InfillPlus
InfillPlus® offers a unique combination of engineered timber and bonded fibre cement
Engineered for Performance and Safety
Designed in compliance with AS/NZS 2269 and third-party verified by Advanced Bridge Engineering Systems, InfillPlus® ensures that every project benefits from reliable structural integrity. The addition of a 4.5mm fibre cement sheet protects against timber fibre breakdown, prevents blockage of girder drainage ports, and reduces the risk of tannin staining on concrete surfaces.
About InfillPlus
Infill panels like Big River InfillPlus® are designed to fit into the top of concrete girders, allowing cast in situ decking installation while preventing concrete from entering the girder tub.
At roughly half the weight of all-fibre cement or steel alternatives, InfillPlus® makes handling and installation easier, without sacrificing strength.
Engineered for slip-resistance and tested for dynamic loading, InfillPlus® provides a reliable platform for workers, improving jobsite safety.
Designed in compliance with AS/NZS 2269 and third-party verified by Advanced Bridge Engineering Systems, InfillPlus® ensures that every project benefits from reliable structural integrity. The addition of a 4.5mm fibre cement sheet protects against timber fibre breakdown, prevents blockage of girder drainage ports, and reduces the risk of tannin staining on concrete surfaces.
Engineered for Performance
High strength
InfillPlus® delivers strength, safety, and long-term performance in bridge and infrastructure applications.
Full compliance
Designed in compliance with AS/NZS 2269 and third-party verified by Advanced Bridge Engineering Systems.
Safer Installation
Providing a safe, stable work platform during construction.
Recent Projects

Materials palette channels Mediterranean design
Materials palette channels Mediterranean design into everyday living at boutique Gold Coast community. Big River Group supplied key...

The Rose Fitzroy
With roots deeply entrenched in the local community, iconic pub The Rose, in Fitzroy, Victoria recently underwent a...

Taronga Zoo Installation
Big River’s timber helps build an oasis in the heart of Sydney The design brief for this ‘forever...
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