timber decking

Decking has a tough gig. Not only does it have to withstand spilled drinks, barbeque fat and bad conversation, if it’s not under cover then it also has to endure the extremes of the Australian climate. We provide a selection of Australia’s finest hardwoods in all suitable classes for decking purposes. Below are some examples of our decking in action.

choosing a timber species for your decking

In order for a deck to perform well and with maximum longevity, choosing the appropriate species is crucial.  Considerations that will determine the most appropriate species for your decking include:


  • the location of the property; is it in a bushfire prone location?
  • the aspect of this area; is it north facing?
  • will the decking be undercover?

Bushfire Attack Level (BAL)

If your property is located in a bushfire prone area (BPA), it will be assessed and assigned an appropriate bushfire attack level (BAL) rating.  Timbers used in your construction must meet the AS 3959-2009 (Australian Standards of Construction of Buildings in Bushfire Prone Areas) for your BAL rating.

Bushfire attack level chart Victoria

Aspect and Exposure

If you do not live in a bushfire prone area, aspect and exposure are the determining factors for your choice of decking/species. Exposed decking requires a species that is rated as a class 1 or 2 durability timber whereas undercover decking can use a class 2-4 durability timber. A complete list of species including their class and durability ratings can be found on our resources page or contact us for assistance in selecting the right species for your decking requirements.

Best species for timber decking australia

available sizes

We specialise in the supply of recycled mixed Victorian hardwood decking in sizes 80x26mm and 100x26mm. This product includes species within classes 2, 3 & 4.


Our recycled decking can be finished clean dressed or grey face with the standard pencil round.


We also stock all standard new timber decking boards from 86x19mm through to 135x32mm.

decking finishes and maintenance

No matter where you live or the species you choose, your decking will need oiling and maintenance to ensure it looks and performs its best.


Tinted oils offer increased protection to timber decking in the same way a high SPF sunscreen gives you better protection from sunburn. Lighter toned timbers will silver off and weather much faster than darker toned timbers. With this in mind, all decking timbers benefit greatly from using tinted oils, in particular the lighter toned species. Clear oils can be applied to all timber decking and will require more frequent applications to keep them looking their best.


We carry the full range of OSMO products including clear and tinted decking oils that offer UV Protection.