Timber Decking Cost in Sydney (2026)
In Sydney, hardwood species choice and bushfire rules shape a timber deck as much as the frame beneath it.
Your timber decking details
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Hardwood decks need oiling every one to two years to stay looking good and resist greying, factor the ongoing cost in, not just the build.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- Treated pine costs far less if you are happy to oil it and accept a shorter life.
- A simple rectangular, ground-level deck is the cheapest to build.
or from $29/week over 5 years , indicative finance
How we estimate this
Timber decking in Australia typically costs $200 to $400 per square metre supplied and installed in 2026, so a 20m² deck is roughly $4,000 to $8,000. Treated pine is cheapest, hardwoods like merbau and spotted gum cost more.
Pricing reviewed: October 2026.
What a timber decking costs in Sydney
Sydney timber decks lean toward durable Australian hardwoods such as spotted gum, blackbutt and ironbark, prized for their look and their resistance to the humid summers and the salt in the eastern suburbs, and on bushland-adjacent fringes the bushfire (BAL) rules can require a bushfire-resisting timber species, narrowing the choice and lifting the board cost. The species decision is a real driver here, since a premium hardwood costs well above treated pine but lasts and weathers far better in the climate.
Beneath the boards, Sydney's sloping rocky blocks and sandstone footings make levelling the frame over rock or a fall-away site the hard, costly work, unchanged by the species on top. The highest-in-the-country labour rates fall on the framing and the careful laying a quality hardwood deserves. And timber here is a maintenance commitment: the humid summers and coastal salt grey and weather an un-oiled deck fast, so the lower upfront cost against composite is offset by a lifetime of oiling and the occasional board replacement.
Compare against the national picture: Timber Decking Cost in Australia →
Timber Decking Cost in other cities
Frequently asked questions
How much does timber decking cost per m² in Australia?
Typically $200 to $400 per square metre supplied and installed in 2026. Treated pine is cheapest; merbau and premium hardwoods cost more.
How often does a timber deck need oiling?
Most hardwood decks need oiling every one to two years to resist greying and wear. Treated pine needs similar upkeep and has a shorter outdoor life.