Dent or gouge? Check before you steam
Steam works on dents, not gouges. A dent is wood fiber that has been crushed, and moisture and heat can make it swell back. A gouge or scratch has cut or lost fiber, and steam can’t bring that back.
Run a fingernail over the mark. A dent is a smooth depression with the surface still intact. A gouge has a rough or torn bottom, or wood is missing.
What steaming does and doesn’t fix
Steaming can raise a dent on unfinished or lightly finished wood, especially softwood and a fresh dent. It won’t fix:
- Scratches, gouges or chips
- Dents in MDF, particleboard or laminate, which swell or delaminate when wet
- Old dents in compacted wood, which may rise only partly
Expect a partial result. Dense hardwoods and old dents often rise only a little, and several rounds of steaming may be needed to get the most out of the method.
Steaming a dent with a damp cloth and iron
- Prepare the area. On unfinished wood, you can work directly. On finished wood, see the next section first.
- Add a few drops of water to the dent, and let it soak for a few minutes so the fibers take it up.
- Cover the spot with a damp cotton cloth.
- Press a hot iron on a cotton setting over the cloth for a few seconds. Lift the iron and check the dent.
- Repeat until the dent stops rising. It often takes several cycles, so don’t overdo the heat or the water.
- Let it dry. Give the wood about a day before you judge the result.
For a small dent, a soldering iron tip or a small iron tip on a damp cloth gives more control. Keep the cloth damp, not soaking, and keep your fingers clear of the iron and the steam, since both can burn.
Dents in finished wood
A film finish, especially polyurethane, blocks water from reaching the wood. On finished wood, prick the finish inside the dent with a fine pin, or remove the finish locally, so the water can get in. Test on a hidden area first.
Steam often whitens shellac and lacquer, so plan on touching up the finish afterward. How to repair damaged wood finish covers removing white marks. The repair involves the finish as well as the wood.
When not to try it: veneer, MDF and laminate
- Veneer. Steam can loosen hide glue and blister veneer. If the dent is in veneer, use minimal heat or skip steaming. Veneer repair on antique furniture covers safer methods for lifted or damaged veneer.
- MDF, particleboard and laminate. These swell or delaminate with water, so don’t steam them.
- Fragile antique finishes. Test a hidden area before you apply any moisture or heat.
After the dent rises: sanding, touch-up and fill
Once the dent has risen and the wood has dried, sand the area lightly so it’s flush with the surrounding wood. If a shallow depression remains, fill it with a wax stick, burn-in stick or filler, then match the color and sheen. How to repair deep scratches in wood furniture covers the fill-and-color steps.
Give the wood time to dry before you sand, so you’re working on it at its normal size.