Overview

Blackbutt is a strong Australian hardwood used for structural and appearance applications. It offers a clean, light look with robust mechanical performance.

It is a common choice where strength and a contemporary palette are required.

Appearance

• Colour: pale brown to light honey; even tone.
• Grain: straight; medium texture.
• Figure: subtle and uniform.
• Finishing: clear and tinted finishes perform well.

Workability

• Machining: machines well; sharp tooling preferred.
• Fastening: pre-drill; strong fastener retention.
• Gluing: bonds with common structural/fit-out adhesives.
• Finishing: sands cleanly; seal before film coats.

Performance & durability

Good durability and strength with appropriate detailing. For exterior use, ensure ventilation and coating maintenance.

Structural/grades

• Available in structural grades; consult span tables.
• Common in beams, joists, and engineered members.

Typical applications

• Structural framing and beams
• Flooring and stairs
• Exterior cladding and decks (detailed)

Key properties (indicative)

• Mass: medium to heavy
• Durability: good; exterior capable with maintenance
• Movement: moderate; acclimatise prior to install

Source & attribution