The common name “Blackbutt” comes from the regular appearance of a blackened base on the trunk of the tree, caused from fires. Blackbutt primarily grows in the coastal regions of southern NSW all the way up to south east QLD. It has a quick growth rate and is easily regenerated, making it a popular species to grow in plantations and a readily available timber on the east coast of Australia. The heartwood colour ranges from a yellowish brown to light brown, with a fairly straight grain and even texture with gum veins sometimes present. Blackbutt has a very good fire rating and is one of the 7 timber species found suitable for bushfire prone areas.
The common name “spotted gum” is used for four different highly durable and dense Corymbias (spotted gum was previously classified as a eucalypt. The different species commonly referred to as spotted gum only differ in appearance, not in durability or other properties. The heartwood of spotted gum ranges from a light brown to a dark reddish-brown. The timber often comes with an attractive wavy grain with coarse and uneven texture; it also is noted as having a “greasy” feel when you run your hand over machined products. Spotted gum is grown throughout the eastern part of Australia and in some parts of WA and SA