Sanding is the most dependable way to get varnish off wood, because it cuts through the finish without damaging the wood underneath [1]. It does take more hours than other methods, so on carved or curved pieces a chemical stripper or a scraper is usually the faster way to get varnish off [1]. You may also find this useful: Best Wood Glue for Furniture: 5 Picks for Builds and Repairs.
You may need to strip a piece because varnish yellows as it ages, or because a coat went on badly and has to be redone [2]. Sanding also leaves the surface smooth and ready for its next finish [1].
Below you’ll find four methods: sanding, chemical stripping, scraping and vinegar. You’ll also learn how to choose between them and how to prep bare wood so a new finish goes on evenly.
Sanding: the reliable choice for flat surfaces
Sanding is the most dependable way to take varnish off tabletops, doors and other flat panels, because you control exactly how much comes off. It earns its spot on this list since it needs no chemicals, though it does take more working hours than stripping. [1] It suits you if your piece is mostly flat and you’d rather deal with dust than fumes.
Work through the grits in order
Start coarse with 80 or 100 grit sandpaper. [3] A lower grit number means rougher paper, so it cuts through the varnish layers faster. [3] On a dresser top, for example, you’d stay at 80 or 100 until the shine is gone and you see bare wood everywhere.
Then step up to smooth out the scratches the coarse paper left. The most common grits you’ll find are 80, 120, 150 and 180. [1] Move to 120, then 150, and finish at 180 or 220. [1] Skipping a grit leaves marks from the previous paper that the finer one struggles to erase.
80 or 100 grit: removes the bulk of the varnish
120 and 150 grit: levels out coarse scratches
180 or 220 grit: leaves a smooth surface ready for the next step
Match the tool to the surface
Use a random orbit sander on tops and panels to speed up the job. [1] It covers wide, flat areas evenly and saves your arms on big pieces like a dining table.
Switch to hand sanding on edges, tight spaces and curves. [1] A sanding block or folded sheet lets you follow a rounded table edge or the inside corner of a drawer front without rounding over crisp lines.
Stay safe and protect the wood
Wear a dust mask and eye protection the whole time. Sanding varnish throws fine dust into the air, and it gets into your lungs and eyes quickly.
Keep the sander moving at all times. If you hold it in one spot, especially with coarse paper, it can dig a dip or gouge into the wood that’s hard to sand out later. Let the sander’s weight do the work instead of pressing down hard.
Chemical stripper for carved and curved pieces
Chemical stripper is the method to reach for when the varnish sits on spindles, turned legs, carvings or other curves that a sander can’t get into. Instead of grinding the finish off, the stripper softens it so you can lift it out of grooves and around details by hand.
Best for: chair spindles, stair balusters, carved trim, curved arms and moldings
Why it’s on the list: it follows every contour, so you keep crisp details that sandpaper would round over
Who it suits: anyone refinishing detailed or antique pieces who prefers patient handwork to power tools
Trade-off: it’s slower and messier than sanding a flat top, and it usually takes more than one pass on deep details
How it works
The process is apply, wait, lift. Brush the stripper onto the spindle with an old paintbrush, or spray it on if you bought it in an aerosol can [4]. A cheap brush you can throw away works well because it pushes the product into crevices.
Next, give the stripper time to soften the finish. Let it work for 10 to 20 minutes, then scrape it off with a wire brush before it dries out [4]. If it dries on the wood, the softened varnish hardens again and is harder to remove, so work in sections small enough to clear while the stripper is still wet.
Carvings and turned beads usually hold onto some finish after the first round. Put a second coat of stripper on any crevices and features that still look dark [4]. For example, on a turned chair leg you might clear the smooth sections in one pass and need a second round only in the rings and coves.
Reading the label
Every stripper is a little different, so the can’s directions decide the details. Wait the recommended period of time listed in the stripper’s directions rather than guessing [4]. The label also tells you what ventilation and gloves the product calls for. Set up your work area and put on that gear before you open the can.
Scraping softened or thick varnish
Scraping is the fastest way to lift varnish that is already soft or sitting in a thick layer. Instead of grinding it into dust, you peel it off in curls or ribbons. It earns its place on this list because it pairs naturally with stripping: once a stripper has softened the finish, a scraper is the tool that actually removes it.
It suits you if you are working on a piece with a heavy, gummy, or built-up coat, or if you want to cut down on the amount of sanding a large surface will need.
How to scrape without damaging the wood
The technique matters more than the tool. Keep these points in mind:
Pull with the grain. Draw the scraper along the direction of the wood fibers, never across them. Cross-grain strokes tear fibers and leave scratches that are hard to sand out.
Hold it at a low angle. Tilt the blade so it rides almost flat, around the angle you would use to spread butter. A steep angle digs in; a low one shaves the softened varnish off the top.
Use light, steady passes. Let the softened finish come off on its own. If you have to bear down hard, the varnish is not soft enough yet.
Clear the blade often. Wipe the gunk off the edge between passes so it does not smear back onto the wood.
