When it comes to choosing a material for your deck in Perth, it’s not just about how it looks on day one. You want something that handles the WA sun, doesn’t warp or rot, and won’t have you spending every other weekend sanding or oiling. So what is composite decking exactly, and is composite decking worth it?
Let’s unpack the facts behind composite decking, especially for homeowners across Perth looking for something that lasts.
What is Composite Decking?
Composite decking is a type of engineered board made from a mix of recycled wood fibres and plastics, pressed and bound together to form long-lasting decking planks. The result? A surface that mimics the look of timber, but outperforms and is tougher than timber.
Most composite boards in Australia are ‘capped’, meaning they have a hard-wearing outer shell to resist UV, moisture, and stains. Brands like Permatimber, NewTechWood and Eva-last are commonly used here, and many of them are built specifically with the Australian climate in mind.
Why Perth Homeowners are Choosing Composite Over Timber
Timber still has its place, but more people are asking is composite decking worth it because of the balance between appearance, longevity and low maintenance. Here’s how they compare the two options stack up:
Maintenance: Composite decking only needs an occasional hose-down. There’s no sanding, oiling or sealing. Natural timber requires annual maintenance to prevent cracking, warping or fading.
Durability: Composite boards resist moisture, rot, and termites – a big win in Perth’s dry summers and coastal environments. Timber, especially softwoods, can rot and warp quickly without proper care.
Looks: Modern composite decking comes in a wide range of colours and wood-look textures. You can get a finish that mimics jarrah or spotted gum without the upkeep.
Price: Upfront, timber is often cheaper per metre. But factor in oiling, repairs and potential replacements, and composite becomes more cost-effective over 10–15 years.
See real-world examples of composite decking in local projects via Renewscape’s gallery.
How Well Does Composite Decking Suit Perth’s Climate?
Perth warm summers and close proximity to the coast, makes it a beautiful place to call home, but its unique climatic conditions can be harsh on untreated timber. The dry heat, direct sunlight and salty air can cause boards to crack or fade quickly. Composite decking is designed to thrive in these specific conditions.
For example, ModWood decking includes UV inhibitors and resins that protect boards from fading and damage. Unlike timber, composite won’t splinter or expand in wet weather. This makes it ideal for areas near pools, coastal suburbs, or homes that get full sun.
Is Composite Decking Worth It Over the Long Term?
One of the biggest factors to consider is how the material performs over the lifespan of the deck. While timber may seem like the cheaper option at the start, there’s a trade-off.
Let’s break down the long-term cost:
| Timber | Composite | |
|---|---|---|
| Upfront Cost | Lower | Higher |
| Annual Maintenance | Medium–High | Low–None |
| Lifespan | 10–15 years (with upkeep) | 20–25 years (low maintenance) |
| Visual Wear | Fades, cracks, splinters | Retains colour, no splinters |
If you’re planning to stay in your home for the next decade or more, or you’re building with resale in mind, composite decking often delivers better value.
What Do You Need to Know Before Choosing Composite Decking?
Here are a few things to consider if you’re leaning toward composite:
Subframe compatibility: Composite boards often work best with steel or treated timber subframes. Make sure your installer understands the material tolerances and spacing.
Thermal expansion: Composite expands and contracts more than timber. Boards should be installed with spacing that accounts for this, especially in Perth’s heat.
Colour choice: Lighter shades tend to stay cooler underfoot. This can make a big difference if your deck gets full afternoon sun.
You can check the installation requirements directly from leading suppliers like NewTechWood, who publish technical specs tailored to Australian standards.
How Long Does Composite Decking Really Last?
Most major brands back their products with warranties ranging from 10 to 25 years. For example:
NewTechWood UltraShield: 25-year residential warranty
ModWood: 10-year residential warranty
- Eva-last: 25-year limited warranty
These warranties typically cover issues like fading, splitting and structural damage under normal residential use. With correct installation and minimal care, a composite deck in Perth can easily outlast a timber one.
Composite Decking and Sustainability
Another reason many Perth homeowners are switching is the sustainability factor. Composite decking is often made using recycled plastics and reclaimed wood, making it a more environmentally friendly option than freshly milled timber.
For example, NewTechWood’s boards are made from 95% recycled materials, including plastic film and reclaimed wood fibres. Choosing composite over virgin timber helps reduce demand for logging, while giving new life to waste materials.
Frequently Asked Questions About Composite Decking
Does it get hot in the sun?
Yes – but so does timber. Lighter-coloured composite boards tend to stay cooler. It’s worth choosing a finish that suits your sunlight exposure.
Can I use it around pools?
Absolutely. Many composite products meet Australian slip resistance standards and won’t rot or splinter when wet.
What about scratches or marks?
Composite is resistant to everyday wear, but dragging heavy furniture can still leave marks. It’s best to use protective pads or lift instead of drag.
Can I install it myself?
Some systems offer DIY-friendly installation, but for best results in Perth’s heat, it’s worth hiring a professional who understands correct gapping and fixings.
What is Composite Decking: Final Thoughts
Composite decking is more than just a low-maintenance alternative – it’s a long-term investment in your home’s value and livability. If you’re asking what is composite decking and is composite decking worth it, the answer for many Perth homeowners is a confident yes.
While the upfront cost might be a bit higher, the time saved on maintenance, combined with its weather resistance and clean look, often makes it the smarter choice. If you want to see colours and finishes in person, you can always stop by the Renewscape showroom in Port Kennedy to chat through your options.
