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Spotted gum for decking

Spotted Gum for Decking – A Durable and Beautiful Option for Your Deck

Balcony deck

Imagine stepping out onto a beautiful, durable deck that showcases the striking hues and unique grain patterns of Spotted Gum, an Australian native hardwood. Now, picture yourself enjoying this stunning outdoor space for years to come, knowing that your investment in spotted gum for decking was well worth it. Intrigued? You should be! In this blog post, we’ll explore the world of Spotted Gum decking, explaining why it’s the perfect choice for transforming your outdoor living area into a true masterpiece.

We’ll dive into the numerous benefits of spotted gum for decking, from its exceptional durability and strength to its versatility in various applications. You’ll learn about the differences between set lengths and random lengths, and how to source quality Spotted Gum decking timber from reputable suppliers. Finally, we’ll share practical installation tips and essential maintenance advice to ensure your Spotted Gum deck remains in tip-top condition for years to come. Let’s get started!

Key Takeaways

  • Spotted Gum decking is a durable, aesthetically pleasing hardwood timber with natural resistance to rot and insects.
  • It offers versatility in finishes and sizes for both internal or external use, along with set lengths or random lengths for either uniformity or natural appearance respectively.
  • Regular cleaning and upkeep are essential to preserve the beauty of Spotted Gum decks. Periodic oiling/staining every 12-18 months recommended.

Why Choose Spotted Gum Decking?

Spotted Gum Decking Feature Image
Spotted Gum Decking Feature Image


What makes Spotted Gum decking a worthy consideration for your next project? Here are some reasons:

  • Spotted Gum is a remarkable hardwood timber native to the eastern coast of Australia.
  • It is renowned for its durability and can withstand harsh weather conditions.
  • Spotted Gum decking comes in a wide range of hues, from light browns to deep reds.
  • It is suitable for various applications, including decking, screening, and fencing.
  • Spotted Gum decking is an ideal choice for both internal and external use.

Add to these benefits the natural resistance of Spotted Gum decking timber to rot, insects, and fungi, which guarantees its longevity and reduces maintenance needs. With its unique blend of light to dark earthy browns and subtle hints of grey and red flecks, Spotted Gum decking will surely enhance the aesthetic appeal of your outdoor living space.

Given the convenience of delivery from a nearby store, considering Spotted Gum decking for your upcoming project becomes an even more enticing proposition.

Durability and Strength

One of the most impressive attributes of Spotted Gum decking is its incredible durability and strength. Its natural resistance to termites and fire, along with its high Janka hardness rating, make it an ideal choice for outdoor use.

But that’s not all – Spotted Gum decking is also highly resistant to wear and tear, ensuring that it maintains its pristine appearance for years to come. The mix of colors and grain patterns found in Spotted Gum decking only adds to its appeal, creating a visually stunning outdoor space that’s also built to last.

Thus, choosing Spotted Gum decking means investing not only in a visually appealing and distinctive timber but also in a decking material designed for longevity.

Aesthetic Appeal

The aesthetic appeal of Spotted Gum decking is undeniably captivating. Its captivating natural colours range includes a mix of light to dark earthy browns, complemented by subtle hints of grey and red flecks. This beautiful timber is popular not only in Melbourne but also across Australia, making it a sought-after choice for homeowners looking to elevate their outdoor living spaces.

The features of Spotted Gum decking include:

  • Undulating grain pattern
  • Visual allure
  • Unique and eye-catching surface
  • Stunning colors
  • Intriguing grain patterns
  • Robust durability

With these features, Spotted Gum decking is a top choice for those seeking an aesthetically pleasing yet long-lasting decking solution.


The remarkable versatility of Spotted Gum decking makes it suitable for a multitude of applications, from outdoor decking to indoor flooring. Furthermore, Spotted Gum decking is available in a diverse range of finishes and sizes, making it suitable for numerous projects.

Whether you’re looking for a natural, stained, or oiled finish, Spotted Gum decking has got you covered. And with sizes ranging from small boards to large planks, you can customize your Spotted Gum deck to fit your specific requirements.

The versatility of Spotted Gum decking makes it an ideal choice for those looking to create a one-of-a-kind outdoor space that’s both functional and beautiful.

Set Lengths vs Random Lengths

Hardwood deck boards


When selecting Spotted Gum decking, your decision will boil down to choosing between set lengths and random lengths. Set lengths refer to decking boards that are cut to a precise length, usually ranging from 5.4 meters to 6.0 meters, while random lengths are boards that come in varying lengths, generally between 0.9 meters and 5.4 meters.

