How to Patch a Hole in Drywall (Small, Medium, and Large Holes)

A clear, step-by-step guide to patching any size hole in drywall — from doorknob dings to fist-sized gaps — using the right method for each. Tools, materials, and the mistakes to avoid.

By Chris Mendenhall

7 min read

Whether it’s a doorknob ding, a furniture-moving incident, or a fist-sized hole nobody wants to talk about, drywall damage looks worse than it actually is. You can patch a hole in drywall yourself — at most levels of damage — for under $20 and in less time than it takes to watch a movie.

This guide walks through three patch methods based on hole size: small (nail-hole to quarter-sized), medium (up to six inches across), and large (anything bigger than that). The technique changes with size, but the principle is the same: fill, smooth, blend, paint.

What You’ll Need

The exact tools depend on hole size, but here’s the full kit for any patch:

  • A putty knife (a 2-inch and a 6-inch are ideal)
  • Spackle or lightweight joint compound
  • Drywall patch kit (for medium holes) — about $5
  • A scrap piece of drywall (for large holes)
  • 1x3 furring strips or scrap wood (for large holes)
  • Drywall screws (1-1/4 inch)
  • A drill
  • A utility knife
  • A drywall saw or keyhole saw
  • 120- and 220-grit sandpaper
  • A sanding block
  • Primer
  • Matching paint
  • A small paintbrush or mini-roller

You probably already own most of these. The specialty items (joint compound, drywall patch kit) cost very little.

Small Holes: Nail Holes and Dings

For anything up to about the size of a quarter — picture-hanging nail holes, doorknob dents, screw pulls — you don’t need patches or backing. Just fill and sand.

Steps

  1. Clear any loose paper or paint around the hole with a utility knife. Don’t enlarge the damage; just trim ragged edges.
  2. Scoop a small amount of spackle onto your putty knife. Press it into the hole at a 45-degree angle, then drag across the surface to fill flush.
  3. Make a second pass with the knife held flat to scrape off excess. The patch should be flush with the wall, not built up above it.
  4. Wait for it to dry. Most spackles take 1 to 2 hours. Don’t rush this — wet spackle pulls out when you sand it.
  5. Sand smooth with 220-grit. Use light pressure and check by running your hand over the spot. If you feel a bump or divot, hit it again.
  6. Prime and paint. Skip the primer and you’ll see the patch through your topcoat — every time.

For tiny pinholes, you can sometimes get away with just paint, but for anything you can feel with your finger, fill it first.

Medium Holes: Doorknob Punches and Up to Six Inches

This is the size that doorknob handles, falling objects, and small accidents create. The hole is too big to just spackle (the compound has nothing to hang on to) but small enough that you can use a drywall patch kit instead of cutting a clean square.

Steps

  1. Clean up the hole edges. Use a utility knife to trim loose drywall paper and crumbling edges so you have a clean opening. Don’t worry about making it perfectly round or square.
  2. Apply the patch. A drywall patch kit is a self-adhesive mesh square with a metal backing plate (or just a stiff mesh patch). Peel the backing and stick it centered over the hole. Press the edges firmly against the wall.
  3. First coat of joint compound. Use a 6-inch putty knife to spread joint compound over the patch, feathered out a couple of inches past the patch edge in every direction. The patch should be fully covered.
  4. Let it dry. Joint compound takes 4 to 24 hours depending on thickness and humidity. Don’t skip this. Wet compound under a second coat takes forever to cure and cracks.
  5. Sand lightly, then apply a second coat — this time slightly wider, feathered another inch beyond the first.
  6. Let it dry. Sand again. A third coat may be needed for a truly invisible patch. Each coat should be thinner and wider than the last.
  7. Prime and paint the whole repaired area, blending into the surrounding wall.

The skill in patching is the feathering — gradually thinning the compound at the edges so there’s no visible ridge.

