Drywall and dowels

The capacity of drywall is one of the major disadvantages. To create a basic hold, special dowels must be used. Below you will find all the important information on how and which dowels to use for a drywall.

Fundamentals of the load capacity of drywall walls

First of all, the basic capacity of a drywall is crucial. However, this differs considerably analogous to the design of the dry components:

  • Single-layer drywall: 30 to 40 kg per meter
  • two-ply drywall: 60 to 70 kg per meter

Here you will find a detailed guide on how to double-fold a drywall.

Dowels for the drywall

Now we can turn to the dowels for a drywall. First the bad news: not all dowels can be used in a drywall. The good news: there are special dowels for drywall, which have a decent load capacity.

Suitable dowels for drywall

But first a look at suitable dowels. Hard to believe, but just the all-purpose dowel, which is hardly used today, holds relatively well in a drywall. However, the load is not all that high depending on the material. In plasterboard walls and with low wall thickness, the gypsum crumbles around the dowel with time. Therefore, special dowels should be used.

Load capacity Cavity dowel for the drywall

These are cavity dowels. These hollow dowels pull the split shaft when screwing a screw star-shaped to the lightweight board. As a result, achieve such cavity dowel in a drywall, regardless of material of the lightweight panels, a fairly neat carrying capacity.

  • Plastic cavity dowels: 25 kg for single-layer, 40 kg for double-layer planking
  • Metal cavity dowels: 30 kg for single-layer, 50 kg for double-layer planking

That would be the carrying capacity of the dowels in a lightweight wall. Now, however, the carrying capacity of drywall in general must be taken into account. For this, the depth of load is decisive, ie how far an object reaches from the drywall - the depth of the objects to be fastened.

The load depth single-layer or double-layer drywall

Here, the lower the depth, the higher the load capacity. Here are some of the tables that can be found on the packaging of the dowel manufacturers or on data sheets on their homepage. Generally it can be stated in one layer (in brackets two layers):

  • Load depth up to 10 cm: 70 kg (100 kg)
  • Load depth up to 30 cm: 30 to 40 kg (60 to 70 kg)
  • Load depth up to 50 cm: maximum 10 kg (30 to 40 kg)

The load depth can be clearly supported by the integration of crossbeams. In the kitchen, you can also lift the load capacity slightly, if you attach outside of the drywall in addition profiles that are screwed accordingly often. However, this is more of a stopgap. The profiles behind the wall as a crossbeam are clearly to be preferred.

Tips & Tricks

In the house journal you will find numerous other articles about drywall. Here you can read about how to insulate a drywall wall optimally.

Artikelbild: 21MARCH / Shutterstock

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