


Developed for efficiency, aesthetics and structural performance.
Material Sustainability
Recyclability: Steel components are 100% recyclable at the end of life.
Longevity: Durable galvanised coating provides extended service life
Acoustic insulation, enhanced by perforated edges and profile fillers, helping to reduce noise and improve interior comfort.
Aesthetically pleasing finish that complements various architectural styles and provides a clean, attractive finish.
Acoustic insulation, enhanced by perforated edges and profile fillers, helping to reduce noise and improve interior comfort.
Easy to handle for safer onsite logistics.
Profile depth: 35mm
Cover width: 900mm
Pitch: 150mm (tighter rib spacing)
Trough width: 75mm
Bearing width: 65mm on purlin
Steel option: S280 in 0.7mm, 0.9mm, 1.2mm
Aluminium option: Rp0.2 165 in 0.90mm, 1.20mm (one-third the weight of steel)
Solid profile only (no perforated variant)
Lightweight Aluminium Option
Aluminium variant weighs approximately one-third that of steel at equivalent thickness, easing handling and reducing overall structural load
Cost-Effective for Short Spans
Designed specifically for 1.30m to 2.80m spans, eliminating overspecification and material waste on shorter applications.
Tighter Rib Spacing (150mm)
More ribs per metre than deeper decks, providing better load distribution and reduced deflection for intermediate support layouts.
Building Types and Applications
The D35 system is ideally suited for lightweight commercial applications:
Lightweight commercial buildings
Industrial facilities with purlin systems
Steel for general use, aluminium for wet or corrosive environments. No need to switch to a different profile family.
Structural Performance Analysis
Span Range & Load Conditions
- 0.70mm Steel: 1.30m–2.00m spans (imposed load)
- 0.90mm Steel: Approximately 2.40m spans (imposed), suction to 2.80m multi-span
- 1.20mm Steel: Approximately 2.80m across most conditions
- Aluminium: Typically 1.30m–2.10m depending on gauge and condition
- Always verify actual span capacity against final design loads with technical data
Material Selection
- Steel S280: General applications, cost-effective, excellent strength-to-weight
- Aluminium Rp0.2 165: Coastal, industrial, or wet environments; one-third the weight of steel
- Both available with polyester, galvanized, or polyurethane coatings
- Specify coating durability based on environment (ZF275 for general use, higher for corrosive)
Bearing & Support
- Minimum 65mm bearing width on purlin flange
Supports must be level and properly aligned
- Use approved fasteners (purlin fasteners or pad fasteners per drawing)
- Ensure purlin spacing aligns with deck span rating
Deflection & Serviceability
- Imposed load: span/200 maximum
- Wind suction: span/150 maximum
- Tighter deflection control benefits waterproofing and finishes
- Check deflection limits when specifying liner trays in built-up systems.
For more information, please download our datasheet, or click here

Monday - Friday 7.30am - 4.00pm
Saturday - Sunday - CLOSED