Large Holes: Bigger Than Six Inches

For anything bigger than a softball, the patch kit method doesn’t work — there’s not enough surrounding wall to support the mesh. You need to install an actual piece of drywall as a backing.

Steps

  1. Square up the hole. Use a drywall saw or utility knife to cut the hole into a clean rectangle. This isn’t optional — a rectangular hole is much easier to patch than an irregular one.
  2. Check for wiring or pipes inside the wall before you cut. Shine a flashlight in. If you see anything, stop and reconsider where you cut.
  3. Install backing strips. Cut two pieces of 1x3 furring strip slightly longer than the height of the hole. Slide each into the hole, holding it flush against the back of the existing drywall, and drive drywall screws through the wall into the strip — one near the top and one near the bottom of each strip. The screw heads should sit just below the wall surface (a “dimple”). These strips give the patch piece something to screw into.
  4. Cut a patch piece from scrap drywall, sized to fit your rectangular hole. Aim for about 1/8 inch smaller than the opening on each side — a snug fit, not forced.
  5. Screw the patch into the backing strips. Four screws is usually enough — one near each corner. Dimple them just below the surface.
  6. Tape the seams. Apply drywall mesh tape or paper tape over each of the four seams between patch and existing wall.
  7. First coat of joint compound. Cover all four seams and screw dimples, feathered out a few inches.
  8. Let it dry. Sand. Second coat, wider and thinner. Then a third if needed. Same as the medium-hole method, but on four seams instead of one patch.
  9. Prime and paint.

This sounds like a lot, but it’s about 30 minutes of active work spread over a day (the drying time is most of it). The end result is invisible.

Common Mistakes to Avoid

Sanding before the compound is fully dry. This is the number-one cause of bad patches. Wet compound gums up the sandpaper, pulls out of the wall, and leaves you with a worse hole than you started with. If the patch looks darker than the surrounding compound, it’s still wet.

Using too much compound at once. Thick layers shrink as they dry and crack. Three thin coats always look better than one thick one. Patience wins here.

Skipping primer. Joint compound and spackle are porous — they suck up paint differently than the rest of your wall, so you can see the patch through the topcoat. Primer seals the patch so the final paint matches.

Trying to color-match old paint perfectly. If the existing wall is more than a few years old, the paint has faded. A “perfect match” from the can will look brighter than the wall around it. You may need to paint the entire wall corner-to-corner — or hope the lighting hides it.

Forgetting to feather the edges. A patch with a sharp edge of compound looks like a circle on the wall, even after painting. Feather thin — your last pass with the putty knife should leave almost no compound at the outer edge.

Frequently Asked Questions

How long does drywall compound take to dry? Spackle dries in 1 to 2 hours. Lightweight joint compound takes 4 to 8 hours for a thin coat, longer for thicker coats. Humidity slows everything down. If you’re in a hurry, look for “5-minute” or “20-minute” setting-type compound — it cures chemically, not by drying, and is ready to recoat much faster.

Do I need to find a stud? Only for large holes, and only because you want the backing strips supported. For small and medium holes, no — the patch material does the work.

Can I just use a metal patch with no compound? The metal patches alone leave a visible bump. Joint compound feathered around the edges is what makes the patch invisible. There’s no shortcut here.

What’s the difference between spackle and joint compound? Spackle is lightweight, dries fast, and is best for small holes. Joint compound is heavier, takes longer to dry, and works better for larger areas and seams. For most patches above quarter-size, joint compound is the better choice.

The previous owner used the wrong color paint. Can I tell? Hold a piece of plain white printer paper against the wall. The wall will look slightly off-white or yellow next to it — that’s its actual current color. If the can in your basement reads “Pure White” but the wall reads cream, that paint won’t match.

You’re Capable of This

Drywall patching looks like a contractor job, but it’s mostly patience and a putty knife. The trick isn’t skill — it’s letting each coat dry, feathering the edges, and not skipping the primer. Do those three things and the only person who’ll ever know there was a hole is you.