The main difference between set lengths and random lengths lies in the uniformity of the board lengths. Set lengths provide a more consistent appearance, while random lengths offer a more natural and varied appearance to the decking. Each option has its own advantages and disadvantages, so it’s essential to consider your specific project requirements and personal preferences when making a decision.

Set Lengths

Set lengths of Spotted Gum decking offer several benefits, including:

  • Convenience
  • Reduced waste
  • A uniform aesthetic
  • Robustness
  • Fire resistance

With set lengths, you can easily calculate the amount of timber needed for your project, ensuring minimal wastage and a streamlined installation process.

While sourcing set lengths of Spotted Gum decking, it’s vital to evaluate the product quality, available quantity and stock, along with the reputation of the supplier. This will help you obtain high-quality set lengths of Spotted Gum decking that meet your specific requirements and ensure a stunning final result.

Random Lengths

On the other hand, random lengths of Spotted Gum decking offer:

  • Durability
  • Variety
  • Flexibility
  • Fire resistance

The board lengths can vary, creating a more natural and visually interesting decking design, allowing you to achieve a unique and personalized outdoor space.

However, one significant drawback of using random lengths of Spotted Gum decking is the potential installation challenges compared to set lengths. Despite this, the benefits of random lengths often outweigh the drawbacks, making it a popular choice for many homeowners seeking a distinctive and aesthetically pleasing decking solution.

Sourcing Quality Spotted Gum Decking Timber

Oiled deck 1

To build a Spotted Gum deck that stands the test of time, ensure you source quality Spotted Gum decking timber from trusted suppliers. Some reliable suppliers of Spotted Gum decking timber include:

While evaluating the Spotted Gum decking timber’s quality, look for indications of:

  • rot
  • insect damage
  • warping
  • ensure the timber is free from knots or splits

By sourcing high-quality Spotted Gum decking timber, you can guarantee a stunning and durable deck that will stand the test of time.

Australian Suppliers

Purchasing Spotted Gum decking timber from Australian suppliers comes with several advantages, including:

  • Ease of workability
  • Long lifespan of up to 40 years
  • Remarkable termite resistance
  • Fire resistance
  • Outstanding strength and durability

When evaluating the quality of Spotted Gum decking timber from Australian suppliers, be on the lookout for indications of:

  • rot
  • insect damage
  • warping
  • knots or splits in the timber

By purchasing from reputable Australian suppliers, you can ensure that you’re getting top-quality Spotted Gum decking timber for your project.

Checking Product Quality

It’s essential to inspect Spotted Gum decking timber for signs of damage or defects before making a purchase. To do this effectively, visually inspect the timber for any signs of:

  • Rot
  • Insect damage
  • Warping
  • Knots
  • Splits

If possible, visit a supplier or manufacturer to inspect the timber in person. This will allow you to thoroughly check the quality of the Spotted Gum decking timber and ensure that it meets your specific requirements.

Quantity and Stock

Determining the quantity and stock of Spotted Gum decking timber needed for your project is essential to avoid wasting time and money. To do this, measure the area you need to cover and calculate the number of boards you will require.

Once you have determined the amount of timber needed, contact the supplier to inquire about their current stock levels. By taking the time to ascertain the quantity and stock of Spotted Gum decking timber, you can ensure that you have all the materials you need to complete your project successfully.

Installation Tips for Spotted Gum Decking

Spotted gum deck installation


Having sourced quality Spotted Gum decking timber and determined the required quantity for your project, the next step is to install your new deck. In this section, we’ll share some practical installation tips to help you achieve the best possible results.

Follow these guidelines to ensure a smooth and successful installation process that leaves you with a stunning Spotted Gum deck that’s built to last.

Preparing the Area

Proper area preparation is key before installing your Spotted Gum deck. Remove any rubble or vegetation from the site to guarantee that the deck is built on an even plane and that the timber is not damaged by any sharp objects.

Mark out the length and position of the deck on the wall of the house using a tape measure and a pencil, ensuring that the deck is constructed in the precise position and that the timber is cut to the exact length.

By taking the time to prepare the area thoroughly, you can avoid potential issues during the installation process and achieve a flawless final result.

Board Spacing and Fixing

Correct board spacing and fixing play a crucial role in maintaining the durability and appealing look of your Spotted Gum deck. For wide decking boards of up to 140mm in width, a minimum gap of 6mm is recommended, while a minimum gap of 5mm is recommended for decking up to 90mm wide.

