ᐅ How can BILLY shelves be securely mounted to drywall (also known as plasterboard or gypsum board) walls?

Hello everyone, I want to securely mount several Billy shelves on a drywall and am having some trouble finding the right fasteners. The wall is made of a standard 12.5 mm (1/2 inch) drywall panel, and I’m wondering which anchors or brackets are truly recommended to keep the shelves stable and secure, especially when fully loaded. Can I use hollow wall anchors, or is it better to opt for special metal anchors? What about the maximum load capacity, and how can I prevent the screws from loosening over time or the drywall from tearing out? I’m looking forward to concrete tips and practical experience!

For BILLY shelves installed on drywall, I recommend hollow wall anchors with metal expanding claws. These provide good load distribution and hold. Screws should definitely be longer than the anchor length. Avoid using plastic anchors alone, as they usually do not hold for long.

The precise use of fasteners in drywall requires some attention, especially for shelves like BILLY, which can easily hold 20-30 kg (44-66 lbs) or more per shelf when fully loaded. It is important to first check the wall structure: regular drywall alone supports very little weight, so you should try to screw directly into the studs (wood or metal) behind it whenever possible. If that is not an option, I use metal cavity anchors such as "Molly bolts" or high-quality toggle anchors. These expansion anchors distribute the load over a wider area and prevent pull-out. Screws should embed at least 50 mm (2 inches) into the anchor. For BILLY shelves, I recommend at least three attachment points per shelf, preferably into studs. Without these metal anchors, dangerous situations can arise.

I understand that this can be a challenge, especially because you don’t want the shelf suddenly falling off the wall. At first, I was also concerned whether standard cavity anchors would be sufficient, particularly when children are in the house and the shelf is fully loaded. My consultation at the home improvement store confirmed that metal anchors, like molly bolts, are safer. Still, working on the wall can be nerve-wracking. But it’s worth putting in a bit more effort to ensure safety.

Palenar schrieb:
If that’s not possible, I use metal hollow wall anchors like so-called "Molly metal anchors" or high-quality toggle anchors.

That’s exactly a good question – in my case, attaching to studs is partly possible but not everywhere. Where there is no stud, there are only pure drywall surfaces. How would you recommend proceeding in such cases? Are Molly anchors sufficient, or does the wall need to be reinforced differently? Should additional bracing or wooden battens possibly be installed behind the drywall?

In areas with plain drywall surfaces without studs, the load limits are significantly reduced. Molly bolts are the industry standard here because they distribute the load widely behind the panel. A better solution is to install additional reinforcements, for example by drilling and screwing wooden battens that connect the drywall to the load-bearing structure from the backside. Alternatively, special heavy-duty anchors for drywall are available, although their maximum load capacity does not directly compare to that of a stud. Without reinforcement, loads should not exceed 10 kg (22 lbs) per fixing point. It is therefore advisable to plan multiple fixing points and distribute the weight.