Specs of available Hawai'ian Eucalyptus lumber vary throughout the year.
Hawai'ian Eucalyptus (Eucalyptus Robusta): Originally from coastal areas of eastern Australia, this species was introduced to the Big Island of Hawai'i for reforestation when cane and cattle farms began to shrink. It grows in plantation stands on the Hamakua coast on the eastern side of the Big Island. These stands are managed by the Kamehameha school district of Hawai'i, which has released permits to harvest as lumber. Proceeds from this release go back into the school district's programs for the benefit of Hawai'ians.
Hawai'ian Eucalyptus wood: The heartwood of this lumber is red and durable. The sapwood is considerably paler. This lumber has grain that is somewhat coarse and sometimes interlocked.
Uses: In Hawai'i it is used as decking and flooring. As a flooring wood it has appealing warm reddish through to golden colors, as can be seen in the photo at the head of this page. Traditionally, round pole lumber of Eucalyptus Robusta was used for fencing in Australia. Due to the durability and marine borer resistance of the heartwood of this lumber, it has also been used as wharf timbers.
Hardness: Janka rating - 1,250.
Illustrated above: Hawaiian Eucalyptus after milling as flooring..