Introduction
When Sarah and Tom approached us about their Bondi home renovation, they had a clear vision: a luxury hardwood deck that would withstand the coastal salt spray and become the heart of their summer entertaining space. What they got was a stunning 45-square-metre Merbau hardwood entertainer’s deck — complete with built-in seating, café lighting, and a view that rivals any Sydney resort.
In this project spotlight, we’re breaking down exactly how we delivered this premium outdoor space, the material choices that make Merbau perfect for Bondi’s harsh coastal climate, and what homeowners in similar beachside suburbs can expect.
Why Merbau for Bondi’s Coastal Climate?
Bondi is one of Sydney’s most exposed coastal suburbs. Salt spray, UV intensity, and humidity make decking material selection critical. While composite decking offers lower maintenance, Sarah and Tom wanted the authentic warmth and natural beauty of solid hardwood — and that’s where Merbau shines.
Merbau’s coastal advantages:
– Naturally rot-resistant: This Indonesian hardwood has an incredibly high density and natural oils that repel moisture and salt damage far better than local timbers like spotted gum or ironbark
– Zero splinters: The wood’s density means a smooth, splinter-free surface after 5+ years — perfect for barefoot entertaining
– Deep golden-bronze patina: Over time, Merbau develops a rich, warm colour that looks increasingly premium (though we recommend oil treatments every 12–18 months for colour retention)
– Longevity in salt air: With proper maintenance, Merbau decks in Bondi routinely last 25+ years, compared to 15–20 years for treated pine
Material Specifications for This Project
– Hardwood: Merbau (Intsia bijuga), kiln-dried to Australian standards
– Board profile: 85mm × 19mm, smooth sanded
– Joists: C24 treated pine on 400mm centres
– Bearers: Concrete footings set 600mm deep (essential for coastal subsidence risk)
– Fasteners: Marine-grade stainless steel decking screws throughout
The Build: Key Features & Design Choices
1. Integrated Seating & Storage
Rather than add portable furniture, we built two curved timber benches directly into the deck frame. This serves dual purposes:
– Creates defined entertaining zones without cluttering the space
– Provides hidden storage underneath for cushions, pool toys, and entertaining supplies
– Reduces splashing risk for guests with children
The benches are finished with Merbau armrests and softly curved edges — comfort and safety without compromise.
2. Café String Lighting
Sarah wanted the space to feel resort-like after sunset. We installed:
– Stainless steel cables strung between 2.4m posts at each corner
– 40 warm-white Edison-style bulbs on 1-metre spacing
– Dedicated 240V circuit buried 450mm underground to meet council requirements
Cost for this feature: approximately $2,800–$3,200 installed. But the ambiance transformed the deck from daytime entertaining to evening gathering spot.
3. Subfloor Ventilation & Drainage
Because Bondi’s humidity can trap moisture underneath, we implemented:
– 150mm clearance under all joists (not the typical 75–100mm)
– Permeable landscape fabric to prevent weed growth while allowing airflow
– A slight 1:60 fall gradient to direct water towards a small French drain system
This “breathing deck” approach costs ~10% more upfront but adds years to the deck’s lifespan in coastal conditions.
Pricing Breakdown for a Bondi-Style Merbau Deck
Size: 45m²
Timeframe: 8 working days (including engineering inspection and council approval)
Cost |
|——|——|
$7,650 |
$1,200 |
$800 |
$4,800 |
$2,100 |
$3,000 |
$680 |
$20,230 |
Cost per square metre: ~$450 (premium hardwood + coastal specification)
For comparison:
– Composite decking (Evalast/Millboard) on the same footprint: $12,500–$14,800
– Treated pine deck without integrated features: $8,000–$10,000
Maintenance: Keeping Your Merbau Deck Looking Premium
Once installed, Merbau requires commitment — but the payoff is worth it.
Year 1: Light oil treatment (Feast Watson or Cutek). Cost: ~$400–$500 + 2 days labour
Years 2–3: Annual inspection and touch-up oil. Cost: ~$200–$300
Every 5–7 years: Deep maintenance oil with grain enhancement. Cost: ~$800–$1,200
What to avoid:
– Pressure washing (damages the wood’s surface and accelerates weathering)
– Generic deck stains (Merbau’s density rejects most products; use marine-grade oils)
– Letting spills sit (salt residue from splash zones will etch the surface)
Why Bondi Homeowners Choose 5 Star Decking
We’ve completed over 40 decking projects across Bondi’s postcodes — from clifftop homes to garden apartments. Here’s why locals trust us:
1. Coastal expertise: We understand salt spray damage, humidity pockets, and council approval timelines for beachside properties
2. Material sourcing: Direct relationships with hardwood suppliers mean premium stock and honest pricing
3. Craftsmanship: Every deck is individually engineered for your site’s specific soil, slope, and exposure
4. Warranty: 2-year workmanship guarantee + direct contact for any issues
Next Steps: Planning Your Bondi Deck
If you’re considering a hardwood deck like Sarah and Tom’s, here’s what we recommend:
1. Book a site assessment ($0 — we do this free)
2. Get a detailed quote with material options (hardwood vs. composite, board thickness, integrated features)
3. Allow 6–8 weeks for council approval and scheduling
4. Plan for ongoing care — Merbau is high-maintenance but incredibly rewarding
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Call to Action
Ready to transform your Bondi outdoor space? Whether you want a resort-style entertainer’s deck or a low-key garden renovation, 5 Star Decking has delivered hundreds of premium projects across Sydney’s best suburbs.
Get your free site assessment and quote today.
📞 Call us: 0433 334 415
💬 [Contact us online](/contact/)
📍 Serving: Bondi, Coogee, Tamarama, Bronte, Clovelly, and all of Sydney’s Eastern Beaches
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*This project was completed in April 2026. All pricing is current as of June 2026 and is based on standard Australian hardwood supply and labour rates. Actual quotes vary based on site conditions, council requirements, and material availability.*
