Sydney Blue Gum (Eucalyptus saligna)
Sydney Blue Gum is an Australian native hardwood timber species that is widely used in general construction and for flooring, furniture and joinery.
Sydney Blue Gum is a large hardwood species growing to a height of 60 metres or more. It occurs natively in forests along the coast of New South Wales and southern Queensland. Sydney Blue Gum is also extensively grown as a plantation species in South Africa and South America, where rapid growth yields timber of much lower density than Australian material.
Sydney Blue Gum is an important general construction timber, particularly in New South Wales. It is widely used for flooring, cladding, fencing, paneling and boat building. Other common applications include landscaping (as garden sleepers), furniture and joinery.
The heartwood of the species ranges in colour from dark pink to a reddish brown. Sapwood is distinctly paler. The grain of Sydney Blue Gum timber is typically straight, with occasional interlocking of grain. Texture is moderately coarse and gum veins are common.
Sydney Blue Gum is a moderately durable timber with a life expectancy for in-ground applications of between eight and 15 years. Untreated sapwood is susceptible to Lyctid borer attack.
Sydney Blue Gum timber is easy to dry relative to most other eucalypts. It is also easy to work, dress and fix. It responds well to most finishes and takes a good polish, making it popular for decorative applications where moderate durability is required.
|Very Low||Low||Medium||High||Very High|
|Very High||High||Reasonably High||Medium High||Medium||Reasonably Low||Low||Very Low|
|Structural No 1||Structural No 2||Structural No 3||Structural No 4||Structural No 5|
|Very High||High||Reasonably High||Medium||Low||Very Low|
|White, Yellow,Pale Straw to Light Brown||Pink to pink brown||Light to dark red||Brown, chocolate, mottled or streaky|
Modulus of Rupture – Unseasoned
Modulus of Rupture – Seasoned
Modulus of Elasticity – Unseasoned
Modulus of Elasticity – Seasoned
Maximum Crushing Strength – Unseasoned
Maximum Crushing Strength – Seasoned
Impact – Unseasoned
Impact – Seasoned
Toughness – Unseasoned
|Medium – 15 – 25 Nm|
Toughness – Seasoned
|Medium – 15 – 25 Nm|
Hardness – Unseasoned
Hardness – Seasoned
(> 25 years)
|(0-20 years, usually <5)||(21-40 years)||(41-64 years)||(>65 years)|
|Marine Borer Resistance|
|Lyctid Borer Susceptibility|
EFH Spread of Flame Index
|EFH Smoke Developed Index|
|Critical Radiance Flux – Lower|
>2.2 and <4.5kWm 2
|Critical Radiance Flux – Higher|
>2.2 and <4.5kWm 2
|Smoke Development Rating|
|Fire Properties Group Number|
1 – Non Combustible
2 – reasonably non combustible
3 – slightly combustible
4 – combustible
Average Specific Extinction Area
|BAL 12.5, 19 and 29 – All AS3959 required applications|
Sydney Blue Gum
The heartwood of this species ranges in colour from dark pink to reddish brown. The paler sapwood is readily distinguishable. Grain is typically straight with occasional interlocking. Texture is moderately coarse and gum veins are common.
Sydney Blue Gum timber is an important general construction timber, particularly in New South Wales. It is widely used for flooring, cladding, fencing, paneling and boat building. Other common applications include landscaping (as garden sleepers), furniture and joinery.
Sydney Blue Gum is easy to work, dress and fix. It responds well to most finishes and takes a good polish, making it popular for decorative applications where moderate durability is required.
The natural appeal, versatility and strength of timber makes it the superior choice for external cladding. Through specification, planning, design and finishing processes, timber cladding not only creates a building of superior strength, acoustic and thermal performance but also creates a place of beauty, style and natural appeal.
When it comes to fencing, timber is your natural choice. A material that is durable, strong and reliable it compliments almost every outdoor landscape and environment. Clear specification, detailed installation and appropriate maintenance will see any timber fence provide a natural and lasting property boundary and back drop for years to come.
Whether for structural or finished flooring applications, timber offers durability, versatility and adaptability. The warmth, strength and natural beauty of timber flooring has proved enduringly popular in a wide variety of interior settings.
Retaining Walls & Landscaping
When it comes to retaining wall, landscape design and construction, timber is the natural choice. A material that is durable, sturdy and reliable, it boasts natural aesthetics that help it blend seamlessly with the outdoors. Careful consideration during the specification and design process will facilitate the creation of a long lasting, durable and eye catching timber retaining wall that will complement its surrounding landscape for years to come.
Timber Joinery Products
Timber joinery products offer a classic, unique and stylish touch to any interior design.
Timber Portal Frames
For buildings that require large spans and column free interiors, timber portal frames provide one of the most aesthetically pleasing solutions. Utilising modern engineering technology, portal frame design transforms timber into a highly effective, efficient and economical structural product. This application guide provides a comprehensive overview of the process of using timber in the specification, fabrication and erection of portal frame structures.