Board · 8–25 mm
Timber-Plastic Composite — indicative fig. C·57
Fire Combustible CombustibleEmbodied carbon 1.00kgCO₂e/kg Low–mediumCompressive 11MPa StructuralDesign life 28yr
Extruded wood-plastic composite boards for decking and cladding; properties vary by formulation and profile.
01 Physical
Density 1280kg/m3
Specific gravity 1.15
Porosity 2%
Water absorption 0.51%
Hardness 95
UV resistance excellent
Chemical resistance good
pH tolerance 4-10
Surface roughness 25µm
02 Mechanical
Tensile strength 19MPa
Compressive strength 11MPa
Flexural strength 25.41-52.32MPa
Impact resistance moderate
Creep resistance moderate
03 Thermal
Thermal conductivity 0.2W/m·K
Specific heat 1600J/kg·K
Thermal expansion 35×10⁻⁶/°C
04 Compliance & Fire First question
Combustibility class combustible
Ignition temp 350°C
Flame spread index 3
Smoke dev. index 4.5
Heat release rate 2.5
05 Sustainability & Health
Embodied carbon 1
Carbon footprint 1
Embodied energy 15MJ/kg
Recyclability 100%
Recycled content 92.5%
Renewable content 50%
Circular score 85
VOC emissions 0
Toxicity rating non-toxic
LEED contribution 4
06 Durability · Cost · Logistics
Expected lifespan 27.5
Maintenance interval 12
Warranty period 25
Material cost (range) 84, 112
Material cost (per unit) 98
Lead time 3
Lifecycle cost 150
Annual maintenance 5
Market availability excellent
07 Assessment
Advantages
- Zero maintenance required - no sealing, staining or painting
- 25-30 year warranty period
- Excellent termite resistance (CSIRO 9.6-10/10 rating)
- Won't rot, crack, splinter or warp
- UV stable with minimal fading
- Slip resistant surface (R11/P5 wet rating)
- 90-95% recycled content
- 100% recyclable at end of life
- Suitable for all Australian climate zones
- BAL-40 bushfire rating available
Constraints
- Higher initial cost than treated timber ($84-299/m²)
- Thermal expansion requires careful installation (3-4mm/3m)
- Some colour fading over time (stabilises after 12 months)
- Requires specific hidden clip systems for best results
- Limited structural capacity - decorative use only
- Can retain heat in direct sunlight
- Performance Solution required for NCC compliance
08 Applications
A1 Residential and commercial decking
A2 External wall cladding systems
A3 Privacy screening and fencing
A4 Marine boardwalks and jetties
A5 Pool surrounds and wet areas
A6 School playgrounds and public spaces
A7 Balcony and terrace flooring
A8 Soffit and fascia applications
A9 Architectural feature elements
09 Sources & Standards
Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.