Species

All timber species sawn by Radial Timber for external applications and requiring natural durability are selected from regrowth Eucalyptus species ranging in durability from Class 1 to 2 (NOTE: this is the same durability class as Western Red Cedar and Jarrah). Wherever possible, Radial Timber sources plantation grown species such as Mountain Ash for internal applications such as flooring and wall/ceiling linings.

SpeciesE. MuelleranaE. SieberiE. Botryoides
Common NameYellow StringybarkSilvertop AshSth. Mahogany
Density – Dry870kg/m3820kg/m3920kg/m3
Density – Green1100kg/m31030kg/m31180kg/m3
Strength GroupS3 SD3S4 SD3S2 SD3
% Shrinkage-Radial4.56.05.0
% Shrinkage-Tangential7.510.110.0
MOE – Dry171718
MPA – Green141015
MOR – Dry132136130
MPA – Green906984
Hardness – Dry8.59.59.0
Hardness – Green6.37.27.0
Durability Class (above ground)222
Durability Class (in ground)333
Lyctus BoreNon-SusceptibleNon-SusceptibleNon-Subceptible
Av.External Life (above ground)15 – 40 years15 – 40 years15 – 40 years

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Radial Timber Calculator
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