composite / Timber-Based Composite / Glue-Laminated Timber
Radiata Pine, glue-laminated beam, various sizes (Specified by section size)
GL10-GL13 radiata pine glulam beams with predictable structural properties and long-span capability.
Atlas code
COM-TBC-GLT-001
At-a-glance signals
GL10-GL13 radiata pine glulam beams with predictable structural properties and long-span capability.
Overview
Executive summary
Radiata pine glulam is a glued-laminated structural timber product manufactured in GL10-GL13 grades for beams, columns and frames. It provides predictable structural performance and long, straight spans.
Best when…
- Superior strength-to-weight ratio - approximately 900kg CO2 stored per m³
- Dimensionally stable with minimal shrinkage and warping
- Available in lengths up to 18m with consistent properties
- Easily machined and modified on-site with standard tools
- Renewable resource from certified sustainable plantations
- Fire resistant with predictable charring rate
- Cost-effective compared to steel for many applications
- Aesthetically pleasing natural appearance when exposed
- Compatible with standard timber connectors and fixings
- Local manufacture reduces transport emissions
Top advantages
- 01 Superior strength-to-weight ratio - approximately 900kg CO2 stored per m³
- 02 Dimensionally stable with minimal shrinkage and warping
- 03 Available in lengths up to 18m with consistent properties
- 04 Easily machined and modified on-site with standard tools
- 05 Renewable resource from certified sustainable plantations
Top limitations
- 01 Susceptible to moisture damage if not properly protected
- 02 Requires preservative treatment for weather-exposed applications
- 03 Limited in very high load or long span applications
- 04 Quality dependent on adhesive bond integrity
- 05 Natural variability in timber properties between batches
Technical
Physical ·9
- Density
- 550 kg/m3 Vicbeam GL10 pine glulam data.
- Specific gravity
- 0.51
- Porosity
- 65 %
- Water absorption
- 130 %
- Hardness
- 3.2
- UV resistance
- Low // Requires coating for exterior use
- Chemical resistance
- Moderate // Good with alkaline, poor with acids
- pH tolerance
- 5-9
- Surface roughness
- 12 µm
Mechanical ·7
- Tensile strength
- 11 MPa Tension strength ft for GL10.
- Compressive strength
- 26 MPa Compression strength fc for GL10.
- Flexural strength
- 22 MPa Bending strength fb for GL10.
- Shear strength
- 3.7 MPa Shear strength fs for GL10.
- Poisson's ratio
- 0.35
- Impact resistance
- 35
- Creep resistance
- Moderate // Time-dependent deformation factor j₂ = 2.0
Sustainability & Health
Embodied carbon & energy ·7
- Embodied carbon
- -1.8
- Carbon footprint
- -900
- Embodied energy
- 3.5 MJ/kg
- Water footprint
- 350 L/kg
- Recycled content
- 0 %
- Renewable content
- 99 %
- Circular score
- 85
Compliance & Fire
Fire performance ·6
- Combustibility class
- Combustible // C1.1(a)(vi) per BCA
- Fire resistance level
- 30-120 minutes // Depends on section size
- Ignition temp
- 280 °C
- Flame spread index
- 8
- Smoke dev. index
- 5
- Heat release rate
- 150
Cost & Lifecycle
Capex & lead time ·6
- Material cost (range)
- $800-2500/m³ // Varies by grade and treatment
- Material cost (per unit)
- $45-180/lineal metre // Typical 240x45 to 600x130
- Lead time
- 1-6 weeks // Standard to custom sizes
- Lifecycle cost
- $1200-3000/m³ // 50-year assessment
- Annual maintenance
- $5-15/m² // Coating maintenance if exposed
- Market availability
- High // Readily available nationally
Service life & durability ·3
- Expected lifespan
- 50-100+ years // In protected conditions
- Maintenance interval
- 5-10 years // Coating renewal if exposed
- Warranty period
- 15-25 years // Treatment warranty
Layer D
Where it's used
Roof beams and rafters in residential and commercial construction
Floor bearers and joists for multi-storey construction
Lintels over windows and door openings
Portal frame structures for industrial buildings
Exposed architectural beams in feature applications
Bridge girders and pedestrian walkways
Curved architectural members and arches
Posts and columns in post-and-beam construction
Verandah and pergola structures
Mass timber construction components