A Deck That Stands the Test of Time
Spanmor’s engineered aluminium beams deliver longer spans, low maintenance, and lasting performance for any outdoor project.
Spanmor’s engineered aluminium subfloor system is designed for performance, safety, and simplicity — built to outlast traditional timber.
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.
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.
Our comprehensive guides
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.
Spanmor aluminium eliminates issues like rot, termites, and warping. It’s lightweight, easy to install, and provides long-term durability in all Australian climates.
Just enter your project dimensions, width, span, and load, and our calculator provides a complete layout or material estimate in seconds.
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.
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.
Spanmor delivers Australian-made aluminium beams and outdoor systems that are engineered for strength, durability, and ease of installation.
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Subfloor Span Guide