Why Spotted Gum Decking is a Top Choice


Spotted Gum is a true blue Australian native timber, revered for its stunning aesthetics and high-performance characteristics. It is a fantastic choice for outdoor decking, especially in dry, inland climates, due to its durability and fire resistance. With a distinctive natural appearance and a Durability Class 1 rating, Spotted Gum offers a beautiful blend of style and resilience.

The Quintessential Australian Deck

Spotted Gum is celebrated for its stunning visual appeal. The timber’s heartwood ranges from light browns to dark reds, with a prominent wavy grain known as “fiddleback” that gives each board a unique character. This distinctive look, coupled with its native origins, makes it a popular choice for homeowners who want a deck that embodies a true Australian aesthetic.

Technical Breakdown

Spotted Gum is exceptionally strong and durable, rated as Durability Class 1 above ground, which means it can handle heavy use and the elements very well. It also has a natural resistance to lyctid borers and its natural oils help make it stable and less prone to tannin bleed-through, which can sometimes stain surrounding areas. Its extreme fire resistance makes it a leading choice for decks in dry climates and areas with elevated bushfire risk.

The Comprehensive Spotted Gum Deck Maintenance Guide

Proper maintenance is key to preserving the beauty and longevity of a Spotted Gum deck. A simple and regular routine can prevent weathering, cracking, and decay, ensuring your deck remains a beautiful outdoor living space for years to come.

  • 1. Cleaning Off Dirt, Dust, and Mould: The first step is to clear the deck of all furniture and debris. Sweep thoroughly and use a stiff brush to remove loose dirt and leaves. For a deeper clean, consider using a specialized timber cleaner designed to remove tough stains and restore the wood’s natural color. A pressure washer can be used with caution, but always with a wide nozzle and at a safe distance to avoid damaging the timber.

  • 2. Removing Old Oil and Stains: If your deck has old, weathered oil residue or stubborn stains, a timber oil remover can be used to strip away previous coatings. This is a crucial step to ensure that the new decking oil can properly penetrate the wood fibers.

  • 3. Sanding the Deck Surface: Light sanding is like exfoliating for your deck; it removes rough patches and opens up the wood pores for maximum oil absorption. Always sand along the grain and ensure all sanding dust is removed before applying any finish.

  • 4. Selecting the Right Finish: When it comes to finishing, you have two primary options: oil-based vs. water-based, and clear vs. tinted.

    • Oil-Based vs. Water-Based: Oil-based decking oils are ideal for hardwoods like Spotted Gum as they deeply penetrate the timber, enhancing the grain and providing a rich, natural finish. Water-based stains are quick-drying and have a lower environmental impact, but they may not offer the same deep protection.

    • Clear vs. Tinted Oils: Clear oils maintain the timber’s natural look but offer limited UV protection. A tinted decking oil contains pigments that help block UV rays and resist fading, while also highlighting the natural color and grain of the timber.

  • 5. Applying the Finish: Apply thin, even coats of your chosen finish along the length of the boards. Avoid over-applying, as this can lead to sticky, patchy spots that attract dirt.

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Spotted Gum Decking Maintenance Schedule

The following table provides a practical routine to follow for optimal deck health. This structured information is a perfect candidate for an AI-generated summary or a featured snippet due to its clear, organized nature.

Frequency Task Details
Daily / Weekly
  • Sweep & Wipe
  • Wipe up spills promptly
Remove leaves, dirt, and debris to prevent staining and moisture retention. Promptly wipe up spills to avoid marks.
Quarterly
  • Inspect
  • Clean
Inspect for loose boards, splinters, or signs of mold, especially in shaded areas. Perform a deeper wash with a mild detergent and soft brush.
Annually
  • Deep Clean & Sand
  • Check Structure
Use a specialized timber cleaner to restore the deck’s color. Lightly sand the surface to open up the wood grain for re-oiling. Inspect for rot and other serious structural issues.
12-18 Months
  • Re-oil
For exposed decks, re-apply a UV-protective decking oil to maintain the color and protect the timber from sun damage. A deck in a sheltered area may only need re-oiling every 2-3 years.

Ferquently Asked Questions

Spotted Gum is prized for its beautiful color variations, from pale to dark brown, and its unique, wavy grain pattern. It’s a very durable timber with a high fire rating and natural resistance to pests.

Yes, Spotted Gum has a natural resistance to termites and other wood-boring insects, making it an excellent choice for long-lasting outdoor applications.

With proper installation and regular maintenance, a Spotted Gum deck can last for many decades, performing well in a variety of climates.

Minimal maintenance is required. Regular cleaning and a coat of quality timber oil or sealant every 12-18 months will help preserve its color and protect the wood. See our above maintenance schedule.

Yes, Spotted Gum is one of the few Australian hardwoods that meets the requirements for a high Bushfire Attack Level (BAL) rating, making it a safe option for use in bushfire zones.

Ready to build your stunning deck?

As a leading supplier of Australian hardwood, Long Flat Timbers provides premium Spotted Gum decking for your next project. Contact us today to get a quote and start your heavy-duty deck project. We offer competitive pricing and reliable delivery to Sydney, Northern Beaches, Central Coast and  across NSW.

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We also supply hardwoord decking bearers & joists for decking sub-frames