Silvertop Ash

mt-martha-house-5 silvertop-1a silvertop-ash-timber-cladding



Silvertop Ash has a narrow sapwood, which is not clearly distinguishable from the heartwood. Its heartwood is brown and sometimes pinkish in colour and often features the grain interlocked with growth rings. With a medium texture, silvertop ash is also recognisable by the common occurrence of gum veins, the markings of pinhole borers and pencil streaks.

Botanical Name

Eucalyptus sieberi

Origin of Timber



Bushfire Attack Level 12.5, 19 & 29

All AS3959 Required Applications




  • Flooring
  • Furniture
  • Joinery
  • Decking & Cladding

Technical Information

 Tangential Shrinkage 10.6%
 Radial Shrinkage  >5%
 Unit Movement  0.36%
 Density per Standard  850 kg/m3
 Modulus of Rupture  136 MPa
 Modulus of Elasticity  17 GPa
 Maximum Crushing Strength  70 MPa
 Impact  20 joules (J)
 Toughness  Medium 15-25 Nm
 Hardness  9.5 kN


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