Ultim8 Grey Ash Composite Decking is engineered to perform under Australia’s harshest conditions. Offering strength, stability, and slip resistance, Ultim8 Grey Ash is a practical yet stylish alternative to natural timber decking. Easy to install and maintain, this premium composite solution enhances the look and feel of any outdoor space while delivering long-term performance and lasting value.
Ultim8 Composite Decking – Grey Ash
$110.00 inc GST
Our Ultim8 Grey Ash Composite Decking delivers a sleek, modern aesthetic inspired by the soft tones of weathered timber, without the need for oiling, sealing, or ongoing maintenance. Designed for Australian conditions, this high-performance decking solution combines FSC-certified wood fibres and recycled plastic for long-lasting durability, UV stability, and slip resistance. The Grey Ash finish offers a refined, contemporary look that complements coastal, minimalist, and architectural designs, bringing balance and sophistication to any outdoor space.
- Colour: Grey Ash – soft, silvery-grey tone with a modern, matte finish
- Material: FSC-certified wood fibres + recycled plastic
- Surface: Textured, slip-resistant R11 / P5 finish
- Durability: Termite, rot, and mould resistant
- Low Maintenance: No oiling or sealing required
- Application: Suitable for all external installations
- Sustainability: Made from responsibly sourced wood and recycled materials
Length: 5.4m
Width: 137mm
Height: 23mm
Product Downloads:
ULTIM8DECK – Brochure (pdf)
ULTIM8DECK – Material Safety Data Sheet (pdf)
ULTIM8 Decking – Care and Maintenance Guide (pdf)
ULTIM8 Decking – Installation Guide (pdf)
ULTIM8 Decking – Storage and Handling Guide (pdf)
ULTIM8 Decking – Manufacturers Warranty (pdf)
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The Grey Ash finish captures the elegant simplicity of sun-aged timber, with gentle silver undertones and a fine-grain surface that adds natural depth without overpowering surrounding materials. Its cool, neutral palette pairs beautifully with concrete, steel, and rendered finishes, making it an ideal choice for modern architectural exteriors, coastal homes, and commercial spaces seeking a contemporary edge.
- Designed for Australian Conditions
Tested to perform across tropical, coastal, and arid environments - Sustainable Composition
Manufactured using FSC-certified wood fibres and recycled plastics - Low Maintenance
No need for oiling, sealing, or staining. Simply install and enjoy - Slip-Resistant Safety
R11 / P5 rated surface ideal for wet or high-traffic zones - Durable & UV-Stable
Engineered to resist fading, warping, and moisture absorption. - Termite, Rot & Mould Resistant
Designed to withstand mould, biological decay, and damage from termites and pests for long-term structural integrity - Repairable Design
Consistent colour and grain throughout the core allow simple scratch repair and refinishing if required
- Outdoor decks and patios
- Pool and spa surrounds
- Balconies and rooftop terraces
- Garden walkways and boardwalks
- Hospitality and commercial spaces
- Architectural outdoor installations
No sealing or oiling required, just routine cleaning to maintain appearance.
- Colour: Grey Ash
- Material Composition: FSC-certified wood fibres + recycled plastic
- Finish: Textured timber grain surface (R11 / P5 slip rating)
- Maintenance: No oiling or sealing required
- Durability: UV-stable, termite, rot, and mould resistant
- Certification: Tested and compliant with Australian standards
- Application: Residential and commercial outdoor use
Why Choose Rustic World Timbers
Rustic World Timbers is trusted by Australian builders, designers, and homeowners for high-quality, sustainable timber solutions. We specialise in environmentally responsible timber decking and outdoor timber products crafted from recycled and ethically sourced materials that deliver both visual impact and structural reliability.
Ultim8 Decking, a next-generation composite system that delivers the natural warmth of timber with advanced material performance. Crafted from sustainable resources and engineered for Australian conditions, Ultim8 is the smart, long-lasting choice for any outdoor project.
Sustainable. Built to last. Designed to inspire.
Delivery & Pickup Information
Melbourne & Victoria:
Once your order is ready, you can collect it from our Melbourne base at 721 Heidelberg-Kinglake Road, Hurstbridge VIC 3099. We also offer flexible delivery across Melbourne and regional Victoria. Our team can help coordinate delivery to suit your project timeline and site requirements.
Australia-Wide Shipping:
We ship nationwide and can arrange delivery to most locations across Australia. Get in touch with our team, and we’ll help organise the best delivery option for your location and schedule.
Contact Us
Want to learn more about Ultim8 Composite Decking?
Speak with one of our timber specialists.
