Decking Oils

Coloured and clear oils for timber decks from Osmo. Transparent, satin, high quality wood finishes based on natural oils. They are designed to meet the demands of exposed, exterior decking timbers.

Available in 9 attractive timber tones plus clear. 

The names of some of the colours have been changed to reflect timbers that are known in NZ. For example Bangkirai 006 is now Light Cedar 006, and Massaranduba 014 is now Chestnut 014. To avoid any confusion when ordering, please quote the product code for the colour you require.


Coverage is approximately 20 square metres per litre on new dressed hardwoods. On new softwoods such as treated pine, coverage will be approximately 10-12 square metres per litre. Coverage rates on old weathered timbers will be much less.

Because of the strength of the UV in NZ, two coats of coloured Decking Oil is recommended. Rejuvenation should only be one coat. 

Osmo's clear Decking Oil 007 has no UV resistance and a recoat may be needed every 3-4 months. Clear Decking Oil 007 is not recommended for use in fully exposed weather situations. It is more suited for exterior decking which is under a cover such as a pergola etc, or is fully protected from the elements such as an outdoor room.

Osmo's Decking Oils are easy to apply, maintain and rejuvenate. In full weather conditions, a rejuvenation coat would be required every 18-24 months, based on an initial 2 coat application of a coloured oil. Where the deck is protected by a roof, or is not in full weather, recoat should be every 2-3 years, or possibly longer.

To rejuvenate the finish, the timber should first be cleaned with a good timber cleaner such as Osmo's Power Gel. Once the surface is clean and dry, one coat of Osmo Decking Oil should be applied.


Can Sizes / Approximate Coverage

  • 750ml      8 sqm with 2 coats
  • 2.5 litres  25 sqm with 2 coats
  • 10 litres   100 sqm with 2 coats (10 litre cans are not available in all colours)