Collection: Balau Timber

Balau(Shorea albida), a dense and durable hardwood native to Malaysia, Indonesia, and the Philippines, is a robust choice for heavy construction applications. Known for its strength and resilience, Balau is used in demanding structural environments, including wharfage, sleepers, and shipbuilding. It's important to note that this timber, specifically Shorea albida, differs from the more common Red and Yellow Balau varieties.

Appearance of Balau Timber

Balau’s heartwood displays a rich yellow to brown tone, contrasting with its paler sapwood, which may be up to 50mm wide. With a moderately fine, even texture and interlocked grain, Balau produces a striking stripe figure on the radial surface. Resin pockets are common, and the wood is susceptible to minor pinhole borer damage, giving it a distinctive character that suits various aesthetic and functional uses.

Common Applications of Balau Timber

Balau’s high density and durability make it ideal for heavy construction projects. It is frequently used for wharfage, railway sleepers, and shipbuilding, where its strength is required. Its toughness makes it a reliable choice for other structural applications where stability and longevity are crucial.

Workability of Balau Timber

Despite its density, Balau is relatively easy to work with. The wood is free of silica, making it kinder to cutting equipment; however, resin pockets can lead to resin build-up on tools, requiring regular cleaning. When nailing, pre-drilling is recommended to avoid splitting. Balau can be painted, stained, and polished, providing flexibility in finishes, though it is unsuitable for steam bending. Machining and surface preparation should be done immediately prior to gluing to achieve the best results.

Origin and Availability of Balau Timber

Sourced from native forests in Southeast Asia, Balau is seldom seen in Australia but is highly regarded in specialized construction for its durability. This unique hardwood offers a distinctive aesthetic and reliable performance for heavy-duty projects.

 Very LowLowMediumHighVery High
     
Unit Movement Tangential:      
Unit Movement Radial:      
Tangential :     7.30%
Radial :     4.50%

Very High

High

Reasonably High

Medium High

Medium

Reasonably Low

Low

Very Low

Unseasoned:

S1

S2

S3

S4

S5

S6

S7

S8

Check mark

Seasoned:

SD1

SD2

SD3

SD4

SD5

SD6

SD7

SD8

Check mark
 Structural
No. 1
Structural
No. 2
Structural
No. 3
Structural
No. 4
Structural
No. 5
Unseasoned:F27F17F14F11F8
Seasoned:F27F22F17F14F11
Seasoned:

 

900kg/m3

 

Unseasoned:

 

1150kg/m3

 

Very High

High

Reasonably High

Medium

Low

Very Low

Unseasoned:

J1

J2

J3

J4

J5

J6

Check mark

Seasoned:

JD1

JD2

JD3

JD4

JD5

JD6

Check mark
 White, yellow, pale straw to light brownPink to pink brownLight to dark redBrown, chocolate, mottled or streaky
  
Check mark
Modulus of Rupture - Unseasoned:103
Modulus of Rupture - Seasoned: 
Modulus of Elasticity - Unseasoned:18.3 GPa
Modulus of Elasticity - Seasoned: 
Maximum Crushing Strength - Unseasoned:66 MPa
Maximum Crushing Strength - Seasoned: 
Impact - Unseasoned: 
Impact - Seasoned: 
Toughness - Unseasoned:High - 25 Nm and above
Toughness - Seasoned: 
Hardness - Unseasoned:9.5
Hardness - Seasoned: 
 LowModerateReasonably HighHigh
 (0 - 5 yrs)(5 - 15 yrs)(15 - 25 yrs)(more than 25 yrs)
In-Ground:  Check mark 
 (0 - 7 yrs)(7 - 15 yrs)(15 - 40 yrs)(More than 40 yrs)
Above ground:   Check mark
 (0 - 20 yrs, usually < 5)(21 - 40 yrs)(41 - 64 yrs)(More than 60 yrs)
Marine Borer Resistance:Check mark   
Lyctid Borer Susceptibility:Susceptible
Lyctid Borer Susceptibility - Other: 
Termite Resistance:Not Resistant
1 - non-combustible2 - reasonably non-combustible3 - slightly combustible4 - combustible

Fire Properties Group
Number:

Group Number - Other:

3 if used on MDF or particleboard ≥12mm; veneer thickness 0.6-0.85mm

Average Specific Extinction Area:

<250

Bushfire Resistance:

BAL 12.5 and 19 – All AS3959 required applications