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