Composite Decking Starts With Aluminium
Spanmor aluminium subfloor framing is engineered for composite decking, delivering a stable, low-maintenance structure that won’t rot, warp or move over time. Build your deck with aluminium. Finish it with composite.
An Engineered Composite Decking System
Spanmor aluminium framing is designed to work with composite decking boards, providing a stable and reliable subframe for a wide range of applications.
Flexible Design
Suitable for a variety of deck layouts and finishes.
Reliable Performance
A straight, consistent structure that supports long-term durability.
Clean Finish
Works with common fixing methods for a seamless look.
Designed For Composite Decking
Spanmor aluminium framing is designed to work with composite decking boards, ensuring reliable performance and installation.
Not Rot or Decay
Aluminium won’t absorb moisture, helping prevent long-term structural issues.
Stays Straight
No warping, twisting or shrinkage — keeping your deck level over time.
Low Maintenance Structure
A durable subframe that doesn’t require ongoing treatment or replacement.
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.
Does Spanmor manufacture the composite boards?
No, Spanmor does not manufacture the boards. We select and pair compatible, high-quality composite systems from leading manufacturers to ensure they meet our strict performance and compliance standards.
How do I know which joist spacing to use for composite decking?
Joist spacings and fixing methods must always be selected to align with Spanmor aluminium subfloor span charts and the specific installation requirements of the board.
Are these systems suitable for coastal Australian conditions?
Yes. The combination of aluminium framing and composite decking provides long-term performance specifically suited to Australian conditions, resisting rot and corrosion.
Is the decking surface safe when wet?
Our selected composite boards feature textured finishes that provide a slip-resistant surface, enhancing safety in outdoor environments.
Get the Details. Build with Confidence.
Download brochures, span charts, and spec sheets — or speak to an expert about your subfloor project.
Spanmor Aluminium System - Limited Warranty