Merbau Timber

When it comes to decking materials, few can match the natural elegance and durability of Merbau timber. This tropical hardwood, renowned for its rich colour and excellent properties, has become a top choice for Merbau decking in 140mm wide or 45mm thick planks. 

Here are some key qualities of Merbau timber and why it is a popular choice for decking and staircase construction.

Merbau Wood Qualities

Merbau wood, scientifically known as Intsia bijuga, is native to Southeast Asia and the Pacific region. It’s a timber species that’s celebrated for its stunning appearance and remarkable resilience. The wood boasts a rich reddish-brown hue, accented by darker streaks, creating a visually captivating finish. Its aesthetic appeal makes it an ideal choice for those looking to enhance the visual appeal of their outdoor spaces.

140×45 Treated Pine Decking

When it comes to deck building, the choice of wood is critical. The 140×45 dimensions are quite common for deck planks. While treated pine decking is another popular choice due to its affordability, Merbau wood stands out due to its natural beauty and superior durability. It’s important to treat pine with a chemical to enhance its resistance to decay and insects, but Merbau requires minimal treatment and still outperforms in terms of longevity.

Benefits of Merbau Wood

In addition to its remarkable durability, Merbau wood offers an array of benefits that set it apart as a premier choice for various applications. Its innate resistance to decay, termites, and rot not only ensures longevity but also minimizes the need for frequent maintenance, making it an exceptionally low-maintenance option. This feature proves invaluable, particularly in outdoor settings where exposure to challenging weather conditions is inevitable. Beyond its resilience, Merbau wood boasts a timeless aesthetic that, when combined with its enduring structural integrity, results in a cost-effective investment that stands the test of time while retaining its captivating visual appeal.

Merbau Wood Durability

The remarkable durability of Merbau wood is intricately linked to its inherent qualities, namely its abundant natural oils and a densely structured grain pattern. These distinctive features collectively bestow exceptional resilience to Merbau, rendering it highly resistant to water absorption. Even in the face of constant exposure to moisture, the wood maintains its structural integrity, emerging as a stalwart material for applications such as decking. Its innate ability to withstand the challenges posed by rain, humidity, and various environmental factors underscores Merbau’s suitability for outdoor use, ensuring longevity and robust performance in diverse weather conditions.

Merbau Wood Features

Merbau wood stands out among various decking materials due to its exceptional features. Its inherent resistance to decay and insects eliminates the need for extensive chemical treatments, providing a low-maintenance solution for outdoor spaces. Additionally, Merbau wood undergoes a stunning natural aging process, gracefully transforming into a silver-grey patina over time. This unique weathering not only enhances the wood’s durability but also bestows a sought-after character and charm to outdoor environments, making it a premier choice for those seeking both functionality and aesthetic appeal in their decking.

Staircase Construction with Merbau Wood

Renowned for its popularity in decking applications, Merbau wood stands out as an exceptional choice for staircase construction due to its unparalleled durability and resistance to everyday wear and tear. Opting for Merbau ensures the creation of staircases that not only exude elegance but also promise enduring quality. The wood’s robust nature ensures a long-lasting and sturdy structure, while its rich color and natural aesthetics contribute to crafting staircases that not only serve a functional purpose but also enhance the overall aesthetic appeal of your home, creating a welcoming and warm entrance.

Merbau Wood Properties

Merbau wood possesses a set of unique properties that make it an exceptional choice for outdoor applications. It has a Janka hardness rating of approximately 1,450, making it significantly harder than many other common hardwoods. This high hardness level means it can withstand heavy foot traffic and resist scratches and dents, making it ideal for both decking and staircase treads.

Merbau Wood for Staircases

When choosing wood for staircase construction, it’s important to consider both its strength and aesthetics. Merbau Wood excels in both of these aspects. Its natural beauty enhances the visual appeal of any staircase, creating a warm and inviting atmosphere in your home. Its durability ensures your staircase will remain safe and sturdy in the coming years. 

Merbau Wood Characteristics

To summarise, the key characteristics of Merbau wood that make it a sought-after choice for decking and staircase construction include:

  1. Durability: Merbau wood’s durability, impervious to decay, termites, and rot, guarantees a lasting, worry-free lifespan for your outdoor projects.
  1. Natural Beauty: Merbau wood’s natural beauty is evident in its rich, lustrous colour and distinctive grain patterns. Whether indoors or outdoors, it imparts an elegant and captivating aesthetic, elevating the ambience of any space.
  1. High Hardness: With a Janka hardness rating of 1,450, Merbau can withstand heavy use without showing signs of wear.
  1. Resistance to Water: Merbau’s natural oils and dense grain structure make it resistant to water absorption.

Over time, Merbau wood weathers to a beautiful silver-grey patina, adding character to your deck or staircase.


Merbau timber in 140mm wide, 45mm thick planks is an exceptional choice for decking and staircase construction. Its combination of natural beauty, durability, and resistance to environmental factors makes it a smart investment for those seeking both functional and visually appealing outdoor or indoor spaces. Whether you’re planning a new deck or looking to enhance your home’s entrance with a stunning staircase, Merbau wood is a top choice that will not disappoint.