Big news for builders, architects and homeowners across Australia — Trex composite decking has officially achieved CodeMark certification (Certification No. CM70206), making it one of the only composite decking products in Australia to carry this nationally recognised building product certification.
At 5 Star Decking, we’ve been installing Trex for years and have always believed in its quality. Now, with CodeMark certification, specifying and building with Trex in Sydney and across NSW is easier, faster and more straightforward than ever before.
What Is CodeMark Certification?
CodeMark is Australia’s nationally recognised building product certification scheme, administered under the National Construction Code (NCC). When a product earns CodeMark certification, it means an independent, accredited body has verified that the product meets the requirements of the NCC.
For homeowners, this means peace of mind. For builders and certifiers, it means faster approvals and less paperwork. For architects, it means simpler specification with verified compliance.
What Does This Mean for Your Decking Project?
If you’ve been considering Trex for a new deck — or if you’re a builder or architect specifying materials for a residential or commercial project — CodeMark certification changes the game in several important ways:
- Simplified specification — Trex can now be specified with confidence, with streamlined project documentation and easier product approval.
- Faster council and certifier approvals — CodeMark certification reduces delays in the design and construction process. No more back-and-forth with certifiers questioning product compliance.
- Reduced project risk — Independently verified compliance gives builders and certifiers the confidence they need from concept to completion.
- Greater confidence for homeowners — You know exactly what you’re getting: a product that has been independently tested and verified to meet Australian building standards.
Why Trex Was Already the Smart Choice
CodeMark certification is just the latest milestone for a product that has been leading the composite decking industry for decades. Here’s why Trex has been our go-to recommendation at 5 Star Decking:
95% Recycled Materials
Trex is made from 95% recycled wood and plastic — the equivalent of 450 million recycled shopping bags every year. It’s one of the most environmentally responsible decking choices you can make without compromising on performance or aesthetics.
Zero Maintenance
Unlike hardwood timber decking, Trex never needs sanding, oiling, staining or painting. An occasional hose down is all it takes to keep it looking brand new. Over the life of the deck, this saves Sydney homeowners thousands of dollars in maintenance costs.
Industry-Leading 25-Year Warranty
Trex backs its product with a 25-year limited residential warranty covering fade, stain and structural performance. This is one of the strongest warranties in the composite decking market — a true reflection of the product’s quality and longevity.
Built for the Australian Climate
Sydney’s weather is no joke — intense UV exposure, salt air near the coast, and summer downpours. Trex is engineered to handle all of it. The capped composite construction resists fading, staining, scratching and mould, making it ideal for Sydney’s coastal and suburban environments alike.
Stunning Range of Colours and Finishes
Trex offers a range of premium collections — Transcend®, Select® and Enhance® — each available in multiple colours and finishes that replicate the warm, natural look of timber without any of the upkeep. Whether you’re after a classic grey coastal look or a rich warm brown, there’s a Trex option to suit your home.
Trex CodeMark Certification Details
| Certification Number | CM70206 |
| Certification Scheme | CodeMark Australia |
| Applicable Code | National Construction Code (NCC) |
| Product | Trex Composite Decking |
Specifying Trex for Your Next Project?
Whether you’re a homeowner planning a new outdoor entertaining area, a builder working on a residential development, or an architect specifying materials for a commercial project — Trex is now the easiest and most compliant composite decking choice in Australia.
At 5 Star Decking, we are Sydney’s specialist Trex installers. Our team has years of experience working with the full Trex range across Eastern Suburbs, Inner West, North Shore, and beyond. We handle everything from design and quoting through to installation and finishing.
Call us on 0433 334 415 or get a free quote online — and ask to see the Trex sample range in person.
