Patch a drywall hole

What you'll need

Tools

• Utility knife
• Putty knife (4" and 6")
• Drywall saw
• Sanding sponge (150 + 220 grit)

Materials

• Pre-mixed lightweight joint compound (DAP, CGC)
• Self-adhesive mesh patch (3"x3" or 6"x6")
• For larger holes: scrap drywall + 1x3 furring strip + drywall screws

Small holes (nail / screw holes)

Fill with spackle, scrape flush, sand after 20 min, prime, paint.

Medium holes (up to 4")

1. Trim loose paper around the hole with a utility knife.
2. Apply self-adhesive mesh patch over the hole.
3. Spread a thin coat of joint compound over the mesh, feathering 4" past the edges.
4. Let dry 4–6 hrs, sand lightly, apply second thinner coat 6" past edges.
5. Dry overnight, sand smooth, prime, paint.

Large holes (> 4")

1. Cut a square around the hole using the drywall saw.
2. Cut a piece of 1x3 wood ~4" longer than the hole, slip behind the wall, screw it to the existing drywall.
3. Cut a drywall patch to fit the hole, screw it to the wood backer.
4. Tape all four seams with paper tape and joint compound. Apply 3 coats, each feathered wider, sanding between.
5. Prime and paint.

Pro tips

• Always feather wider than you think — 3 thin coats beat 1 thick one.
• Use a damp sponge instead of sandpaper for the final pass — zero dust.
• Prime patched areas before painting or they'll "flash" (look dull).