Iron Bark

Ironbark (Eucalyptus sideroxylon, Eucalyptus crebra, and other species) is a premium Australian hardwood known for its incredible density, hardness, and durability. Its heartwood varies from deep red to dark brown, while the grain is typically tight and interlocked, contributing to its extreme toughness. This timber is highly resistant to fire, termites, and moisture, making it an excellent choice for structural applications, outdoor decking, and high-traffic flooring. While its density makes it difficult to machine, skilled woodworkers appreciate its longevity and stunning finish. Ironbark is commonly used in bridges, sleepers, heavy construction, and premium furniture, offering unmatched durability in demanding environments.

Key Features:

• Deep red to dark brown heartwood with a fine, interlocked grain

• One of the hardest and most durable Australian hardwoods

• Naturally resistant to fire, termites, and decay

• Excellent for heavy-duty structural and outdoor use

• Difficult to machine but finishes beautifully with proper treatment

Common Uses:

• Structural beams and heavy construction

• Decking and outdoor furniture

• High-traffic flooring and staircases

• Bridge and wharf construction

• Railway sleepers and fencing

Sustainability:

Ironbark is harvested from sustainably managed forests in Australia, ensuring responsible sourcing. Due to its slow growth rate, careful forestry management is crucial to maintaining its availability. Using recycled Ironbark or plantation-sourced timber can further reduce environmental impact.

Density & Hardness:

• Density: Approximately 1100–1300 kg/m³

• Janka Hardness: Around 13.0–16.0 kN (extremely hard, requires carbide tools for machining)