All our timber gate posts are pressure treated to offer long term protection against fungal and insect attack, including termites, for in-ground contact, and general exterior applications. . The green colour from the preservative weathers down to a natural brown and eventually to a natural silver grey. The weathering process does not indicate any loss of preservative.The posts have four way Weathered top to ensure maximum life. Available in softwood, Choose between 125mm 150mm, 175mm or 200mm diameter posts.