Composite Decking Cost in Brisbane (2026)
In Brisbane, termites and subtropical weathering are the strongest case for composite over timber decking.
Your composite decking details
Your estimate sits within the typical range.
Composite costs more than timber upfront but needs no oiling or staining, over 10 to 15 years it usually works out cheaper to own.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- Keep the deck shape simple and rectangular, angles and curves waste boards and add labour.
- A ground-level deck avoids the cost of a tall sub-frame, balustrade and steps.
or from $33/week over 5 years , indicative finance
How we estimate this
Composite decking in Australia typically costs $250 to $480 per square metre supplied and installed in 2026, so a 20m² deck lands around $5,000 to $9,500. Board tier, deck height and extras like railings drive the range.
Pricing reviewed: October 2026.
What a composite decking costs in Brisbane
Brisbane's high termite pressure is the single best argument for composite decking here: the boards themselves are not a termite food source the way timber is, and on the elevated Queenslander decks that define the city, a composite surface over a protected steel or treated frame sidesteps a real local risk. The subtropical humidity, intense UV and storm-season downpours also weather a timber deck hard, greying and splitting it, so composite's resistance to all three is a genuine draw rather than just a finish preference.
The substructure still matters and still needs termite-smart detailing, treated or steel bearers and joists and proper clearance, especially on a raised Queenslander, and that framing cost is similar whatever the boards. Labour sits around the national baseline with a strong supply of deck builders, so composite work is more affordable here than the southern capitals at comparable scope. The UV does fade some cheaper composite over time, so a quality, colour-stable board is worth the spend in the strong Brisbane sun.
Compare against the national picture: Composite Decking Cost in Australia →
Composite Decking Cost in other cities
Frequently asked questions
How much does composite decking cost per m² in Australia?
Typically $250 to $480 per square metre supplied and installed in 2026, depending on board tier and deck height. A raised deck costs more due to the larger sub-frame.
Is composite decking cheaper than timber?
It costs more upfront but needs no oiling or staining, so over 10 to 15 years composite is usually cheaper to own than timber once maintenance is counted.