SYDNEY BLUE GUM

The colour can be heartwood yellowish-brown or orange-brown when first cut, turning darker with age to brown or deep reddish brown. Sapwood white, pale yellow or buff and sharply differentiated from heartwood.

Technical Data

  • Species Name: Sydney Blue Gum

  • Botanical Name: Eucalyptus saligna

  • Size and location information:The two most common Red Ironbarks are Mugga Ironbark (Eucalyptus sideroxylon) and Narrow-leaved Red Ironbark (E. creba). A third Ironbark that also falls into this category is Broad-leaved Red Ironbark (E. fibrosa). Mugga Ironbark extends from Victoria through the western slopes of NSW into southern Queensland. Narrow-leaved Red Ironbark is found in the coastal, tablelands and western plains areas of central to northern NSW and extends well up into Queensland in a belt between the coast and the just west of the Great Dividing Range. Broad-leaved Red Ironbark has a discontinuous distribution from the south coast of NSW to central coastal Queensland.

  • Density: Green: 1200kg/m3 Dry: 1100kg/m3

  • Shrinkage: 3.5% Radial, 7.0% tangential

  • Janka Hardness Rating: Dry: 11.9

  • Durability: In ground: Class 1 Above ground: Class 1

  • Lyctids Susceptibility: Yes

  • Termite Resistance (AS3660): Yes

  • Strength Group: S2/SD3

  • Fire Hazard Properties: Spread of flame: 5; Smoke Development: 3

  • Workability: The material is very hard to work, limiting some applications requiring fine detailing.

  • Uses: Applications include heavy engineering, marine structures, poles, boat building, framework, flooring and decking.

  • Availability: Plentiful. Select joinery grade grade tends to have a lot shorter length spec.