Timber Decking Cost in Melbourne (2026)
In Melbourne, the cold, damp climate makes a timber deck a real maintenance commitment, whatever the species.
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 Melbourne
A timber deck in Melbourne faces cold, wet winters, deep shade and a wide daily temperature swing that grey the boards, lift the grain and drive damp, rot and mould, so the species choice matters: durable hardwoods like spotted gum and merbau hold up far better than cheaper treated pine in this weathering, though they cost more upfront. Whatever the species, a Melbourne timber deck needs regular oiling and the occasional sand-back to stay sound, which is the real long-run cost.
The substructure has to answer the city's reactive clay, with footings engineered for the ground movement that would otherwise twist and rack a deck frame, and that clay-driven structural cost is the same whatever boards sit on top. The deep local trade pool keeps the carpentry competitive, so a straightforward timber deck is good value here against the eastern capitals. The trade-off against composite is the maintenance: cheaper to build, but the damp Melbourne climate makes the upkeep a recurring chore.
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.