Using a Drywall Corner Tool Using a Drywall Corner Tool

What You'll Need
Jointing Compound
Drywall corner tool

Using a drywall corner tool is something of an art. Drywalling is one of the most rewarding DIY projects that you can do around your home. It's also one of the projects which people are the most confident at doing, but there are plenty of reasons why you need to be a little bit more patient.

Screwing drywall onto the walls is very easy, but dealing with joints, taping and sorting out the corners can be a little difficult at times. You will need to spend time practicing to ensure that this is as neat as possible. Wherever there is a joint in the drywall, there is a potential crack in a finished wall. That's why taping is so important, especially in the corners, because they can move so quickly and easily.

Step 1 - Preparing the Corner

Prepare the corner using your cornering tool. Apply a small amount of jointing compound to the corner. To use the corner tool, rest it on the corner and apply light pressure. Twist the tool slightly at the end of a stroke to create joints which are as thin and even as possible.

Step 2 - Cutting Tape

Measure and cut a piece of mesh tape which is the right size for the corner. This mesh tape is very easy to cut using a knife. Check that this tape is the correct length by holding it up against the wall.

Step 3 - Applying Tape

Fix the tape onto the wall. Try to make sure that it is centered on the wall, so that there is an equal width of tape on either side. Wait an hour for the tape to bond properly to the wall. Press the tape into the jointing compound by using the drywall knife.

Step 4 - Additional Coats

Once you have waited an hour you will need to apply extra coats of jointing compound in a similar way by using the corner tool. You can apply as many coats as required, but you should wait for an hour between each coat to ensure that you don't accidentally scrape the lower coats off.

When you are finished, the tape on the corner should not be visible and the drywall compound should be as smooth as possible. It can also be smoothed a little to improve the look later on.

Step 5 - Sanding

Now it's just a matter of smoothing any ridges and lines which are created by using sandpaper. Gently sand over the entire area using sandpaper, and use a vacuum to clean up after.

For an even smoother finish it's possible to wet the wall using a sponge and then use sandpaper to remove even the smallest bumps from the wall.

Now you just need to wait for the whole thing to dry overnight before painting or finishing your walls.

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