How to Patch a Hole in Drywall
Repair holes from door knobs, accidents, or old fixtures with a professional-quality patch that blends seamlessly into the wall.
Step-by-Step Instructions
Assess the Hole Size
For holes smaller than a dime, spackle is enough. For holes up to 4 inches across, use a self-adhesive mesh patch. For holes larger than 4 inches, you will need to cut out a section and insert a new piece of drywall with a backing support.
Prepare the Hole
For a mesh patch, simply clean the area of loose debris and dust. For larger holes, use a utility knife to cut the hole into a clean square or rectangle. Cut back to the nearest wall studs on both sides so you have solid wood to screw the new patch into.
Install Backing for Large Holes
Cut a wood furring strip longer than the hole height. Slide it inside the wall, center it behind the hole, and secure it with drywall screws through the existing drywall into the strip. This gives you a solid surface to screw the new drywall patch to.
Cut and Fit the Patch
Measure the hole and cut a new piece of drywall about 1/8 inch smaller in both dimensions. Test-fit it — it should slide in easily with a small gap around the edges. That gap will be filled with compound. For mesh patch holes, skip this and the next step.
Secure the Patch
Place the drywall patch into the hole and drive drywall screws through it into the wood backing or studs. Sink the screw heads just slightly below the surface without tearing the paper. Use four screws minimum — one near each corner of the patch.
Apply Drywall Tape
For a mesh patch, peel and stick it over the hole. For a large patch, apply self-adhesive fiberglass mesh tape or paper joint tape over every seam between the old drywall and the new patch. The tape prevents cracks from forming at the joint.
Apply the First Coat of Compound
Use a 6-inch putty knife to spread joint compound over the tape and patch. Work from the center outward, feathering the edges so the compound blends into the surrounding wall. For mesh patches, apply enough compound to fully cover the mesh texture. Let dry 4-6 hours.
Apply Second and Third Coats
Once dry, lightly sand with 120-grit paper. Apply a second coat with an 8-inch or 10-inch knife, feathering the edges further out. Let it dry, sand again, and apply a thin third coat if needed. Each coat should be wider than the last to create a smooth transition.
Final Sanding
Once the final coat is completely dry, sand the entire area with 220-grit sandpaper until it is perfectly smooth and flush with the wall. Run your hand over it — you should not feel any ridges, bumps, or edges. Wipe away all dust with a tack cloth.
Prime and Paint
Apply a coat of primer over the patched area. New joint compound is porous and will absorb paint differently than the surrounding wall if not primed. Once the primer is dry, apply your wall paint with a small roller to match the existing texture. Two thin coats are best.
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