Scientific Name: Acacia melanoxylon
Origin: Native to Australia, particularly in Tasmania and southeastern regions.
CITES Status: Not currently listed under CITES regulations, but sustainable forestry practices are encouraged.
Use in Guitar Making
Blackwood is used for acoustic guitar backs and sides, soundboards, necks, and fingerboards. It is often considered an alternative to koa due to its similar tonal properties and aesthetic appeal. Many high-end acoustic guitars feature solid Blackwood construction.
Tonal Properties
Blackwood offers a well-balanced tone with warm midrange, clear trebles, and strong bass response. It has a tonal character that sits between mahogany and rosewood, providing a dynamic and versatile sound suitable for various playing styles.
Hardness and Workability
Janka Hardness Rating: Approximately 1,160 lbf (5,160 N)
Blackwood is a medium-density hardwood that is relatively easy to work with. It bends well for acoustic guitar construction and takes glue, stain, and finishes effectively. However, some interlocking grain patterns may require careful handling to prevent tear-out.
Grain Structure and Porosity
Blackwood has a fine to medium texture with a straight to wavy grain. Figured varieties, including curly and flamed Blackwood, are highly prized for their visual appeal. It has a moderately open grain, often requiring some grain filling before finishing.
Sustainability and Ethical Considerations
While not currently under CITES restrictions, Blackwood’s availability is affected by deforestation and limited natural growth. Sustainable plantation-grown Blackwood is increasingly used to ensure responsible sourcing and long-term availability.
Blackwood continues to grow in popularity among luthiers due to its tonal qualities, workability, and aesthetic appeal. With responsible harvesting, it remains a sustainable choice for both acoustic and electric guitar construction.
