ᐅ Kallax is very wobbly after moving – what can I do?

Created on: 5 Apr 2022 18:13
G
Gomini
Hello everyone,

I recently moved and completely disassembled and reassembled my Ikea Kallax shelving unit. Unfortunately, I’ve noticed that the Kallax is much more wobbly than before. It shakes and feels somewhat unstable, even though I have checked and tightened all the screws.

The unit is standing on a level floor, and I used the corner brackets. Still, it doesn’t feel secure, especially when I put weight on the shelves. My question is: Are there any specific tips or techniques to make a Kallax stable again after disassembly and reassembly so that it no longer feels shaky?

I would appreciate detailed advice, including if hidden fasteners or possible reinforcements are involved. Do certain parts need to be replaced, or is there some kind of maintenance that can be done?

Thanks in advance!
S
SauDietmar
6 Apr 2022 14:18
For systematic troubleshooting, I recommend the following approach:

1. Completely disassemble and check if all individual parts are still in good condition (especially the dowels and connection points).

2. Apply wood glue to all screws and connection points after cleaning the holes; also lightly glue the dowels.

3. After reassembling, use a spirit level to check if the shelf is perfectly level – even a slight tilt can cause instability.

4. If the floor is uneven, attach small adjustable feet or furniture glides under the shelf legs.

5. Finally, if space allows, add diagonal braces on the inner back area for additional support.

This combination has always been very helpful for my Kallax shelves during moving situations.
E
EDWARD0
6 Apr 2022 14:45
Tighten loose screws at all connections, use wood glue, and secure the shelf to the wall. This usually provides greater stability.
L
Landontau
6 Apr 2022 15:02
Hector schrieb:
Some of these thin back panels are not designed to withstand heavy loads

That is correct. The back panels are often made of poplar plywood or thin MDF sheets, which primarily provide stability against twisting and tipping but are not intended to bear significant weight.

If you secure the back panel additionally, work carefully and distribute the fasteners evenly rather than concentrating too much force in one spot.

If you are reassembling the shelf anyway, adding metal brackets at the corners can greatly increase stability without overly stressing the back panel material.

Furthermore, the shelf feet should always be fully in contact with the floor; it is essential to correct even the slightest unevenness on the outside.
P
PLOMA
6 Apr 2022 17:29
draFrederi schrieb:
Screw in a screw a little loosely, then slowly and systematically tighten it again

Very good tip! In my experience, this "star pattern" tightening of screws is ideal. First, insert all screws loosely, then tighten them one by one diagonally – this distributes the pressure and better aligns the components.

Two questions for you, Gomini:

- Have you ever treated the joint areas with glue, or only screwed them mechanically?

- Are you using only the screws supplied by Ikea, or did you replace some during the move?

Such factors can significantly affect stability.
O
olivernu
7 Apr 2022 09:11
A quick additional note on load capacity: Kallax shelves are primarily designed for moderate loads. If you place many heavy books or electronic devices on them, it can increase wobbling, even if everything is assembled correctly.

It is advisable to distribute the loads accordingly and, if necessary, reinforce the middle or lower compartments with small brackets or strips.

However, the joints are generally the main cause if the system becomes unstable.
G
Gomini
7 Apr 2022 11:48
Thank you for the many helpful answers; they are very useful to me!

To add some information:
- I actually only used the original Ikea screws, no replacement parts.
- I have not used wood glue so far, but I will definitely apply it.
- When reassembling, I first loosely fitted all the joints together, then tightened all the screws.
- The shelf is mainly loaded with books and decorations.

I will try the tip about not overtightening the screws.

I will also carefully check the back panel again and, if necessary, reinforce or screw it in from the inside.

Thanks again to everyone, I will report back with the results!

Similar topics