AKD’s adoption of the latest industry technology combined with strict quality assurance and value adding manufacturing processes, produces a wide range of treated, finger-jointed and laminated products which are fit-for-purpose and meet Australian Standards. Our products are in high demand by both domestic and international customers.
The Great Aussie Outdoors
For use outdoors, Pine species needs to be treated to enhance the durability of the timber in accordance with AS/NZS 1604 series (Preservative-treated wood-based products). Once treated, the product has a durability that makes it fit-for-purpose and with a reasonable service life.
The relevant Hazard Classes and Exposures for AKD’s products are as follows:
||Inside, above ground
||Protected from wetting, no leaching
||Borers and termites
||Framing used south of Tropic of Capricorn
||Outside, above ground
||Periodic moderate wetting
||Moderate decay, borers, and termites
||Pergolas, framing, decking bearers and joists (> 150mm off above ground)
||Severe wetting and leaching
||Severe decay, borers, and termites
||Fence posts, retaining walls less than 0.8m high, landscaping timbers
When planning your project using AKD products, always check with your local authority for approvals and requirements in your area.
AKD’s treated timber products are branded as required by the Australian Standard. There are three (3) pieces of information contained in the treatment brand and are commonly presented as follows:
|Plant Identifier Number
||Preservative Code Number
|Unique three (3) digits identifying the treatment plant where the preservative treatment was carried out.
||A two (2) digit code identifying the preservative treatment via a code which is listed in the treatment standard.
||Letter H (Hazard) followed by numbers one (1) to six (6) (e.g., level/class). Each Hazard Class has specific conditions for use in application as listed in the treatment standard.
Example of AKD Ironwood Edge’s treatment tag is shown below:
For more information on treatment types, hazard classes and a register of current treatment plant numbers, please refer to www.tpaa.com.au
Treatment brands may be applied as ink brands or using plastic tags. Each individual piece of treated timber must be branded. Exemptions are: battens, fence palings, droppers, timber 1500mm2 and less in cross section, timber less than 15mm thick and agricultural post or similar supplied via wholesale in whole pack form to rural end users. In these case, the packaging of the timber will be marked.
Determination of Structural Properties
AKD Structural Pine Framing is graded in accordance with AS/ NZS 1748 Timber – Solid – Stress-graded for structural purposes, is tested in accordance with AS/NZS 4063 Characterization of structural timber, and is verified in accordance with AS/NZS 4490: Timber – Solid – Stress-graded for structural purposes – Verification of properties.
All AKD structural products carry a branded stamp applied to the face of each piece of timber.