ᐅ BILLY shelf special screws for increased load capacity?

Created on: 20 Apr 2020 14:07
D
duwoodrow
Hello everyone,

I am currently looking into a specific question regarding the IKEA Billy bookshelf: Are there any special screws or fasteners that should be used for increased load on the shelf, instead of the standard screws included in the basic package?

Specifically, I want to load the shelf more heavily (e.g., with more books or heavy decorative items) and wonder whether the original mounting hardware can withstand the increased stress over time or if it is advisable to use reinforced screws, wall plugs, or other connectors.

My question concerns not only the wall fixing but also all the screws that connect the individual shelf components – for example, the fastenings for the back panel, side panels, or shelf supports.

Does anyone have experience or recommendations for special screws that can significantly improve the stability of the BILLY bookshelf?

Thanks in advance for your answers.
N
Nadine
20 Apr 2020 16:45
Hello,

I would like to add some basics to this topic: The Billy shelves are designed to work well under normal use with the included screws.

However, if you plan to store heavy loads, it is advisable to consider stronger screws, higher quality materials, and especially secure wall fixings.

Tip: When replacing the screws, make sure to use galvanized or stainless steel types to increase durability.

The back panel (usually particleboard) is also crucial for stability – additional brackets or cross braces can help here.

If you screw the shelf parts directly together, longer machine screws with nuts are also a good option.

Feel free to ask again if you need more specific accessories!
M
meGreg
20 Apr 2020 17:05
LuMarcel43 schrieb:
I have a question about whether there are any scientifically reliable data or product specifications from IKEA regarding the screw load capacities.

That is actually an interesting point – IKEA usually only states maximum load capacities per shelving unit (in kg), but doesn’t provide details about the screws used.

However, I assume that most of the load is carried by the joints and the wall fixings, rather than by individual screws.

So: if you want more safety, just use better screws and tighten all connections properly.

It’s like with a bicycle – higher-quality replacement parts simply offer more security 🙂
B
bente
20 Apr 2020 17:33
In my case, it turned out that the shelf made with standard materials is stable, but the shelves bend slightly under heavier loads.

Therefore, I considered using special screws, but on the advice of my building materials supplier, I opted for thicker shelves and also installed metal brackets.

Perhaps a combination of several measures is the best approach.
J
JUHAU
20 Apr 2020 18:02
Use thick screws, hardwood nuts, or washers for better stability.

Don’t forget to fix the shelf to the wall with suitable anchors (wall plugs / rawlplugs), otherwise the shelf might eventually fall down.
C
COLEBAR
20 Apr 2020 18:15
Stabilizing the shelf works well with corner brackets and longer screws.

Original screws are often too short for additional brackets.

My tip: use 5mm (0.2 inch) thick screws if the shelf is mounted on the wall.
D
duwoodrow
21 Apr 2020 09:03
Thanks for the information so far! I’m wondering if it would be possible to switch to metric screws, for example using 5 mm screws with matching threads and nuts instead of the IKEA standard Spax screws with a 3.5 mm diameter.

Would this change significantly improve the stability, even if the shelf isn’t completely taken apart and reassembled? Or is there a risk of damaging the wood too much in the process?

Has anyone done something like this before?