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It’s the question we get asked on almost every quote: *”Should I go composite or stick with timber?”*
Honestly, there’s no single right answer — it depends on your budget, your lifestyle, and what you want from your outdoor space. But after building 5,000+ decks across Sydney, we know exactly when each material shines.
Here’s the honest breakdown.
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## At a Glance
| | Timber | Composite |
|—|—|—|
| Upfront Cost | Lower | Higher (30–40% more) |
| Maintenance | High (annual oiling/staining) | Very low |
| Lifespan | 15–25 years (with care) | 25–30+ years |
| Look & Feel | Natural, warm, classic | Timber-like but uniform |
| Heat in Summer | Cooler underfoot | Can get hot (varies by brand) |
| Eco-Friendly | Depends on source | Often made from recycled materials |
| Warranty | None typically | Up to 25 years (e.g. Trex) |
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## Timber Decking: The Classic Choice
Sydney homeowners have been building timber decks for generations — and for good reason. The look of a freshly oiled Merbau or Spotted Gum deck is hard to beat. There’s a warmth and authenticity to natural timber that composite simply can’t fully replicate.
**Best timber options for Sydney:**
– **Merbau** — the most popular. Affordable, rich reddish-brown colour, good durability
– **Spotted Gum** — stunning grain, very hard-wearing, great for coastal areas
– **Jarrah** — premium look, rich dark tones, naturally resistant to termites
– **Balau** — excellent value hardwood, similar look to Merbau
**The catch?** Timber in Sydney’s climate needs work. The sun, humidity and coastal salt air take a toll. Plan on oiling or staining every 12–18 months. Skip a year and you’ll see it — cracking, greying, splitting. That’s ongoing cost and effort.
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## Composite Decking: The Low-Maintenance Modern Option
Composite decking has come a long way since it was first introduced. Today’s premium composite boards (Trex, Millboard, Modwood, TimberTech) genuinely look like timber — so much so that visitors to your home won’t know the difference.
The big sell? **You never have to oil, stain or seal it.** A rinse with the hose once in a while and it’s done.
**Best composite options we install:**
– **Trex** — market leader, 25-year fade and stain warranty, huge colour range
– **Millboard** — the most realistic timber look, premium choice, incredibly durable
– **Modwood** — great mid-range option, Australian-made
– **TimberTech / AZEK** — premium American brands with excellent performance in coastal conditions
**The catch?** Composite boards can get hotter underfoot in direct Sydney summer sun compared to timber. Lighter coloured boards help. And the upfront cost is higher — though most homeowners recoup this in saved maintenance within 5–7 years.
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## What Sydney’s Climate Means for Your Choice
Sydney throws everything at a deck — UV radiation, humidity, coastal salt air, heavy rain and then months of dry heat. This matters more than people realise.
– **Coastal suburbs** (Manly, Bondi, Cronulla): Composite is strongly recommended. Salt air accelerates timber degradation.
– **Western Sydney** (Parramatta, Penrith, Liverpool): Extreme summer heat means light-coloured composite or a shaded timber deck is ideal.
– **Hills District / Northern Suburbs**: Either works well. Personal preference and budget are the main factors here.
– **Bushfire zones**: You’ll need BAL (Bushfire Attack Level) rated materials — not all composite boards qualify. Ask us about this.
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## Our Honest Recommendation
**Choose timber if:** You love the natural look above all else, you’re working to a tighter budget, and you’re genuinely committed to annual maintenance.
**Choose composite if:** You want a beautiful deck with zero hassle, you’re in a coastal suburb, or you have young kids (no splinters).
Either way, we’ll give you honest advice on what works best for your specific home and location — not just what’s most expensive.
**[Get a free quote from 5 Star Decking →](https://5stardecking.com/contact/)**
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*5 Star Decking — installers of all major composite brands including Trex, Millboard, Modwood, TimberTech and Eva-Last. Serving all of Sydney & surrounds.*
