AS 2082-2000

1 - AS 2082-2000 TIMBER - HARDWOOD - VISUALLY STRESS-GRADED FOR STRUCTURAL PURPOSES
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 APPLICATION
6 - 1.3 REFERENCED DOCUMENTS
6 - 1.4 TIMBER SPECIES AND STRESS GRADES
6 - 1.4.1 Species and species mixtures other than A17 grade
7 - 1.4.2 A17 grade
7 - 1.5 STRUCTURAL GRADES OF HARDWOOD
8 - 1.6 DEFINITIONS
8 - 1.6.1 Check
8 - 1.6.2 Check, internal
8 - 1.6.3 Exceptionally low density material
8 - 1.6.4 Heart
8 - 1.6.5 Hit and miss
8 - 1.6.6 Included bark
8 - 1.6.7 Knot cluster
8 - 1.6.8 Knot group
8 - 1.6.9 Mixed species
8 - 1.6.10 Parcel
8 - 1.6.11 Primary rot
8 - 1.6.12 Shake
9 - 1.6.13 Sized
9 - 1.6.14 Species mixture
9 - 1.6.15 Stress grading, visual
9 - 1.6.16 Surface
9 - 1.6.17 Termite gallery
10 - 1.7 SIZES AND TOLERANCES
10 - 1.7.1 Dimensions
10 - 1.7.2 Squareness
10 - 1.7.3 Special straightness requirements
10 - 1.8 MOISTURE CONTENT OF SEASONED TIMBER
11 - 1.9 CHARACTERISTICS
11 - 1.9.1 Measurement of characteristics
11 - 1.9.2 Combination of characteristics
11 - 1.9.3 Characteristics occurring entirely within the prescribed limits for want and wane
11 - 1.9.4 Mechanical damage
12 - 1.10 GRADE LIMITATION AND GRADING
12 - 1.10.1 Basis
12 - 1.10.2 Limitations
13 - 1.10.3 Variations in assessment
13 - 1.10.4 Resawing
13 - 1.10.5 Grading check
13 - 1.10. 6 Moisture content of preservative-treated timber
13 - 1.10.7 Docking of multiple lengths
13 - 1.11 SAPWOOD SUSCEPTIBLE TO LYCTID BORERS
14 - 1.12 PRESERVATIVE TREATMENT
14 - 1.13 MARKING
15 - SECTION 2 GRADE DESCRIPTIONS
15 - 2.1 STRUCTURAL GRADE NO. 1
15 - 2.1.1 General
15 - 2.1.2 Permissible characteristics
17 - 2.2 STRUCTURAL GRADE NO. 2
17 - 2.2.1 General
17 - 2.2.2 Permissible characteristics
18 - 2.3 STRUCTURAL GRADE NO. 3
18 - 2.3.1 General
18 - 2.3.2 Permissible characteristics
20 - 2.4 STRUCTURAL GRADE NO. 4
20 - 2.4.1 General
20 - 2.4.2 Permissible characteristics
22 - 2.5 STRUCTURAL APPEARANCE GRADES
23 - SECTION 3 A17 GRADE DESCRIPTION
23 - 3.1 GENERAL
23 - 3.2 SEASONED VICTORIAN ASH-A17
23 - 3.2.1 General
23 - 3.2.2 Permissible characteristics
25 - APPENDIX A - STRESS GRADES, STRENGTH GROUPS AND PROPERTIES OF HARDWOODS
38 - APPENDIX B - STRENGTH GROUPS, STRUCTURAL GRADES AND STRESS GRADES OF TIMBER
40 - APPENDIX C - MEASUREMENT OF CHARACTERISTICS
40 - C1 KNOTS, KNOT HOLES, HOLES OTHER THAN THOSE MADE BY INSECTS AND OCCLUDED BRANCH STUBS
42 - C2 BORER HOLES
42 - C3 SLOPE OF GRAIN
43 - C4 GUM POCKETS, GUM VEINS, RESIN POCKETS, OVERGROWTHS OF INJURY, AND PRIMARY ROT
43 - C5 CHECKS
44 - C6 WANE, WANT AND LYCTID-SUSCEPTIBLE SAPWOOD
44 - C7 BOW AND SPRING
46 - C8 TWIST
47 - C9 CUP
48 - APPENDIX D - SUMMARY TABLE OF GRADE DESCRIPTIONS FOR HARDWOOD

Specifies grade descriptions for structural grades of hardwood, (Nos/1, 2, 3 and 4), graded for adequacy of strength. Derived from these grades are appearance grades which have additional limitations on the visual characteristics allowed in structural members exposed to view. A new stress grade titled A17 grade in included based on an in-grade study. Appendices cover stress grades, strength groups and methods of measurement of characteristics.

This Standard specifies requirements for visually stress-graded sawn hardwood intended for structural purposes.NOTES: 1 The coverage of hardwood species or species mixtures listed in this Standard does not imply their availability, or the availability of any particular grade of any species or species mixture.2 This Standard may be used as a basis for certification of conformity under a product certification program.

First published as part of AS O83-1963.
AS O82 first published 1965.
AS O81 first published 1966.
AS O84 first published 1967.
AS O135 first published 1972.
AS 1483 first published 1973.
AS O83-1963, AS O82-1965, AS O81-1966, AS O84-1967, AS O135-1972 and AS 1483-1973 revised, amalgamated and redesignated as AS 2082-1977.
Second edition 1979.
Third edition 2000.