ᐅ Any experiences with silicone bumpers on Kallax shelves?

Hello everyone,

I am currently building a shelving system using Kallax-style shelves and want to prevent the shelves from shifting or getting damaged during transport or moving. I am considering using silicone bumpers under the shelves to improve grip and avoid scratches.

Does anyone have experience with silicone bumpers on Kallax-style shelves? I am especially interested in:

- How effective is the grip in practice?
- Do the bumpers harden over time and cause pressure marks on the wood?
- Do the bumpers leave visible marks on the shelves?
- Are there specific types or brands that work particularly well?

I look forward to your opinions, tips, and possibly alternative solutions. Thank you in advance!

I have silicone bumpers on my Kallax shelves, and the grip is noticeably better. I haven’t noticed any pressure marks or damage. Just use round bumpers with a thickness of 5 mm (0.2 inches), which are widely available.

I can understand well that you want to secure the floors firmly, especially when they are moved frequently. I have also tried several types of stoppers. I found it positive that silicone really protects the floor and doesn’t slip, but with some models, the stoppers become a bit hard after a while. That surprised me a little, and I was initially skeptical about whether the wood could handle that well.

Regarding functionality: Silicone stoppers provide anti-slip properties due to their high friction on wooden surfaces, effectively reducing slipping. It is important that the stoppers are made of high-quality, soft silicone, as lower-quality materials can harden over time and leave marks.

The installation should be done underneath the entire shelf panel at strategic points—typically 4 to 6 stoppers depending on the size and weight of the shelves to ensure even load distribution.

Brands like "3M" or "Tesa" offer tear-resistant silicone dampers that remain stable over time. Alternatively, self-adhesive rubber pads can also work, as they do not harden as much.

Summary: Seating and stability improve, provided the materials are of good quality and correctly positioned.

CHENFAR schrieb:
It is important that the stoppers are made of high-quality, soft silicone, as inferior materials can harden over time and leave marks.

This is an important point. Have tests also examined why some stoppers harden? Are environmental factors like UV exposure or humidity significant? Additionally, how secure is the grip under dynamic loads, for example, when the shelf is moved? Static grip alone may not always be sufficient.

Does anyone have long-term experience under real-world conditions? I ask because I have read negative reviews of inexpensive silicone stoppers that deform after a few months.

I like to go into a bit more detail: Experience with silicone bumpers on Kallax shelves shows that the material composition is crucial. High-quality silicone is made from polymer-based elastomers that remain flexible at normal room temperature. Low-cost bumpers often contain cross-linked plasticizers that evaporate over time, causing the bumpers to become brittle and shrink – this can lead to pressure marks or even indentations on the wood.

As for application, I recommend:

1. Cleaning the underside of the shelf before attaching, to ensure optimal adhesion.
2. Placing the bumpers at the corners and additionally along the long sides in the middle.
3. For frequent movement or heavy loads, use bumpers with a larger contact area, e.g. bumpers with at least 10 mm (0.4 inches) diameter.

In short: avoid cheap hardware store products and instead choose those with a material data sheet.

One more question: How much weight will your shelves need to support? Are you planning to store heavy items or frequently rearrange them?