Jarrah (Eucalyptus marginata) is a highly sought after Australian hardwood native to the south west of Western Australia. Renowned for its rich reddish brown tones, dense grain and exceptional natural durability, Jarrah has long been considered a premium choice for high performance outdoor decking.
In any outdoor setting, a Jarrah deck makes a striking and enduring statement. Its warm, character filled appearance is matched by impressive strength and resilience. Classified as Durability Class 2 above ground, it offers natural resistance to fire, decay and pests, making it ideally suited to the demanding Australian climate.
Why Jarrah timber decking?
Durable
Jarrah decking is exceptionally durable, making it ideal for long-term outdoor use. It is a dense and hard timber with a Class 2 above-ground durability rating, meaning it can last 25 years or more when properly maintained. Its high resistance to wear and impact makes it suitable for high-traffic areas and ensures the deck remains structurally sound over time.
Longevity
Natural resistance to weather and pests. The timber contains protective oils that help prevent moisture absorption, decay and termite attack without the need for harsh chemical treatments. This natural resilience allows Jarrah to perform well in harsh climates, coastal environments and exposed locations.
Aestetic appeal
Its deep red to burgundy tones add warmth and character to any outdoor space, and it can be oiled to maintain colour or allowed to weather to a silver-grey for a more natural look. Its consistent grain and refined texture give it a timeless, high-quality aesthetic suitable for both residential and commercial projects.
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Commonly asked questions relating to this product range. Browse all FAQsfor further details.
Yes, timbers like Blackbutt and Fijian Mahogany are sustainably harvested. Pair them with Cutek products, which are non-toxic and free from harmful additives, ensuring minimal environmental impact.
Yes, species like jarrah and Spotted Gumare naturally resistant to moisture. Enhance their protection with Cutek Extreme CD50, which resists fungal decay and controls moisture absorption.
Yes. We stock a broad range of timber and sheet materials and can machine what you need in-house. If you're sourcing your own timber, we can also machine supplied material depending on its condition and suitability.
Start by cleaning with Cutek Quickclean to remove everyday dirt. For heavily weathered timber, use Cutek restore to revive the surface and remove tannins or stains. Protect the decking with Cutek Extreme CD50 or Cutek wood preservative, which deeply penetrate to control moisture and minimize cracking.
We stock a wide range of premium decking timbers, including Jarrah, Blackbutt, Spotted Gum, Fijian Mahogany, Merbau, and Pine, catering to both residential and commercial projects..
Stocking the brands you know and trust
At Franz Building Supplies, we pride ourselves on stocking the brands you know and trust, ensuring quality and reliability for every project. From trusted names in timber to innovative solutions for decking, cladding, and more, our range is designed to help you create with confidence.
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