Appearance of Tasmanian Oak Timber
Tasmanian oak is light in colour, ranging from straw to reddish brown, with intermediate shades of cream to pink. Its neutral tones make it a popular choice for interiors, as it readily accepts stains and finishes, allowing for easy matching with other materials and furnishings. The timber’s consistent grain and smooth texture contribute to its aesthetic appeal, particularly in high-end joinery and furniture.
Applications of Tasmanian Oak Timber
Tasmanian oak is well-suited for protected structural applications, such as timber framing, but it is most commonly used for interior purposes. Flooring, paneling, and furniture are popular uses, as are high-end joinery applications. Beyond construction and interior design, Tasmanian oak is used for agricultural implements, oars, cooperage, boxes, crates, paper pulp, and plywood manufacturing. Its adaptability and attractive finish make it a staple in both residential and commercial projects.
Workability of Tasmanian Oak Timber
Tasmanian oak is a strong and stable timber, offering excellent all-around workability. It planes, sands, and finishes well, and readily accepts stains and polishes, allowing for a superior finish. The timber is easy to glue and is particularly suitable for steam bending, making it ideal for intricate furniture designs and internal applications. While it is not as durable for external uses, its workability and aesthetic qualities make it a popular choice for interiors.
Durability of Tasmanian Oak Timber
Tasmanian oak has low to moderate durability and is best suited to indoor applications or protected environments. Unlike Victorian ash, it is susceptible to lyctid borer attack, so appropriate care should be taken when used in susceptible areas.
Origin and Availability of Tasmanian Oak Timber
Tasmanian oak is sourced from native forests across Tasmania and is marketed nationally. In Victoria and New South Wales, it is sometimes referred to as Victorian ash, though Tasmanian oak includes messmate, resulting in a wider colour range. It is readily available across Australia in various forms, including sawn timber, veneers, and engineered products.
Tasmanian oak’s versatility, attractive appearance, and excellent workability have established it as a top choice for a wide range of interior and construction applications, making it a staple in Australian timber markets.
Very Low | Low | Medium | High | Very High | |
---|---|---|---|---|---|
![]() | ![]() | ![]() | |||
Tangential : | 13.30% | ||||
Radial : | 6.60% | ||||
Unit Movement Tangential: | 0.36% | ||||
Unit Movement Radial: | 0.23% |
Very High | High | Reasonably High | Medium High | Medium | Reasonably Low | Low | Very Low | |
Unseasoned: | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 |
![]() | ||||||||
Seasoned: | SD1 | SD2 | SD3 | SD4 | SD5 | SD6 | SD7 | SD8 |
![]() |
Structural No. 1 | Structural No. 2 | Structural No. 3 | Structural No. 4 | Structural No. 5 | |
Unseasoned: | F14 | F11 | F8 | F7 | F5 |
Seasoned: | F22 | F17 | F14 | F11 | F8 |
Seasoned: | 650kg/m3 |
---|---|
Unseasoned: | 1050kg/m3 |
Very High | High | Reasonably High | Medium | Low | Very Low | |
Unseasoned: | J1 | J2 | J3 | J4 | J5 | J6 |
![]() | ||||||
Seasoned: | JD1 | JD2 | JD3 | JD4 | JD5 | JD6 |
![]() |
White, yellow, pale straw to light brown | Pink to pink brown | Light to dark red | Brown, chocolate, mottled or streaky | |
![]() |
Modulus of Rupture - Unseasoned: | 63 MPa |
---|---|
Modulus of Rupture - Seasoned: | 110 MPa |
Modulus of Elasticity - Unseasoned: | 13 GPa |
Modulus of Elasticity - Seasoned: | 17 GPa |
Maximum Crushing Strength - Unseasoned: | 30 MPa |
Maximum Crushing Strength - Seasoned: | 63 MPa |
Impact - Unseasoned: | 14 J |
Impact - Seasoned: | 21 J |
Toughness - Unseasoned: | Medium - 15 - 24 Nm |
Toughness - Seasoned: | Medium - 15 - 24 Nm |
Hardness - Unseasoned: | 3.4 |
Hardness - Seasoned: | 4.9 |
Low | Moderate | Reasonably High | High | |
(0 - 5 yrs) | (5 - 15 yrs) | (15 - 25 yrs) | (more than 25 yrs) | |
In-Ground: | ![]() | |||
(0 - 7 yrs) | (7 - 15 yrs) | (15 - 40 yrs) | (More than 40 yrs) | |
Above ground: | ![]() | |||
(0 - 20 yrs, usually < 5) | (21 - 40 yrs) | (41 - 64 yrs) | (More than 60 yrs) | |
Marine Borer Resistance: | ![]() |
Lyctid Borer Susceptibility: | |
---|---|
Lyctid Borer Susceptibility - Other: | Sapwood is generally susceptible. Tasmanian Oak is usually sold free of sapwood. |
Termite Resistance: | Not Resistant |
Critical Radiance Flux - Lower: | >2.2 and <4.5 |
---|---|
Critical Radiance Flux - Higher: | >2.2 and <4.5 |
Smoke Development Rate: | <750 |
1 - non-combustible | 2 - reasonably non-combustible | 3 - slightly combustible | 4 - combustible | |
Fire Properties Group |
Average Specific Extinction Area: | >250 |
---|---|
Bushfire Resistance: | Not tested |