How To Sand Inside Corners Drywall

Sanding inside corners of drywall can be a tricky task, but it is possible to achieve a smooth, professional finish with the right tools and techniques.

Here are the essential steps for sanding inside corners of drywall:

Materials You'll Need:

Drywall sanding sponge or sanding block
Sandpaper (120-grit or 150-grit)
Dust mask
Safety glasses

Step 1: Prepare the Area

Before you start sanding, make sure to clear the area of any debris or dust. Wear a dust mask and safety glasses to protect yourself from harmful particles.

Step 2: Choose the Right Sandpaper

For inside corners, it is best to use a drywall sanding sponge or sanding block with 120-grit or 150-grit sandpaper. These grits are fine enough to smooth the drywall without damaging the surface.

Step 3: Sand in a Circular Motion

Start by sanding in a circular motion, applying light pressure. Avoid sanding in a back-and-forth motion, as this can create scratches.

Step 4: Be Patient and Careful

Sanding inside corners requires patience and care. Take your time and work slowly, especially around the edges. Sanding too aggressively can damage the drywall.

Step 5: Check for Smoothness

After sanding, check the inside corner for smoothness by running your fingers over it. If you feel any rough spots, continue sanding until they are gone.

Step 6: Clean Up

Once you have finished sanding, clean up the area by vacuuming or sweeping up any dust. You can also use a damp cloth to wipe down the sanded area.

Tips for Sanding Inside Corners:

Use a sanding sponge or block that is designed for inside corners, as these tools will fit snugly into the corner and make sanding easier.
Sand in a well-ventilated area or wear a dust mask to protect yourself from harmful particles.
Start with a light sandpaper (120-grit or 150-grit) and gradually move to a finer grit if necessary.
Be patient and take your time. Sanding inside corners can be time-consuming, but it is important to do it carefully to achieve a smooth finish.