When securing the decking boards, use one fixing per board and joist. Ensure that the nails or screws are positioned in the middle of the boards for enhanced stability.

By following these guidelines, you can ensure that your Spotted Gum deck is built to last and maintains its optimal appearance for years to come.

Finishing Touches

After installing your Spotted Gum deck, applying finishing touches is a must to protect and enhance its appearance. Applying a decking oil or sealer is recommended to safeguard the timber from the elements and maintain its aesthetic appeal.

Alternatively, you can allow the wood to weather naturally for 6-8 weeks before applying any protective coatings or oils. Regardless of the method you choose, taking the time to finish your Spotted Gum deck properly will ensure that it remains in excellent condition for years to come.

Maintenance and Care of Spotted Gum Decking

Cleaning a deck


Consistent maintenance and care are key to maintaining the condition and look of your Spotted Gum deck. Routine cleaning and maintenance of your deck can prevent the build-up of dirt, grime, and other particles, while also shielding the decking from the elements.

In this section, we’ll share some essential maintenance tips to help you keep your Spotted Gum deck looking its best and lasting for years to come.

Regular Cleaning

For effective cleaning of your Spotted Gum deck, follow these steps:

  1. Gently scrub the surface with a soft-bristled brush or broom.
  2. Use a mild detergent to clean the deck.
  3. Avoid using harsh cleaners like bleach.
  4. Avoid pressure washing, as it may damage the wood and strip away its natural oils, potentially causing cracking, warping, and discoloration.

By regularly cleaning your Spotted Gum deck with gentle methods, you can maintain its pristine appearance and ensure its longevity.

Periodic Oiling or Staining

Applying oil or stain to your Spotted Gum deck periodically can shield the timber from the elements and maintain its visual appeal. Use a high-quality decking oil or stain specifically formulated for Spotted Gum decking, and apply it evenly according to the manufacturer’s instructions.

It’s recommended that Spotted Gum decking be oiled or stained every 12-18 months, or as needed, to ensure that the deck remains in optimal condition.

Inspecting for Damage

Deck boards that were not oiled properly


It’s important to regularly check your Spotted Gum deck for potential damage signs, including:

  • Wood warping
  • Cracks
  • Splits
  • Decay

Pay particular attention to areas where the deck makes contact with the ground or where wood is connected with wood.

If you discover signs of damage, take immediate action to address minor issues and prevent further deterioration. Apply chemical treatments or allow the wood to weather for 6-8 weeks, depending on your personal preference and the condition of the timber.


In conclusion, Spotted Gum decking offers a unique combination of durability, strength, aesthetic appeal, and versatility, making it an excellent choice for your next outdoor project. By sourcing quality Spotted Gum decking timber from reputable suppliers and following the installation tips and maintenance advice outlined in this blog post, you can create a stunning and long-lasting deck that will be the envy of your neighbours.

So, why not take the plunge and invest in Spotted Gum decking for your outdoor living space? With its captivating natural colors, intriguing grain patterns, and remarkable durability, Spotted Gum decking is sure to elevate your home’s aesthetic and provide a beautiful, functional space for you and your family to enjoy for years to come.

Frequently Asked Questions

Is spotted gum good for decks?

Spotted gum is known to be an extremely hardy timber, which makes it ideal for decking as it can last for up to 40 years with the right care. It also looks great, with a range of colours and finishes to choose from. Thus, spotted gum is an excellent choice for decks.

Is Merbau or spotted gum better for decking?

Spotted Gum and Silvertop Ash are both more sustainable and environmentally friendly choices for decking as they have natural resistance to termites and the Lyctid borer, whereas Merbau is only naturally resistant to termites and is usually imported. Therefore, it is generally advised that Spotted Gum or Silvertop Ash are better for decking.

What are the problems with spotted gum decking?

Due to its high oil content, spotted gum can be resistant to certain adhesives and vulnerable to corrosion damage when unseasoned. Additionally, it is susceptible to moisture-related issues like mold and cupping, and tends to be more expensive than other timber decking and cladding species.

What are the disadvantages of spotted gum?

Spotted gum has many advantages, but it is also subject to mould and cupping due to its high water retention. It is vulnerable to corrosion damage when unseasoned, and adhesives may not work as well because of the high oil content. In addition, it is more expensive than some other timber decking and cladding species.

What are the main advantages of Spotted Gum decking?

Spotted Gum decking is renowned for its durability, strength, attractive finish and versatility, making it an ideal choice for decking projects.

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