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Painting trim and doors: what to know

Trim and doors are touched every day. A hard finish and good preparation make all the difference.

November 9, 2026 · 4 min read

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Painting trim and doors: what to know

Key takeaways

  • A satin or semi-gloss finish resists marks better.
  • Sanding and degreasing ensure adhesion.
  • Let doors cure before handling.

Choosing the finish

A satin or semi-gloss finish cleans easily and resists fingerprints and knocks. It also sets trim off against flatter walls.

Preparing the surface

  • Degrease surfaces, especially around handles.
  • Lightly sand old varnish or glossy paint.
  • Repair small holes and scratches.
  • Prime bare wood and repairs.

Applying

  • Remove handles and hardware when possible.
  • Paint doors flat if you take them off, to limit drips.
  • Apply thin coats rather than one thick coat.
  • Sand very lightly between coats for a smooth finish.

Drying and curing

Paint can feel dry well before it has cured. Avoid slamming a door or stacking objects against fresh paint for the first few days.

Frequently asked questions

Can varnished trim be painted?
Yes, after degreasing, sanding and applying a suitable primer.
Why do doors stick after painting?
The paint has not finished curing or the coat is too thick. Allow time to cure and apply thin coats.

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