Timber Decking Cost in Darwin (2026)
In Darwin, termites, tropical rot and cyclone fixing make a timber deck a demanding build.
Your timber decking details
Your estimate sits within the typical range.
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 $28/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 Darwin
A timber deck in Darwin faces extreme humidity, wet-season saturation and intense termite and decay pressure, so the species and treatment are critical: only a naturally durable, termite-resistant hardwood or properly treated timber stands a chance, and even then the tropical climate weathers and attacks timber faster than anywhere else, making upkeep a constant commitment. A susceptible timber here is a short-lived liability, so the material has to be chosen for the climate first.
The frame has to meet cyclone-rated tie-down and fixing requirements, which lift the structural cost beyond a mild-climate deck, and the aggressive tropical corrosion demands corrosion-resistant fixings. Remoteness is the dominant cost: durable hardwood is scarce and dear this far north, with freight and lead time, and the small trade market keeps labour high. Timber is traditional and warm underfoot, but in Darwin's climate the termites, rot and cyclone fixing make it a demanding, costly deck to build and keep.
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.