A Deck Built to Last
Spanmor’s engineered aluminium beams provide longer spans, low maintenance, and reliable performance for all outdoor decking projects.
Stronger, Smarter Aluminium Decking
Our aluminium subfloor system is built tough for safety and easy installation—designed to outperform traditional timber framing.
Longer Spans, Fewer Supports
Engineered beams reduce the need for extra posts and bearers.
Durable & Low Maintenance
Engineered beams reduce the need for extra posts and bearers.
Faster Installs
Lightweight, easy to handle, and reduces labour costs.
Precision Tools for Every Decking Job
Plan your decking project with Spanmor’s Subfloor Calculator and downloadable resources. Designed to save time on-site, reduce guesswork, and ensure compliance.
Instant Estimates
Calculate materials and layout in minutes.
Compliance Assured
Backed by official span tables and spec sheets.
Versatile Applications
Supports composite decking, timber, sheeting, and tiles.
Expert Guides and Support
Download brochures, span charts, and spec sheets — or speak to an expert about your subfloor project.
Frequently Asked Questions
Got questions about Spanmor products, installation, or compliance? We’ve answered the most common ones here to help you plan with confidence.
What are the key benefits of an aluminium subfloor over timber?
Spanmor aluminium eliminates issues like rot, termites, and warping. It’s lightweight, easy to install, and provides long-term durability in all Australian climates.
How does the Subfloor Calculator work?
Just enter your project dimensions, width, span, and load, and our calculator provides a complete layout or material estimate in seconds.
Are these systems compliant with Australian standards?
Absolutely. Every component meets or exceeds AS1170 (structural actions), AS4055 (wind actions), AS4100 (steel design), and AS4600 (cold-formed steel), tailored for Australia’s conditions.
Can Spanmor systems handle wet or coastal environments?
Yes, aluminium is inherently corrosion-resistant, making it perfect for high-humidity or coastal installations with minimal maintenance.
Get the Details. Build with Confidence.
Download brochures, span charts, and spec sheets — or speak to an expert about your subfloor project.
Subfloor Span Guide