Engineered Girder Beams
Engineered Girder Beams have a superior strength to weight ratio increasing live load capacities On structures being...
Structural Laminated Veneer Lumber (Radiata Pine/ Pinasta Pine/ Karri)
CR-19-02 F27 & CR-19-01 F22 - or to specification
About Engineered Girder Beams
Engineered Girder Beams have a superior strength to weight ratio increasing live load capacities On structures being 25- 30% stronger and 22% lighter also extending the life of the structure. Engineered bridge beams are certified to replace F22 & F27 existing timbers of the same size as a direct replacement for girders, corbels and headstocks in timber bridges.
Engineered Girder Beams have been developed and designed to replace F22 and F27 round or sawn existing hardwoods. Being engineered means specification and performance are the same every time no variances compared to round timbers, a direct replacement for round logs that are becoming scarce. Engineered Girder Beams have a superior strength to weight ratio increasing live load capacities on structures being 25- 30% stronger and 22% lighter also extending the life of the structure.
Independent structural analysis of the Big River Structural Bridge Girders has been tested and detailed in the attached certification and concluding that they are structurally adequate to act as a direct replacement for the rounds used timbers in bridges as defined. The analysis was carried out using principles of structural mechanics, Australian Structural Timber code AS1720.1 and meeting the requirements of the National Construction Code of Australia.
Technical Specifications & Variants
Full Specifications
| Standard | AS/NZS 4357 Structural Laminated Veneer Lumber |
| Treatment | H5 Full Treatment |
| Beam Sizes | (CR-19-02 F27 & CR-19-01 F22) - or to specification |
| Plywood Grade | CD |
| Stress Grade | F22-F27 |
| Weight | 780 kg/m3(Pre-Treated) |
| Timber Species | Radiata Pine/ Pinasta Pine/ Karri |
| Moisture Content | 0-12% ex mill untreated |
| Tolerance | Thickness -0+6% |
| Bond Type | A Bond, Phenolic/Resorcinol |
| Formaldehyde Emission | Super E0 |
| Loading | T44 SM1600 |
| Compliance | AS5100 & AS1720 |
| Certification | Advanced Bridge Engineering Systems Australia (ABES). |
Where to Use Engineered Girder Beams
Civil Infrastructure
Engineered for timber bridges and civil infrastructure projects.
Structural Commercial Applications
Suitable for structural and load-bearing applications.
Downloads & Documentation
Frequently Asked Questions
What are the benefits on structural LVL engineered bridge girder beams?
Engineered Girder Beams have a superior strength to weight ratio increasing live load capacities on structures being 25- 30% stronger and 22% lighter also extending the life of the structure.
Engineered bridge beams are certified to replace F22 & F27 existing timbers of the same size as a direct replacement for girders, corbels and headstocks in timber bridges.
See documents to download, or please be in touch with our expert team.
What compliance, standards and certification do Big River Bridge Girders have?
Conforms to AS5100 & AS1720 and AS/NZS 4357 for Structural Laminated Veneer Lumber.
Independent Structural Design Certificate by Advanced Bridge Engineering Systems Australia (ABES).
See documents to download, or please be in touch with our expert team.
Are there project case studies of the application of Big River Bridge Girders?
There are timber bridge case studies right across Australia that use and specify locally made Big River Bridge Girders. We can also provide extensive local council and government references as requested to give you peace of mind you are with the timber bridge experts.
Big River has been our go-to supplier for formwork and structural ply for over five years. Their crane truck delivery saves us time on every job, and the estimation team is spot on with quantities. It's rare to find a supplier that actually understands what builders need.
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