The Best Can You Use Pressure Treated Lumber For Raised Garden Beds Ideas. Cedar is a commonly harvested softwood used mostly for exterior decks and siding. Before 2003, a dangerous chemical, chromated copper arsenate (cca), was used to treat wood.
Web can you use pressure treated wood to build raised beds? Pressure treatments make wood less porous, limiting the ability of bacteria and fungi to colonize the grain and break it down. However, the epa or environmental protection agency banned the sale and use of chromated copper arsenate or cca treated.
