(Also known as eucalyptus)
Hardwood 62 lbs. per cubic foot, 5.17 lbs. per board foot
Several species of Eucalyptus called red and gray ironbark are native to Australia where they are most used. Heartwood is red to dark brown, and sapwood is light colored. The heartwood has good decay resistance, and is resistant to some forms of marine borers. The wood is very hard, heavy, strong, and shrinks moderately. Because of its high weight, the wood can be a major disadvantage in many types of boats.