The wood we use is pressure treated using a new ACQ (Alkaline Copper Quaternary) green process that poses no danger to human health or to the environment and does not contaminated water. This new process is also called “alkaline copper preservative composite”. The non-toxic and green ACQ process should not be confused with the toxic CCA process.
This preservation technology, which is the basis for ACQ treated wood, has been used commercially in throughout Europe, Asia and the United States since 1991. It is also used in the construction of pressure-treated structures for playgrounds, picnic tables, terraces, patios, docks, etc.
For more information about this process:
Full certification by the Health Canada Pest Management Regulatory Agency (PMRA):
Web site of the manufacturer of the wood preservative formulation ACQ. The ecological impacts of the process are cover on this site:
Canadian Wood Council