The Best Timbers for Timber Decking in Brisbane

If you are building timber decking and you live in the Brisbane area, there are plenty of great choices for you. However, you do have to make sure you are using a timber that provides some degree of natural protection against termites, rotting and bushfires.

Here are our favourite timbers for timber decking.


We think Merbau, also known as Kwila, is the best timber to use for a timber deck for a variety of reasons. The first is appearance. Merbau is brown with a hint of orange when freshly cut. As it ages, it matures into a beautiful reddish brown colour. While you can paint a timber deck any colour you like, we think there is a lot to be said for timber whose natural colour is as attractive as Merbau.

Best Timbers for Timber Decking in Brisbane

Merbau has a durability rating of 1, meaning you can expect at least 25 years out of it under normal use. It is available in “standard” and “select” varieties.

ACQ Treated Pine

ACQ stands for Alkaline Copper Quaternary. It is a safe substitute for CCA, or Chromated Copper Arsenate, which is toxic and only safe for fencing. ACQ is a safe treatment that provides protection against fungus, bacteria and insects. While all pines are classified as “softwood,” treated pine is strong, easy to work with and doesn’t weigh as much as many hardwoods.

Pine is versatile because it readily absorbs deck oil, stain, paint and other finishes. It can also be a less expensive option than some hardwoods.

Select Pacific Jarrah

Select Pacific Jarrah is one of the more expensive timbers. It is the only timber we feel may be even more visually striking than Merbau. Jarrah varies from light to dark browns and reds. Like Merbau, it has a distinctive look and people who like Jarrah won’t settle for any other timber when building a new timber deck.

We always make sure our Pacific Jarrah comes from sustainable sources. It has top ratings in hardness and durability, making it less susceptible to rotting, termites and bushfires.


Ironbark is a dark red timber that is known for its hardness and density. The bad news is that if you are an amateur, it can be hard to work with. The good news is that it provides the most natural protection against rotting, insects and bushfires of any timber species. Not only is ironbark a favourite for timber decking, it is the most highly recommended timber if your deck is by a swimming pool.


Contrary to its name, Blackbutt is coloured pale brown bordering on blonde. Unlike many Australian timbers, Blackbutt tends to have a consistent colour. It is particularly high in the fire resistance scale. It does need to be sealed right away and resealed on a regular basis or it can crack. If you don’t like the light colour, Blackbutt takes staining very well.

Spotted Gum

Spotted Gum is another timber that is great for building in bushfire prone areas. It has a durability rating of 1 and is excellent for timber decking. It also provides plenty of resistance to rotting and termites. Spotted Gum can run from pale brown to chocolate brown. Due to its low tannin content, Spotted Gum doesn’t tend to “bleed” like a lot of our native timbers.

Narangba Timbers: Your Best Choice for Timber Decking in Brisbane

At Narangba Timbers, we have the best combination of timber decking materials and customer service in the Brisbane area. We have timber decking guides and a timber decking calculator online to tell you everything you need to help you build a timber deck that you can enjoy for years to come.

Best of all, we have a timber display deck at our showroom in Narangba. Our display deck has a variety of different timbers and finishes built into a deck so you can experience each timber and each finish in the most popular combinations.

If you would like to learn more or talk to our world class customer service staff, call us today: (07) 3888 1293.

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Posted in Jack's Blog, Timber Decking Brisbane