Timber
One of Australia’s most popular hardwoods, improved.
Australian Oak is ASH’s brand of Tasmanian Oak and Victorian ash (no longer available) and is made up of three species – Eucalyptus Regnans, Eucalyptus Delegatensis and Eucalyptus Obliqua (Messmate).
Tasmanian Oak is a light-coloured hardwood that is easy to work with and produces a beautiful warm finish. It offers an appealing tonal depth and is renowned for its excellent staining qualities, making it easy to match with existing finishes.
What makes our Australian Oak truly unique is how production improves its use and performance. Once our slabs are quarter sawn to ensure optimal stability, our timber is cut perfectly straight to give you a superior Australian Oak.
As a strong and stable hardwood, Australian Oak offers great workability due to its high sanding and gluing potential. Suitable for a range of uses, it is the perfect timber for interior applications like furniture and joinery, staircase components, DAR & sawn, flooring and lining.
Australian Oak has previously incorporated Victorian ash which is no longer available. After significant time and investment, we have found the best and most viable alternative to replace Victorian hardwoods is Glacial Oak – ASH’s brand of American Oak.
Glacial Oak is a stunning yet sustainable hardwood of vast availability that exceeds Victorian ash in terms of durability, stability and appearance. Learn more here.
| Colour | Blonde to straw to light brown |
| Grain | Straight open and even grained with a uniform texture. |
| Density | Medium density 660 KG/m3 at 12% moisture content. Seasoned to comply with the Australian Standard AS2796 (9% – 14%) with the average moisture content ranging between 10% and 12%. |
| Impact Resistance | High – 18 joules |
| Janka | 4.9 kN (seasoned) |
| Unit Shrinkage (KD) | Measurable movement in service – LowRadial: 0.22% of board dimension per 1% moisture content change. Tangential: 0.35% of board dimension per 1% moisture content change |
| Stability | High (quarter sawn) |
| Cutting | Very Good |
| Bending | Satisfactory |
| Glueing | Very Good |
| Lyctus Susceptible | Susceptible |
| Nail holding | Very Good |
| Durability | Above ground – Class 3 Below ground – Class 4 (Refer to IronAsh for clear H3 treatment) |
| Fire | Refer Australian Standard AS1530 Part 3 and Building Code of Australia Ignitability index: 14 Spread of flame index: 8 Heat Evolved index: 7 Smoke development index: 3 Flooring AS/ISO 9239.1 Critical Radiant Heat Flux: More than 2.2kW/m2 and less than 4.5kW/m2 Smoke development Rate: Less than 750% -min Wall and Ceiling lining AS/NZS3837: 1998 Average extinction area: less than 250m2/kgMaterial Group No: 3 (unless coated to meet Group 1 & 2) Bushfire Attack level: BAL 19 High (BAL-29 and BAL-40 in proprietary systems) |
| Colour | Blonde to straw to light brown |
| Grain | Straight, open and even. Occasionally course grained or fiddle backed. Growth rings are visual and usually conspicuous. |
| Moisture Content | Medium density 680 KG/m3 at 12% moisture content. Seasoned to comply with the Australian Standard AS2796 (9% – 14%) with the average moisture content ranging between 10% and 12%. |
| Impact Resistance | High – 18-20 Joules |
| Janka | 5.7 kN (seasoned) |
| Unit Shrinkage (KD) | Measurable movement in service – Low Radial: 0.23% of board dimension per 1% moisture content change. Tangential: 0.36% of board dimension per 1% moisture content change |
| Stability | High (quarter sawn) |
| Cutting | Very Good |
| Bending | Satisfactory |
| Glueing | Very Good |
| Lyctus Susceptible | Susceptible |
| Nail holding | Very Good |
| Durability | Above ground – Class 3 Below ground – Class 4 (Refer to IronAsh for clear H3 treatment) |
| Fire | Refer Australian Standard AS1530 Part 3 and Building Code of Australia Ignitability index: 14 Spread of flame index: 8 Heat Evolved index: 7 Smoke development index: 3 Flooring AS/ISO 9239.1 Critical Radiant Heat Flux: More than 2.2kW/m2 and less than 4.5kW/m2 Smoke development Rate: Less than 750% -min Wall and Ceiling lining AS/NZS3837: 1998 Average extinction area: less than 250m2/kgMaterial Group No: 3 (unless coated to meet Group 1 & 2) Bushfire Attack level: BAL 19 High (BAL-29 and BAL-40 in proprietary systems) |
