Merbau timber decking is an excellent choice for homeowners looking to add beauty, durability, and functionality to their outdoor spaces. Renowned for its rich, dark colour and resistance to the elements, Merbau timber is perfect for Australian weather. Whether you’re a seasoned DIY enthusiast or a first-timer, this step-by-step guide will walk you through everything you need to know to install Merbau decking in your own backyard. Let’s get started!
Why Choose Merbau Timber for Decking?
Before diving into the installation process, it’s important to understand why Merbau timber is a great option for your deck.
1. Durability
Merbau is a hardwood that’s naturally resistant to termites, fungi, and moisture. This makes it a popular choice for Australian decking, as it can withstand the harsh sun, rain, and fluctuating temperatures. With proper care, your Merbau deck will last for years.
2. Aesthetic Appeal
Merbau timber boasts a warm, reddish-brown hue that deepens over time, giving your deck a beautiful, sophisticated look. It’s perfect for complementing a wide variety of outdoor spaces, from coastal retreats to urban backyards.
3. Easy Maintenance
Compared to some other hardwoods, Merbau requires relatively low maintenance. A simple oil treatment once or twice a year will help retain its colour and prevent splitting or cracking.
Explore Merbau Timber Decking products:
- 140 x 19 Merbau Deck Random Length 1.8 to 5.7
- 90 x 19 Merbau Deck Random Length 1.8 to 5.7
- MERBAU 90 X 19 mm
Tools and Materials You’ll Need
Before you start installing your Merbau decking, gather all the necessary tools and materials to ensure a smooth process. Here’s what you’ll need:
- Merbau timber decking boards
- Joists (timber or steel)
- Decking screws (preferably stainless steel or galvanised)
- Decking oil or protective finish
- Saw (for cutting timber to size)
- Drill and screwdriver
- Tape measure
- Spirit level
- Square (for accurate angles)
- Safety gear (gloves, goggles, etc.)
- Decking spacers (optional but recommended for uniform gaps between boards)
Step 1: Plan Your Deck Layout
The first step in any decking project is planning. Before you begin, take some time to measure and sketch the layout of your deck. Consider factors like:
- Deck size: Measure the area where you plan to install the decking, allowing for proper spacing between the boards.
- Joist spacing: The joists should be spaced around 450mm to 600mm apart, depending on the thickness of your decking boards.
- Decking board direction: Decide whether your boards will run parallel or perpendicular to the house. Running them perpendicular creates the illusion of a larger space.
It’s important to follow Building Code of Australia guidelines when designing and constructing your deck to ensure it meets structural and safety standards.
Step 2: Prepare the Ground
Preparing the ground properly is crucial to ensure your deck lasts. Follow these steps:
1. Clear the Area
Remove any grass, weeds, or debris from the area where your deck will be installed. It’s essential to have a clean surface to work with.
2. Level the Ground
Use a spirit level to ensure that the ground is flat and level. If needed, you can excavate a small amount of soil to ensure a level surface.
3. Lay a Weed Barrier (Optional)
If you’re concerned about weeds growing through your deck, lay down a weed barrier fabric before installing the joists. This will help prevent weeds from coming through without restricting drainage.
Step 3: Install the Decking Frame (Joists)
The frame of your deck is made up of joists, which will support the decking boards. Follow these steps to install the joists:
1. Mark Joist Placement
Mark the locations where the joists will go, keeping them spaced 450mm apart for standard decking. Make sure the joists are parallel to one another.
2. Secure the Joists
Install the joists securely by fixing them to concrete or timber posts using a strong, durable fastener like screws or joist hangers. Ensure that the joists are level and aligned with the layout plan.
3. Check for Square
Use a square tool to check that the corners of your deck are at 90-degree angles. This ensures that your decking will go in straight lines.
Step 4: Lay the Merbau Decking Boards
Once the frame is in place, it’s time to lay down the Merbau decking boards. Here’s how to do it:
1. Start with the First Board
Begin by laying the first decking board against the edge of the deck frame. Make sure the board is straight and aligned with the joists. Secure the board in place with decking screws, fixing the screws about 40mm from the edge of the board.
2. Continue Laying the Boards
Continue laying the boards, one at a time. Use decking spacers between the boards to maintain a consistent gap (around 3mm to 5mm). These gaps allow for expansion and contraction of the timber due to changes in weather conditions.
3. Trim the Ends
Once you reach the end of the deck, measure and trim any boards that are too long. Use a saw to make clean, straight cuts, ensuring the boards fit snugly against the edge of the frame.
4. Secure the Final Board
Once all the boards are in place, secure the final board using screws. If you want a clean finish, you can countersink the screws and fill the holes with wood filler.
Step 5: Sand and Finish Your Deck
Once all the decking boards are installed, it’s time to finish your deck to ensure it lasts.
1. Sand the Surface
Use a power sander or a sanding block to smooth out the surface of the deck. Focus on areas where there may be rough edges or splinters. Make sure to wear a dust mask for safety.
2. Apply Decking Oil
Merbau timber benefits from a good coating of decking oil to preserve its colour and prevent the timber from drying out. Apply the oil with a paintbrush or roller, following the manufacturer’s instructions. This step also helps to protect the wood from the elements.
Step 6: Maintain Your Merbau Decking
While Merbau is relatively low-maintenance, it’s important to keep your deck looking its best.
1. Regular Cleaning
Sweep your deck regularly to remove dirt and debris. For a deeper clean, use a timber deck cleaner. Avoid harsh chemicals that may damage the wood.
2. Reapply Oil
Every 12 months, it’s a good idea to reapply decking oil to protect the wood from UV damage and moisture. This will help maintain the timber’s rich colour and extend the life of your deck.
3. Inspect for Damage
Periodically inspect your deck for any signs of wear and tear, such as loose screws or warped boards. Fixing small issues early can help prevent larger problems down the line.
Conclusion
Installing Merbau timber decking is a rewarding DIY project that can transform your outdoor space. With its natural beauty, durability, and resistance to the elements, Merbau is a perfect choice for decking in Australia. By following these simple, step-by-step instructions, you’ll be able to create a stunning deck that will provide years of enjoyment.
So, roll up your sleeves, gather your materials, and get started on your Merbau timber decking project today! If you need help along the way, don’t hesitate to consult your local hardware store or online resources. Happy decking!
