Timber Species Strength & Durability

Strength & Durability Table
Timber SpeciesStrengthDurability Rating
TallowwoodF17 - F34Class 1
BlackbuttF17 - F34Class 1
IronbarkF22 - F42Class 1
Spotted GumF17 - F34Class 1
Blue GumF14 - F24Class 2
Forest Red GumF14 - F22Class 1
Mountain AshF14 - F22Class 3
StringybarkF14 - F22Class 3
JarrahF11 - F22Class 2
KarriF11 - F22Class 2
BrushboxF14 - F24Class 3
Oregon(Douglas Fir)F8 -  F14Class 3/4

 

For Further infomation on Strength & Durability ratings please click here