It is the most common question our deck builders get asked during site visits: “Should I stick with traditional timber, or is it time to switch to composite?”

In Sydney, where we face scorching summers, high humidity, and coastal salt spray, the choice isn’t just about looks—it’s about longevity. A deck that lasts 20 years in a dry climate might rot in five years in a damp, shady backyard on the North Shore.

As experienced deck builders in Sydney, we believe there is no “wrong” choice, but there is definitely a right choice for your specific lifestyle.

Here is our honest comparison to help you decide.

1. Aesthetics: Natural Look vs. Modern Uniformity

For many homeowners, the decision starts and ends with the “look.”

Timber Decking

Nothing beats the authentic warmth, smell, and unique grain of natural wood. Timber decking in Sydney is a classic choice, particularly utilizing Australian hardwoods like Merbau, Spotted Gum, or Blackbutt.

• The Pro: Every board is unique. The natural variation adds character that even the best plastics can’t perfectly replicate.
• The Con: Without regular oiling, that rich red or brown colour will fade to a silver-grey within 12 months. (Though, some coastal homes in Manly or Bondi actually prefer this “weathered” driftwood look).

Composite Decking

Gone are the days when Composite Decking looked like shiny plastic. Modern “capped” boards from top brands like Trex, Ekodeck, and Millboard feature high-definition wood grain patterns that are incredibly realistic.

• The Pro: You get a uniform colour that doesn’t fade. If you want a sleek “Charcoal” or “Hamptons Grey” deck to match your modern home, composite delivers it perfectly.
• The Con: It is consistent—sometimes too consistent. If you love the knots and imperfections of real wood, composite might feel too “perfect” for you.

2. Maintenance: The “Weekend Test”

This is often the deciding factor for busy families. Ask yourself: Do I want to spend my Saturday enjoying my deck, or sanding it?

• Timber: Requires commitment. To keep timber decking in Sydney looking fresh, you need to clean and oil it every 6–12 months. If you neglect it, the timber can split, cup, or rot, eventually requiring expensive repairs.
• Composite: This is the “set-and-forget” option. It requires no sanding, no oiling, and no painting. A simple wash with warm soapy water (or a light pressure clean) once a season is all it takes to keep it looking brand new.

Winner: For low maintenance, Composite Decking wins hands down.

3. Heat & The “Barefoot Factor”

Sydney summers can hit 35°C+, so the temperature of your deck matters—especially if you have kids or pets.

• Timber: Wood is a natural insulator. Even in direct sun, hardwoods like Spotted Gum generally remain cooler underfoot than most man-made materials.
• Composite: Early generations of composite got scorching hot. However, new technology has improved this.
  • Pro Tip: If your deck faces North or West and has no roof, we recommend choosing a lighter colour composite board (like a light grey or oak). Dark charcoal composite boards can still get uncomfortably hot in direct mid-day sun.

4. Durability & Lifespan

How long will your investment last against termites and rot?

• Timber: A well-maintained hardwood deck can last 15–20 years. However, if you are in a bushfire-prone area or a damp suburb, timber is susceptible to rot and termite damage.
• Composite: Most quality brands come with 25-year warranties. They are impervious to rot, resistant to termites, and will not splinter. This makes Composite Decking an excellent choice for families with young children who run around barefoot.

5. Cost Comparison

This is where the confusion often lies.

• Upfront Cost: Timber (especially Treated Pine) is generally cheaper to install initially. Hardwoods are mid-range. Composite Decking usually has a higher upfront material cost.
• Long-Term Value: When you factor in the cost of buying decking oil ($200+ per year), sandpaper, and the value of your own labour over 10 years, composite often ends up being the cheaper option in the long run.

The Verdict: Which Should You Choose?

As your local sydney decking experts, here is our final advice:

Choose Timber if:

• You are on a stricter initial budget.
• You love the natural, organic look and don’t mind the maintenance ritual.
• Your deck is in full, direct sun all day and you want the coolest surface possible.

Choose Composite if:

• You want a “low maintenance” lifestyle and hate sanding.
• You plan to stay in the home for 10+ years and want a deck that looks new in 2036.
• You live in a bushfire zone (many composites have high BAL ratings).

Still Unsure? See the Samples.

Reading about it is one thing; feeling the difference is another.

At Sydney Decking Solutions, our deck builders carry samples of both premium Australian Hardwoods and the world’s best Composite brands to every site visit.

Ready to start your project? Contact Us Today for a free site measure and quote. We service all of Sydney, from the Northern Beaches to the Hills District.