AS O20-1948

This Standard applies to the Western Australian timber jarrah, karri and wandoo for the end uses specified in the separate standard. It does not apply to material intended for re-sawing. General provisions are included for limits of accuracy, equivalent defects, seasoning allowance, moisture content, and dimensions. Grade description is given for the timber. Appendices give recommended permissible working stresses for jarrah and karri and methods of differentiating between jarrah and karri.