Collection: Yellow Stringybark Timber

Yellow stringybark is a medium to large hardwood species native to southern New South Wales and eastern Victoria. Known for its yellow to yellowish-brown heartwood and paler sapwood, this timber is valued for its durability, strength, and aesthetic appeal. It has been widely used in heavy construction, furniture, and outdoor structures. With its fire-retardant properties and versatility, yellow stringybark is a popular choice for a variety of applications, including structural and decorative uses.

Appearance of Yellow Stringybark Timber

The heartwood of yellow stringybark is yellow to yellowish-brown, contrasting with its distinctly paler sapwood. The grain is medium to fine, predominantly straight but occasionally interlocked, adding visual interest. Gum veins and bug holes are common features, giving the timber a unique character.

Applications of Yellow Stringybark Timber

Historically, yellow stringybark was primarily used in heavy construction, such as piles, poles, bearers, and stumps, as well as for wood chips. Today, it is widely utilised for flooring, decking, and furniture. Its durability and strength make it an excellent choice for outdoor structures like pergolas, steps, and hand railings. When kiln-dried, yellow stringybark can also be used as a reliable structural timber.

Workability of Yellow Stringybark Timber

Yellow stringybark machines and sands well, making it an ideal material for flooring and other smooth finishes. It is unsuitable for steam bending, and pre-drilling is recommended for nailing and screwing due to its density. The timber readily accepts most coatings and stains, with oil-based finishes yielding particularly attractive results. Polyurethane glues are recommended for bonding due to the timber’s natural density.

Durability of Yellow Stringybark Timber

Yellow stringybark is equivalent to fire-retardant treated timber when tested in accordance with AS/NZS 3837. This classification makes it a suitable choice for bushfire-prone areas, with its bushfire rating expected to remain unchanged under updated standards.

Origin and Availability of Yellow Stringybark Timber

Yellow stringybark is primarily found in southern New South Wales and eastern Victoria. It is readily available in these regions, with its applications ranging from residential to industrial uses.

Source of Yellow Stringybark Timber

Yellow stringybark is sustainably harvested from native forests, ensuring a responsible supply for construction, furniture, and other applications. Its balance of durability, workability, and fire-retardant properties makes it a valuable resource in Australia’s timber industry.

 Very LowLowMediumHighVery High
    Check markCheck mark
Tangential :    7.50%
Radial :    4.30%
Unit Movement Tangential:   0.37% 
Unit Movement Radial:   0.27% 

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:F17F14F11F8F7
Seasoned:F27F22F17F14F11

Seasoned:

885kg/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:86 MPa
Modulus of Rupture - Seasoned:132 MPa
Modulus of Elasticity - Unseasoned:14 GPa
Modulus of Elasticity - Seasoned:17 GPa
Maximum Crushing Strength - Unseasoned:45 MPa
Maximum Crushing Strength - Seasoned:76 MPa
Impact - Unseasoned:17 J
Impact - Seasoned:15 J
Toughness - Unseasoned:Medium - 15 - 24 Nm
Toughness - Seasoned:Medium - 15 - 24 Nm
Hardness - Unseasoned:6.7
Hardness - Seasoned:8.6
 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:Not Susceptible
Lyctid Borer Susceptibility - Other: 
Termite Resistance:Resistant
 012345678910
EFH Spread-of-Flame Index:         
EFH Smoke-Developed Index:         

Critical Radiance Flux - Lower:

>2.2 and <4.5

Smoke Development Rate:

<750

1 - non-combustible2 - reasonably non-combustible3 - slightly combustible4 - combustible

Fire Properties Group
Number:

Group Number - Other:

>2.2 and <4.5

Average Specific Extinction Area:

<250

Bushfire Resistance:

BAL 12.5 and 19 – All AS3959 required applications