Know all about merbau decking appearance reasons to choose facts to know
If you’re planning to build or upgrade your outdoor space, Merbau decking is likely one of the top materials on your list—and for good reason. Known for its stunning appearance and impressive durability, Merbau has earned its place as one of the most sought-after hardwoods for decking across Australia.
But before investing in any timber, it’s important to understand what makes Merbau so popular, how it looks, and the key facts you should know. This guide offers everything homeowners, builders, and landscapers need to know—delivered with industry expertise and real-world experience.
What Does Merbau Decking Look Like?
One of the main reasons people choose Merbau is for its rich, reddish-brown colour and eye-catching grain pattern.
Key features of Merbau decking appearance:
- Colour: Freshly cut Merbau ranges from orange brown to deep reddish brown, and it deepens over time with exposure to light and air.
- Grain: It has a beautiful, interlocked grain that gives it a naturally luxurious finish.
- Texture: Smooth, slightly oily surface that responds well to sanding and oiling.
- Natural highlights: The presence of golden flecks gives the timber a glowing effect, especially when freshly oiled.
Merbau’s timeless aesthetic complements both modern and traditional Australian outdoor designs, making it a versatile choice for decks, patios, pool surrounds, and pergolas.
Top Reasons to Choose Merbau Decking
Merbau isn’t just beautiful—it’s also high-performing. Here’s why so many homeowners and builders trust it:
1. Exceptional Durability
Merbau is a hardwood that ranks high on the Janka hardness scale. It resists:
- Rot
- Termites
- Harsh weather
- This makes it ideal for high-traffic outdoor areas exposed to Australia’s extreme climate.
2. Long Lifespan
With proper care, a Merbau deck can last 25 years or more, making it a cost-effective investment over time.
3. Bushfire Resistance
Merbau is naturally BAL 29 fire-rated, meaning it can be used in bushfire-prone areas without the need for chemical treatment. This makes it one of the few hardwoods approved for use in BAL-rated zones.
4. Workability
Merbau is known for being easy to work with—whether you’re cutting, drilling, or fastening. It doesn’t splinter easily, which is great for barefoot traffic and DIY installers.
5. Sustainable Sourcing Options
Many suppliers now offer FSC-certified Merbau, ensuring it is sourced responsibly and legally. Choosing certified products supports sustainable forestry practices.
6. Low Maintenance
Although Merbau benefits from regular oiling to maintain its colour, it doesn’t require intensive upkeep. Its natural oils make it resistant to moisture and decay.
Essential Facts You Should Know About Merbau Decking
Before you commit, here are some key facts about Merbau decking that every buyer should know:
It Can Bleed When Wet
Merbau contains high levels of tannins. If left untreated, it may leach reddish-brown pigment when wet—potentially staining concrete, tiles, or nearby walls. To prevent this:
- Let the timber weather before installation
- Pre-wash or pre-oil the timber
- Use proper spacing and drainage design
Regular Oiling Maintains Its Beauty
While Merbau is naturally resilient, its deep colour can fade to grey over time without oiling. Applying decking oil every 6–12 months keeps the timber nourished and vibrant.
It’s Heavier Than Softwoods
Being a dense hardwood, Merbau is heavier and denser than options like treated pine. This may require stronger framing, but it also means a stronger, more robust deck.
Available in Various Sizes and Profiles
Merbau decking is available in popular sizes such as:
- 90x19mm
- 140x19mm
- 70x22mm
This range allows flexibility in both design and structural performance
Price Reflects Quality
Merbau is generally more expensive than softwoods—but the price reflects its longevity, strength, and appearance. For many, it’s a one-time investment in a premium, long-lasting outdoor feature.
Experience and Industry Insights
As decking specialists with years of experience in timber products, we’ve supplied and installed thousands of square metres of Merbau decking across Melbourne and beyond. Our expert installers and timber suppliers recommend Merbau because:
- It stands the test of time in Australia’s unpredictable weather
- It offers superior visual appeal over many alternatives
- Customers love its low maintenance and long-term performance
We also stay up to date with compliance standards, fire ratings, and environmental certifications to ensure you receive not only a great-looking deck, but one that is safe, legal, and sustainable.
Why Trust Our Recommendations?
We believe in offering more than just products—we provide solutions backed by:
Experience – Years of working directly with builders, homeowners, and landscapers
Expertise – Deep knowledge of timber grading, installation, and finishing
Authoritativeness – Partnerships with certified suppliers and compliance with national standards
Trustworthiness – Transparent pricing, honest advice, and quality assurance every step of the way
Final Thoughts
If you’re looking for a premium decking solution that offers both aesthetic charm and structural reliability, Merbau decking is hard to beat. Its combination of beauty, strength, fire resistance, and longevity make it one of the smartest choices for Australian outdoor spaces.
However, understanding the timber’s characteristics—like tannin bleed, oiling needs, and sizing options—will help you make the most of your investment.
