Deck Cost in Sydney (2026)
In Sydney, sloping rocky blocks and bushfire rules shape a deck more than the decking boards.
Your deck details
Approximate deck size in square metres.
Your estimate sits within the typical range.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- Treated pine is cheapest; keeping the deck ground-level avoids balustrade costs.
- Skip the roof/pergola over the deck unless you need year-round shade.
or from $36/week over 5 years , indicative finance
How we estimate this
A deck in Australia typically costs $200–$350 per square metre in 2026 for the deck itself, depending on material. Treated pine is cheapest, hardwood mid-range, and composite the most expensive but lowest-maintenance.
Pricing reviewed: June 2026.
What a deck costs in Sydney
Many Sydney blocks slope, so a deck is often elevated on a substructure of posts and bearers, and the higher and more complex that structure, the more it costs, frequently more than the decking surface on top. Footings into sandstone and rock are slow and dear, and tight access can make the build harder. On the bushfire-prone fringes, bushfire-rated (BAL) construction may be required, which dictates the decking material and the detailing and rules out the cheapest options.
Sydney's high labour rates sit on top. Hardwood decking is popular for its durability and looks, with composite a lower-maintenance alternative. For a low deck on a flat, accessible block the price is competitive, but the substructure on a sloping rocky site and any bushfire requirement are what move a Sydney deck quote well above the national figure.
Compare against the national picture: Deck Cost in Australia →
Deck Cost in other cities
Frequently asked questions
How much does a deck cost per square metre in Australia?
Decks typically cost $200–$350/m² in 2026. Treated pine is cheapest, hardwood mid-range, and composite the most expensive but lowest-maintenance.
Is composite decking worth the extra cost?
Composite costs more upfront but needs no oiling or staining and lasts longer, so it can work out cheaper over time. It suits people who want minimal maintenance.
Do I need council approval for a deck?
Low ground-level decks are often exempt, but elevated decks usually require approval. Rules vary by state and council, check before building.