Australia Targets 32.5 Million Treated Timber Vineyard Posts

Australia Addresses End-of-Life Timber Posts

Australia's wine industry, led by South Australia, is advancing a national stewardship scheme to manage end-of-life vineyard posts. The Product Stewardship Centre of Excellence, in partnership with the South Australian Wine Industry Association (SAWIA), aims to finalize the scheme's design by late 2027.

Research from the University of the Sunshine Coast, conducted for the Timber Circularity Project, estimates that 32.5 million posts are currently stockpiled across the country. An additional 85.6 million posts remain in active vineyards nationwide.

Of this substantial volume, 80 percent is treated with copper chrome arsenate (CCA), a preservative that allows the timber to last three to four decades in service across various applications, including vineyard trellises, utilities infrastructure, landscaping, and construction.

Government and Industry Backing

The initiative addresses the annual removal of between 10,300 and 26,100 tonnes of CCA-treated posts from vineyards. Planning for this national scheme dates back to a 2024 prospectus, which the Product Stewardship Centre of Excellence helped author for the industry’s Treated Timber Product Stewardship Working Group, with funding from Wine Australia.

This prospectus informed the national project, which was formally announced by the South Australian Government in 2025. Both the South Australian and Australian Governments have committed A$800,000 to support the work.

The Centre states that the scheme aims to better manage end-of-life CCA-treated timber nationally, supporting industries that use the material while contributing to Australia’s circular economy objectives. A steering committee comprising representatives from the viticulture industry, timber preservers, forestry, waste management, and resource recovery oversees the project.

Reuse Pilot Shows Economic Viability

The scheme will explore various end-of-life solutions and alternative materials, followed by the creation of a financial model and assessment of regulatory frameworks. A reuse pilot in South Australia, a collaboration between the FABAL Group and the University of the Sunshine Coast, has already demonstrated success in processing stockpiled posts for new uses, such as fencing.

This mobile unit can process 600 posts daily. Preliminary modeling by Forest and Wood Products Australia (FWPA) indicates that these reused posts can be sold for more than their processing cost.

Factoring in current disposal expenses, which often make licensed landfill cost-prohibitive for CCA-treated timber, growers could realize potential savings of up to A$3,000 per hectare by opting for reuse.

Implications for Asia's Building Materials Sector

The development of Australia's national stewardship scheme for end-of-life CCA-treated timber could set a precedent for managing similar waste streams globally, potentially influencing material sourcing and waste management practices in Asia.

As Australia seeks sustainable solutions for its 32.5 million stockpiled and 85.6 million standing treated timber posts, there may be an increased demand for alternative, non-toxic, or recycled materials in applications like landscaping, infrastructure, and construction.

This could create new opportunities for Asian manufacturers of recycled timber products, composite materials, or other sustainable building materials to supply markets looking for circular economy solutions.

Asian procurement teams and specifiers should monitor the scheme's design, due by late 2027, for insights into future material specifications and potential shifts in the treated timber supply chain.