Pick a plastic scraper for softwood
On pine, fir, cedar, and other softwoods, use a plastic scraper rather than a metal one. Softwood dents and gouges easily, and a sharp steel edge can carve a groove in a single careless stroke. A plastic scraper has enough bite to lift softened varnish but gives way before it cuts into the wood.
You can save a metal scraper for harder woods like oak or maple, where the surface stands up better to a firmer edge.
Finish with fine sanding
Scraping rarely leaves a perfectly even surface. You will usually see faint ridges, small patches of leftover finish, or slightly raised grain where the scraper passed.
A light pass with fine sandpaper evens all of that out. Finish with 220-grit sandpaper to even out the wood’s surface before moving on to refinishing. [2]
Vinegar: a gentle option for thin finishes
Vinegar is the mildest way to lift varnish, and it makes sense when the finish is already thin, worn or flaking. It won’t cut through several thick coats the way sanding or a stripper will. For a tired tabletop or an old chair where the varnish has mostly worn away, it can save you a lot of dust and harsh fumes.
Why it’s on the list:
It’s a natural product you probably already have in your kitchen. [5]
No power tools and no harsh chemicals, so it’s easy to try first.
It suits light jobs on thin or worn finishes, not heavy buildup.
Test a hidden spot first
Before you treat the whole piece, try the vinegar on a small area that won’t show, such as the underside of a tabletop or the back of a drawer front. This tells you whether the vinegar damages the wood. [5] If the test spot looks discolored or rough after it dries, switch to another method.
How to remove varnish with vinegar
Soak a cloth. Pour full-strength vinegar into a bowl and soak a clean cloth in it. [5]
Let it sit. Lay the soaked cloth over the varnished area and leave it for several minutes so the vinegar can work on the finish. [5] On a larger surface like a dresser top, work one section at a time so the cloth stays wet.
Scrub. Lift the cloth and use a scrub brush to work the softened varnish off. [5] A stiff nylon brush works well on flat areas, and an old toothbrush helps in corners.
Wipe. Wipe the surface with a damp cloth to pick up loosened finish and leftover vinegar. [5]
Buff dry. Finish by buffing the wood dry with a soft cloth to remove any residue. [5]
Repeat the soak-and-scrub cycle on stubborn patches. If a spot still holds a glossy layer after two or three passes, the finish is too thick for vinegar, and that area is better handled by sanding or a stripper.
Who it suits
Vinegar is a good fit if you’re refreshing a piece with a light, worn finish and want to avoid fumes or dust indoors. It’s less useful on furniture with heavy, intact coats of varnish.
How to prep bare wood for a new finish
Before any new finish goes on, the bare wood needs a final sanding pass at fine grit and a completely clean surface. Skip either step and the stain or clear coat will show it, with blotches, rough spots or specks trapped in the film.
Finish sanding at 180 to 220 grit
End your sanding at 180 or 220 grit, whatever method you used to get the varnish off. A final pass with P220 grit sandpaper is a common choice for finishing work after the old varnish is gone [1]. Think of it as the step that turns “stripped” wood into “ready” wood.
Work across the whole piece, not just the spots that look rough. For example, on a stripped tabletop, sand the entire top and the edges with the same final grit. Mixing a 120-grit edge with a 220-grit top can make the edge soak up stain darker.
Always sand with the grain on the final pass. Cross-grain scratches that you barely notice on bare wood often jump out once stain or oil goes on. Related reading: What Wood Is Best for a Cutting Board? Species, Grain and Glue.
Why even sanding matters
Even sanding smooths the surface of the wood so it is ready for its next use [1]. That matters because a finish copies whatever is under it. A smooth, uniform surface takes stain and clear coat at the same rate everywhere, so the color stays consistent and the topcoat lays down flat.
Uneven spots tell on you. A patch you sanded harder than the rest can look lighter or shinier, and a leftover bit of old varnish will repel stain and leave a pale island.
Remove all dust and stripper residue
Clean the wood completely before you open the finish can. Sanding dust mixes into wet finish and dries as tiny bumps, and stripper residue can keep a new coat from bonding or drying properly.
A simple cleanup routine:
Vacuum the piece with a brush attachment, including corners, carvings and pores in open-grain woods like oak.
Wipe it down with a tack cloth or a lightly dampened lint-free rag.
On chemically stripped pieces, wipe off any remaining residue as the stripper label directs, then let the wood dry fully.
Run your hand over the surface; it should feel smooth and leave no dust on your palm.
Once the surface is clean and dry, apply your first coat right away so new dust doesn’t settle on it.
Picking your method
Match the method to the piece in front of you, and you’ll save hours of frustration. Here’s the quick way to decide:
Flat tops, panels and drawer fronts: sand them. A random orbit sander does the heavy lifting on broad surfaces, while tight spaces and curves still need hand sanding. [1]
Carved legs, spindles and curved trim: strip and scrape. Brush on the stripper, let it soften the finish, then lift the varnish away. [5]
Thin or worn finishes: try vinegar first, since it’s the gentlest option. [5]
Your next step: look at your piece, decide which of these three it is, and gather supplies for that method before you start.
