AS 2858-1986

Specifies grade requirements for structural grades Nos 1 to 5 for softwoods graded for adequacy of strength. Derived from these grades are stud grades and lintel grades which provide the straighter material required for studs and lintels; and structural appearance grades which have additional limitations on the visual blemishes allowed in structural members exposed to view. Appendices set out the stress grades for each structural grade of the major species covered by the Standard and explain the relationship between strength groups, structural grades and stress grades.

This standard specifies requirements for softwood which is intended for structural purposes and stress-graded by visual means.This standard does not apply to timber species with an average density, at 12 percent moisture content, below 360 kg/m3.NOTES:1. The coverage by this standard in Appendix A of species listed in Table A1 or species mixtures listed in Table A2 does not imply their availability or the availability of any particular grade of any species or species mixture.2. Information on the relationship between strength groups, structural grades and stress grades is given in Appendix E.

Under Revision See DR 98423