Accoya® wood represents a major development in wood technology. It enables the consistent supply of durable, non-toxic, dimensionally stable wood. This makes it an ideal material for manufacturing high performance, exterior timber products like wood siding and outside decking. Accoya is manufactured through the acetylation of plantation grown softwood. Accoya® sustainable timber provides compelling environmental advantages over scarce slow growing hardwoods, woods treated with toxic chemicals, and non-renewable carbon-intensive materials such as plastics, steel and concrete. The sustainability of wood varies, but the certifications that Accoya has been awarded provides assurance that our product is truly sustainable.