Guides

How to look after a wood deck

A wood deck needs little: cleaning twice a year and, if you want it to keep its colour, oiling once or twice a year. Without oil, the wood turns silver-grey without losing its strength.

4 min readUpdated: 10 November 2026

Cleaning

  • Sweep away leaves and soil, especially from the gaps between the boards, so water can drain.
  • Wash with water and an outdoor wood cleaner, using a soft brush.
  • Avoid using a high-pressure washer very close to the wood; it can raise the grain.

Oiling

  • Apply outdoor wood oil to clean, dry wood, in dry weather.
  • Apply a thin coat, then wipe off the excess so it doesn’t stay sticky.
  • For new tropical hardwood decks, wait a few weeks after installation to let the wood air out.

The grey patina

If you don’t oil it, the wood turns silver-grey within a few months. This is a natural process and does not affect its strength. If you change your mind, the colour can be brought back by cleaning with a special product and oiling.

Small cracks and stains

Dense tropical hardwood can develop small cracks on the surface and at the ends, especially in the first year. These are normal. In the first few weeks, some species can leave brown tannin stains on the paving underneath; these fade over time or wash off.

The spring check

  • Check whether any screws or clips have come loose.
  • Clear out the space under the deck so air can circulate.
  • Replace damaged boards in good time; we can also refurbish the deck for you.

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