originally not designed to support very heavy loads on individual shelves. The shelves are made of medium-density fiberboard and are not comparable to load-bearing boards.
binu36 schrieb:
How can I solve this problem as permanently as possible?
My advice: Either replace the shelf with a completely different type of board such as plywood or laminated wood, or, if you want a long-term solution, attach a longitudinal brace between the top and bottom shelves.
Another option: Use metal shelf supports and profiles that distribute the load evenly.
Inexpensive plastic or wooden support feet placed in the middle can help temporarily, but they are more of a makeshift solution and not always visually appealing.
If you are skilled in DIY, you should consider finding a carpenter for the cutting – then everything will fit perfectly.
Hello binu36 and everyone,
I understand your problem very well because I had exactly the same issue with my Kallax some time ago. It’s frustrating when you really value the function of the shelf but the load capacity is not sufficient. During that phase, I often wondered if I should reduce the weight of my kitchen a bit – but obviously, that’s not really a solution 😉
I used that approach and can confirm it significantly improves stability, although it’s not perfect aesthetically. I’m surprised no one has mentioned the idea of a continuous central beam that divides the shelf base into two halves and supports it much better.
Maybe a combination of new wood panels and a central crosspiece would be effective?
I’d be very interested in your opinions and experiences!
I understand your problem very well because I had exactly the same issue with my Kallax some time ago. It’s frustrating when you really value the function of the shelf but the load capacity is not sufficient. During that phase, I often wondered if I should reduce the weight of my kitchen a bit – but obviously, that’s not really a solution 😉
Annedeo schrieb:
stable shelf supports placed in the center underneath
I used that approach and can confirm it significantly improves stability, although it’s not perfect aesthetically. I’m surprised no one has mentioned the idea of a continuous central beam that divides the shelf base into two halves and supports it much better.
Maybe a combination of new wood panels and a central crosspiece would be effective?
I’d be very interested in your opinions and experiences!
Hey everyone, this sounds like a great project!
I totally agree – that’s exactly what we did, and it turned out incredibly sturdy! I had plywood floors installed, and between the side walls, I screwed in aluminum brackets that act as reinforcements and completely prevent any bending. The result is amazing, everything holds up perfectly and it looks stylishly robust 🙂
Plus, this kind of upgrade makes the whole thing really customizable.
So: get cutting and start screwing! It’s definitely a worthwhile investment.
meole schrieb:
Maybe a combination of new wooden panels and a central bar would be effective?
I totally agree – that’s exactly what we did, and it turned out incredibly sturdy! I had plywood floors installed, and between the side walls, I screwed in aluminum brackets that act as reinforcements and completely prevent any bending. The result is amazing, everything holds up perfectly and it looks stylishly robust 🙂
Plus, this kind of upgrade makes the whole thing really customizable.
So: get cutting and start screwing! It’s definitely a worthwhile investment.
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