A to Z index - all terms and descriptions

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Term Short Description
Strength group - dry Seasoned (dry) timbers are assigned one of 8 strength groups: SD1 (strongest) to SD8 (weakest). >Read more
Strength group - green Unseasoned (green) timbers are assigned one of 7 strength groups: S1 (strongest) to S7 (weakest). >Read more
Stress grade The classification of a piece of timber to indicate its characteristic structural properties and stiffness. It is related to timber strength groups. >Read more
Stress grade-non-structural non-structural
Structural 34 structural timbers that are most commercially available in Queensland. >Read more
Structural Load-bearing or supporting in function.
Structural properties The mechanical properties of timber; used in design calculations for construction.
SW Softwood
Synonym An alternative, earlier botanical name for a timber species.
Target Design Life The anticipated satisfactory service life of a timber member (5, 15 or 50 years), if assembled and maintained in accordance with good building practice and the requirements specified . >Read more
Tasmania Tasmania >Read more
TDL Target design life: the anticipated satisfactory service life of a timber member, used correctly. >Read more
Termite resistance Heartwood resistance to subterranean termite attack: R (resistant) or NR (little or no resistance or unknown). >Read more
Timber Design Code Australian Standard AS 1720.1-1997 Timber structures—design methods (Standards Australia 1997a, or its successor). >Read more
Timber groups Timbers groups representing their commercial availability and structural or appearance applications. >Read more
TP1 Technical pamphlet no. 1: Building timbers—Properties and recommendations for their use in Queensland (Smith et al. 1991).
TQ Timber Queensland Limited.
VH Very hard >Read more
Victoria Victoria >Read more
VS Very soft >Read more