I’ve heard these chemicals in pressure treated lumber are dangerous, is this true?
April 11, 2011
Up until 2003 pressure treated wood was manufactured using a chromated copper arsenic (CCA) treatment process, which raised certain health concerns. Due to these health concerns, pressure treated wood manufacturers have phased out the CCA process. For more information, click here to read Health Canada’s assessment of CCA. Since 2003, pressure treated wood has been manufactured using an alkaline copper quaternary (ACQ) treatment process, which has been approved as safe for humans and animals. Due to its treatment, however, pressure treated lumber should never be burned. Visit our Pressure Treated Deck page for more information.