| Colour | Blonde to pale brown |
| Grain | Strong linear grain with a uniform texture. |
| Moisture Content | Medium density 770 KG/m3 at 12% moisture content. |
| Impact Resistance | 16 Joules |
| Janka | 7.1 kN (seasoned) |
| Unit Shrinkage (KD) | Measurable movement in service – Medium to High Radial: 0.23% of board dimension per 1% moisture content change. Tangential: 0.36% of board dimension per 1% moisture content change |
| Stability | High (quarter sawn) |
| Cutting | Very Good |
| Bending | Satisfactory |
| Glueing | Very Good |
| Lyctus Susceptible | Susceptible |
| Nail holding | Very Good |
| Durability | Above ground – Class 3 Below ground – Class 3 (Refer to IronAsh for clear H3 treatment) |
| Fire | Refer Australian Standard AS1530 Part 3 and Building Code of Australia Ignitability index: 13 Spread of flame index: 5 Smoke development index: 3 Critical Radiant Heat Flux: More than 2.2kW/m2 and less than 4.5kW/m2 Smoke development Rate: Less than 750% -min Average extinction area: less than 250m2/kg Material Group No: 3 (unless coated to meet Group 1 & 2) Bushfire Attack level: BAL 12.5 & 19 |
Calculate the sequestered CO2 equivalent of your project and the time it takes to regrow the timber.
McCormacks Australia
Sustainability
100% of harvested Australian Oak timber is regrown. Up to 50% of the weight of kiln dried Australian Oak is stored carbon (320kg per cubic metre approximately). This is far more helpful for life-cycle assessment and embodied energy considerations than other building materials or soft woods.
Not only that, but 100% of each log we receive is used by utilising off-cuts to make finger jointed products and using the sawdust as a carbon neutral green energy solution to power our kilns.
Australian Oak is ASH’s brand of Tasmanian Oak which is made up of three species – Eucalyptus Regnans, Eucalyptus Delegatensis and Eucalyptus Obliqua (Messmate) and grown in Tasmania. We refer to the species as “oak” as our international customers make this assumption despite the fact it is actually a Eucalypt.
Australian Oak has previously incorporated Victorian ash which is no longer available. Tasmanian oak consists of the same species as Victoria ash, with the addition of messmate.
Tasmanian Oak and Victorian ash come from two near identical eucalypt species, E. Delegantensis and E. Regnans. Although they share many similarities, including species make up, there are some minor differences between Victorian ash and Tasmanian Oak.
Tasmanian Oak can be one of E. Regans, E. Delegatensis & E. Obliqua (Mountain Ash, Alpine Ash and Messmate). The younger growth tends to be lighter in colour while the older trees can be darker across the spectrum. This is what gives Tasmanian Oak hardwood the larger variation in colour.
One hundred percent of Victorian ash and Victorian-grown Tasmanian Oak is no longer available to the market. You can learn more about that here.
Glacial Oak, ASH’s brand of American Oak, is the best alternative to the now unavailable Victorian ash.
Glacial Oak actually exceeds Victorian ash in terms of price stability, reliability, strength and consistency. Glacial Oak is processed in Victoria at our Heyfield mill to Australian standards. Furthermore, unlike many other hardwoods being used as a Vic ash replacement, Glacial Oak exceeds the 650kg/m3 requirement for BAL-12.5 and BAL-19 compliance. Learn more about Glacial Oak.
Australian Oak is a versatile hardwood making it suitable for a range of uses such as construction and interior applications, this includes furniture and joinery, staircase components, DAR & sawn, flooring and lining.
ASH is soon to launch our brand new engineered flooring manufacturing line – the only one of it’s kind in Australia. Australian Oak will be a featured timber in this application and make it the only Australian made timber flooring available in the market. Learn more here.
