Best Way to Remove Varnish From Wood Furniture

Removing varnish from furniture — to refinish, repaint, or restore bare wood — has the same general options covered for stripping paint off wood, but a few considerations specific to furniture (detail, joints, the wood's value) affect which method makes the most sense for a given piece.

1. Chemical stripper — generally the most reliable choice for furniture with detail

1. Apply a furniture-grade chemical stripper (citrus-based options are lower-odor)
   per the label's instructions, usually a thick coat
2. Let it sit for the specified dwell time — long enough to soften the varnish
   without letting the stripper itself dry out
3. Scrape away softened varnish with a plastic putty knife or scraper (avoid metal,
   which can gouge the wood)
4. Use a stiff brush or fine steel wool to work stripper into carved details,
   corners, and joints
5. Wipe down with the recommended cleanup solvent (often mineral spirits or
   denatured alcohol, per the specific stripper's instructions)
6. Allow to dry fully before sanding or refinishing

Chemical stripper reaches into carved details, moldings, and tight joints far more effectively than sanding or heat can, which is exactly why it remains the standard recommendation for furniture with any real detail, rather than a flat, simple surface.

2. Heat gun — fast on flat areas, riskier around detail and veneer

As covered for stripping paint generally, a heat gun softens varnish for scraping relatively quickly on flat surfaces — but it carries real scorch risk if held too long in one spot, and is particularly risky on veneered furniture, where excess heat can damage or loosen the thin veneer layer along with the varnish sitting on top of it.

3. Sanding — works, but slow and less practical on detailed pieces

Sanding removes varnish effectively on flat, simple surfaces but is considerably more labor-intensive on anything with carved detail, and risks rounding over crisp edges or details that a chemical stripper would preserve more faithfully. It's a reasonable choice specifically for simple, flat-surfaced furniture where detail preservation isn't a major concern.

4. Test for lead-based finishes on older pieces

Furniture predating 1978 may have a lead-containing finish underneath later varnish layers — as covered for testing painted surfaces generally, a lead test kit is worth using before sanding an older piece specifically, since dry-sanding a lead-containing finish creates hazardous dust regardless of whether the top layer is varnish or paint.

5. Consider the piece's value before stripping

For a genuinely antique or valuable piece, stripping the original finish can meaningfully reduce its value to collectors, who often prize original, aged finishes even with some wear — getting an appraisal or expert opinion before stripping anything potentially valuable is worth doing, since this is a one-way decision the same way removing paint from brick is.

6. After stripping: neutralizing and prepping for the new finish

Once varnish is fully removed, a light final sanding (fine grit, following the wood grain) smooths the surface and removes any remaining residue before applying a new finish — whether that's new varnish, paint, or a stain, the bare wood is now ready for whatever finishing process the project calls for, following the same wood-prep principles covered elsewhere for bare wood generally.