Why don’t you call us and get the pressure treated wood for your wood which contact with the ground and above of it usually could get wet and it causes being attacked by fungi and insects and decay. Our company offers you to use pressure treated wood if you would like to keep your wood lasts more than a few years. Several new wood preservatives developed in recent years have added to the variety of preservatives available. Wood preservatives are broadly classified as either water based or oil type, depending on the chemical composition of the preservative.