Structural Deck Substrates
Plywood, concrete and steel can form structural deck substrates, while framing systems support decking and transfer loads to the structure.Can't find it? Describe what you need and matching suppliers will come to you.
Structural Deck Substrates
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About Structural Deck Substrates products
A structural deck substrate supports the walking surface and transfers loads to the framing. Secura® Exterior Flooring by James Hardie is listed here as a sheet product; check its installation details for support spacing, fixing requirements and exposure limits before specifying it.
Structural deck substrates
The TreadTech Aluminium Deck Framing System by UNEX Systems provides a framing option, while Hardie™ Panel Compressed Sheet by James Hardie is another listed sheet product. People searching for hardie deck should confirm whether they need the exposed surface, its supporting sheet or the framing beneath it. Set out drainage and ventilation requirements early, and check that the chosen components are compatible.
What should I check when specifying hardie plank decking?
Confirm whether the product is the exposed deck surface or a substrate beneath it. Check the manufacturer’s instructions for support spacing, fixings and suitability for the site.
What does a search for hardie deck need to establish?
Check the product specification to confirm its intended use and whether it provides structural support. The deck framing and substrate must suit the selected surface material.
How do I choose a substrate for an outdoor deck?
Start with the deck design, site exposure and specified framing. Confirm that the substrate’s installation requirements align with the consented plans and the finish above it.



