Sydney Blue Gum

Red Timber Species

Species Name: Sydney Blue Gum

Botanical name(s): Eucalyptus saligna

Size and location information: Sydney Blue Gum is a tall tree, found along the New South Wales coastline extending from Batemans Bay in the south to southern Queensland.

The tree gets its name from both its prevalence around the city of Sydney and the sometimes bluish appearance of its bark. The tree can grow to a height of more than 60 metres with some examples attaining heights in excess of 70 metres. The trunk is generally straight and typically free of branches on its lower half to two thirds.

The species has also been grown extensively in plantations in South Africa. The tree grows extremely rapidly in those conditions, with the resultant timber being of a much lower density (500-600kg/m3) than the mature Australian material.

Description: The timber is usually straight grained with a small percentage showing some interlocking grain. The texture is moderately coarse. The heartwood colour ranges from dark pink to reddish brown. The sapwood is typically distinctly paler in colour and is susceptible to lyctid borer attack. Gum vein and gum pockets are common.

Density: Green: 1070kg/m3, Dry: 850kg/m3

Janka Hardness Rating: Green: 6.4, Dry: 9.0

Shrinkage: 5% radiial, 9% tangential

Durability: In ground: Class 3 Above ground: Class 2

Lyctids Susceptibility: Yes

Termite Resistance (AS3660): No

Strength Group: S3/SD3

Fire Hazard properties:

Workability
Easy to work.

Uses:
Flooring, joinery, furniture, domestic and commercial construction, cladding, panelling and boat building.

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

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