Big River manufactures a family of performance building products in Australia — from formwork and structural plywood to engineered flooring and decorative panels. We also distribute leading brands from partners like James Hardie, giving you access to a comprehensive range from a single, trusted supplier.
With over 100 years of Australian manufacturing heritage, Big River Group offers a portfolio of own-brand products alongside trusted partner brands — all available through our national network of trade centres.
Engineered, tested, and manufactured at our Australian facilities.
High-performance formwork plywood manufactured at our Grafton mill.
Australian Made Explore ArmourForm →Engineered Australian decorative wood panelling for cabinetry and joinery.
Australian Made Explore ArmourCab →The only engineered hardwood flooring still manufactured in Australia.
Australian Made Explore ArmourFloor →Permanent steel formwork decking for suspended concrete slabs.
Australian Made Explore ArmourDeck →Cost-competitive AAC wall panels, available nationwide.
Australian Made Explore MaxiWall →Steel-reinforced AAC floor panels for residential and commercial.
Australian Made Explore MaxiFloor →Premium Australian and European timber panels for architects and designers.
Australian Made Explore Plytech →We partner with Australia's leading building product manufacturers to give you access to a comprehensive range — all from a single supplier with trade pricing and national distribution.
Australia's leading fibre cement cladding and lining board range, including Scyon Linea, Axon, and Stria.
Explore Range →Australian-made natural timber cladding panels with a 25-year warranty and zero toxins.
Explore Range →High-strength LVL formwork beams and bearers for commercial and civil construction applications.
Explore Range →Looking for a specific brand? Contact your local Big River trade centre. Find a Trade Centre →
Big River Group has been manufacturing building products in Australia since the 1920s. Our Grafton mill — still operational today — combines generations of hardwood expertise with modern manufacturing capability to produce some of the country's most trusted formwork, plywood, and flooring products.
Every product that carries the Armour or Maxi brand is engineered, tested, and manufactured right here in Australia. We source timber from sustainably managed forests and maintain full chain of custody across our supply chain.
As a Responsible Wood certified manufacturer and EWPAA member, we hold ourselves to the highest standards of quality, sustainability, and compliance.
Interested in partnering with Big River? Contact Us →
When every other manufacturer moved offshore, Big River kept making engineered hardwood flooring in Australia. ArmourFloor is the only locally manufactured engineered timber floor on the market — produced at our Grafton facility using Australian hardwood species.
Available in a range of species, grades, and finishes, ArmourFloor delivers the warmth and character of solid timber with the dimensional stability of engineered construction.
Download specifications and compliance documentation for all Big River brands.
Browse Data Sheets →Full-colour brochures and specification guides for every product range.
View Brochures →Need help specifying? Our technical team provides span tables and layouts.
Talk to a Specialist →A Big River trade account gives you access to our full portfolio of own-brand and partner products, with competitive trade pricing, dedicated account management, and streamlined ordering across every brand.
Australian-made products, trusted partner brands, trade pricing, and expert support — all from a single supplier with over 100 years of industry experience.