Using Solid Wood in Bathrooms: Installation, Finishing & Care Guide
Solid wood works well in bathrooms—but only if it’s properly finished and installed.
All of our products are supplied unfinished, so it’s important to treat them correctly before use.
Choosing the Right Wood
Some woods handle moisture and humidity better than others.
Oak → Strong, stable, and the most commonly used option
Walnut → Slightly more stable with a darker finish
All solid wood will react to humidity, but these options perform well when properly finished.
First: You Must Finish the Wood
Bathrooms are high-moisture environments.
Untreated wood will absorb moisture, which can lead to staining, movement, or damage over time.
Before installing, you should:
- Apply a protective finish (oil or varnish)
- Treat all sides, including the underside and edges
- Apply multiple coats as recommended
For bathrooms, a moisture-resistant finish is essential.
Installation Matters
Keep Away from Direct Water
- Avoid placing wood where it will be regularly soaked
- Not suitable for inside showers or wet zones
- Around sinks, prevent water from sitting on the surface
Allow for Natural Movement
Wood expands and contracts with humidity.
- Leave small gaps in tight spaces (like alcoves)
- Avoid fixing the wood too tightly on all sides
Use the Right Fixings
- Make sure fixings are suitable for your wall type
- Floating shelves must be securely fixed into solid walls or studs
- Deeper or heavier shelves need stronger support
Day-to-Day Care
- Wipe away water—don’t let it sit
- Clean with a damp cloth (not soaking wet)
- Avoid harsh chemical cleaners
Ongoing Maintenance
- Oiled finishes will need reapplying over time
- High-use or high-moisture areas may need more frequent maintenance
In Short
- Always finish the wood before use
- Keep it away from constant water exposure
- Install it properly and maintain it over time
Updated on: 31/03/2026
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