Subfloors

DiamondSteel© Sub-Floor Frame Systems revolutionise foundation construction with ultra-lightweight steel that's one-third the weight of timber yet infinitely more durable. Our prefabricated frames resist moisture, fire, termites, and warping while providing millimetre-perfect level floors for 50 years guaranteed. Transform challenging sites into stable platforms with Australia's most advanced subfloor technology.

No Shrinkage, No Warping, No Problems

DiamondSteel©
Subfloor Frame Systems.

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DiamondSteel© Sub-floor Frames:
83% Lighter, 100% Stronger

The ultimate in functionality with louvre blades allowing 55% airflow (expandable on request). Storm profile louvres available for redirecting water flow while maintaining ventilation to mechanical equipment.

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Superior Moisture and Termite Resistance

Unlike timber subfloors that can rot, warp or attract termites, our DiamondSteel© systems are completely impervious to moisture damage. The galvanised steel construction ensures your foundation remains stable and strong for decades, regardless of ground moisture or weather conditions.

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Precision Service Integration

Every frame features strategically placed, pre-punched service holes with flared edges for safe cable and pipe routing. This eliminates on-site drilling and ensures perfect alignment for electrical, plumbing, and HVAC services from the start.

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Rapid Installation Process

Prefabricated components arrive ready for assembly, reducing installation time by up to 70% compared to traditional methods. No specialised equipment or hot works required – just bolt together with standard tools for immediate results.

From Design to Delivery

Ultra-Lightweight,
Steel Construction.

Zero Hot Works Installation

Subfloor framing system with light gauge steel structure
Specification

DSSF

Con-form Group's DiamondSteel© Sub-Floor Frame Systems represent two decades of engineering innovation in lightweight steel construction. Our G550 galvanised steel frames are custom-designed and manufactured at our Bathurst facility, featuring pre-punched service integration and modular components that install without cutting or welding. Perfect for sloping sites, flood-prone areas, or any project requiring absolute dimensional stability, these frames resist all forms of degradation that plague traditional materials. With our 50-year warranty and certification to Australian Standards, DiamondSteel© subfloors deliver unmatched value through reduced installation time, zero maintenance, and the peace of mind that comes from building on truly solid ground.