Treated timber
End-of-life CCA posts, poles, off-cuts and demolition timber.
CCA treated timber reaches the end of its life everywhere: vineyard and orchard posts, farm fencing, power and telephone poles, building demolition, and the off-cuts from every job that uses it. The copper, chromium and arsenic that protected the wood are still bound into it.
Vineyards and orchards
Farms and fencing contractors
Utilities and pole owners
Demolition and construction
Treated timber is excluded from most reuse and burning pathways. Burning it releases arsenic to air and concentrates it in the ash, so it is kept out of fires, boilers and biomass plants. In most districts the only legal destination is a Class 1 landfill, with the waste disposal levy paid on every tonne. Councils and the timber sector are reviewing the options in 2026.
Treated timber residuals were the first stream through Regen, and have been commercial work since October 2025. Treated timber itself is the next step: the separation has been validated and is now in pilot. The aim is cleaned timber fibre that can go back to use, with the copper, chromium and arsenic taken out of the wood rather than buried with it. Every job ends with an independent lab report.