Joints fill drywall walls


A drywall or a cladding of plasterboard is built quickly. In contrast to a masonry wall, no mortar must be mixed and the long dry periods are also eliminated. However, the joints of the wall must be filled.

Fill transitions invisibly

Filling is at the same time a grateful and thankless task. For the better and more carefully worked, the less you will see from this work later on. Here, every little mistake and carelessness makes itself felt later.

If you do not want to be annoyed by these transitions over the years, then you must invest a lot of time and patience in the trowel work.

Fill with joints step by step

  • Plaster powder / ready-made plaster mass
  • reinforcement tape
  • water
  • Sandpaper in different grain sizes
  • Orbital sander / sanding block
  • spatula
  • plaster pot

1. Preliminary work

At various sensitive points, a reinforcement tape must be applied to the joint. To do this, it is best to lubricate some of the plaster on the joint and press the fabric into the moist mass.

2. spatulas

Whether you are using finished putty or some gypsum powder, you should not completely fill in equal joints. The mass is otherwise difficult to dry and you will later have difficulty grinding.

3. Connection points

At the transition from the floor to the plasterboard wall it would be better to use acrylic or silicone instead of plaster to close the gap. Here the dried plaster would tear too easily later. It is similar at pipe connections and around the door frame, for example.

4. Sanding and plastering

After the first pass of the plaster, you should rub the dried mass roughly once. Even if the gap may not be completely filled. This is important so that the two layers connect well with each other. Otherwise the plaster would rest on a mirror. But if he is roughened, he connects with the new situation.

5. Sand, sand and sand again

If you do not want to wallpaper the wall later, you will need to work very carefully with differently grained sandpaper. The effort is worthwhile but later when painting.

Tips & Tricks

There are self-adhesive joint tapes that you can either fill over or cover with an acrylic compound. Of course, these prevent a later tearing of the joint even better if the individual components work differently.


Video Board: Complete Drywall Installation Guide Part 6 Filling Gaps