Greenhill Timbers Composite decking has revolutionised the way Australians design and enjoy outdoor spaces. Combining the timeless aesthetic of natural timber with advanced engineering and sustainability, composite decking offers a superior alternative to traditional wood. Whether you’re building a backyard haven, a poolside retreat, or a commercial alfresco area, composite decking delivers durability, style, and minimal upkeep — all perfectly suited to Australia’s harsh climate.
What is Composite Decking?
Composite decking is a modern, eco-friendly material made from a blend of recycled wood fibres and plastic polymers. These ingredients are fused under high pressure to create robust, uniform decking boards that emulate the appearance of timber—without the maintenance issues of natural wood.
Most composite boards are capped with a protective polymer shell to enhance resistance to fading, scratching, staining, and moisture—making them perfect for the sun-soaked, weather-challenged landscapes across Australia.
Why Australians Choose Composite Decking
1. Long-Lasting Performance
Composite decking is built to last 25 to 50 years depending on the brand and quality. It withstands Australia’s UV exposure, heavy rains, and temperature fluctuations without warping, cracking, or fading.
2. Minimal Maintenance
Unlike timber, composite decking does not need staining, oiling, or sealing. Just a quick clean with water and a mild detergent keeps your deck looking as good as new.
3. Sustainable Materials
Most composite decking boards contain up to 95% recycled materials—including reclaimed timber and plastic—making them an environmentally responsible option for eco-conscious consumers.
4. Termite & Rot Resistant
With no organic core and a sealed surface, composite boards are impervious to termites, fungus, and rot—a crucial benefit in Australia’s pest-prone regions.
5. Fire-Rated Options
For areas prone to bushfires, many brands offer BAL 29 and BAL 40 fire-rated decking, providing peace of mind for rural and semi-rural homes.
Top Composite Decking Brands in Australia
Trex
One of the pioneers of composite decking, Trex offers premium-quality boards with a deep wood-grain texture, fade resistance, and a 25-year limited residential warranty.
ModWood
An Australian-made solution designed specifically for local climates, ModWood products are fire-rated, non-slip, and manufactured with up to 90% recycled content.
Ekodeck
A popular choice for DIYers and builders alike, Ekodeck offers affordable, robust decking that’s stocked at major retailers like Bunnings.
Futurewood
Known for its wide range of colours and customisable finishes, Futurewood is ideal for modern design projects where aesthetics matter just as much as performance.
Millboard
Offering the most timber-like appearance on the market, Millboard’s polyurethane-based composite boards are both luxurious and 100% wood-free.
Composite vs Timber Decking: A Practical Comparison
| Feature | Composite Decking | Timber Decking |
|---|---|---|
| Maintenance | Low | High – regular oiling/sealing required |
| Lifespan | 25–50 years | 10–15 years |
| Cost (Initial) | Higher | Lower |
| Cost (Long-Term) | Lower – less upkeep | Higher – maintenance adds up |
| Colour & Texture | Consistent and modern | Natural variation |
| Pest & Rot Resistance | Yes | No |
| Eco-Friendliness | High – uses recycled materials | Depends on source |
| Fire Resistance | Available with BAL ratings | Requires treatment |
Where Can You Use Composite Decking in Australia?
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Residential Decks: Backyards, courtyards, patios, balconies.
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Poolside Decking: Water-resistant and slip-rated boards for safe, stylish surrounds.
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Rooftop Terraces: Lightweight and UV-stable boards ideal for urban living.
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Commercial Spaces: Cafés, walkways, hotels, and restaurants requiring low maintenance.
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Bushfire Zones: BAL-rated composite boards offer fire resistance where timber cannot.
Design Flexibility with Composite Decking
Modern composite decking comes in a range of colours, grain patterns, and finishes that let you create a deck that complements your architecture and landscape.
Popular Design Options:
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Dual-tone boards for contrasting trims and borders
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Hidden fastener systems for a seamless finish
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Curved and grooved edges for custom shapes
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Matching screening and fencing products
Installing Composite Decking: Best Practices
Composite decking is typically installed on a steel or treated timber subframe using clips or screws designed specifically for composite boards.
Key Installation Tips:
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Follow manufacturer spacing guidelines to allow for thermal expansion
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Use stainless steel or galvanised fixings to avoid corrosion
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Ensure adequate ventilation underneath the deck
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Use starter/end clips for clean board finishes
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Install with a slight slope for water runoff
Always refer to your specific brand’s instructions for precise installation requirements.
How to Clean and Maintain Composite Decking
Maintenance is easy and hassle-free:
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Sweep regularly to remove leaves and dirt
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Clean spills promptly to avoid staining
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Use a soft brush and warm soapy water for deep cleaning
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Avoid abrasive tools or high-pressure cleaners
Most composite decking is resistant to mould, but routine cleaning will preserve colour and texture over time.
Cost of Composite Decking in Australia
Prices vary depending on the brand, profile, and finish, but generally range between $90–$160 per square metre (supply only). While this is higher than natural timber, the lower ongoing maintenance costs make it more economical in the long term.
Some premium boards with textured grain finishes and fire ratings may cost more, but offer better performance and longer warranties.
Final Verdict: Is Composite Decking Right for You?
If you’re seeking a stylish, hard-wearing, and eco-friendly solution for your outdoor living space, composite decking is the superior choice. It withstands the demanding Australian environment, offers modern aesthetics, and requires virtually no upkeep — freeing you to enjoy your deck instead of maintaining it.
Whether you’re a homeowner, builder, or designer, composite decking delivers the perfect blend of function, form, and sustainability.
