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AS 1720.1-1997

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Timber structures Design methods

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Published date

05-11-1997

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Standards Australia

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1 - AS 1720.1-1997 TIMBER STRUCTURES - DESIGN METHODS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE AND APPLICATION
7 - 1.1.1 Scope
7 - 1.1.2 Application
7 - 1.2 REFERENCED DOCUMENTS
7 - 1.3 NEW MATERIALS AND METHODS
8 - 1.4 TIMBER
8 - 1.4.1 General
8 - 1.4.2 Identification
8 - 1.4.3 Change of grade
8 - 1.4.4 Special provisions
9 - 1.4.5 Treated timber
9 - 1.5 GENERAL DESIGN CONSIDERATIONS
9 - 1.5.1 Loads
9 - 1.5.2 Design methods
10 - 1.5.3 Timber dimensions for engineering calculations
10 - 1.5.4 Other design considerations
12 - 1.6 DESIGN AND SUPERVISION
12 - 1.6.1 Design
12 - 1.6.2 Design information
12 - 1.6.3 Design details
12 - 1.6.4 Supervision
12 - 1.7 WORKMANSHIP AND MAINTENANCE
12 - 1.7.1 General
13 - 1.7.2 Moisture content
13 - 1.7.3 Corrosion
13 - 1.7.4 Shop drawings
13 - 1.7.5 Fabrication and erection
13 - 1.7.6 Maintenance
13 - 1.8 DEFINITIONS
13 - 1.8.1 Administrative definitions
14 - 1.8.2 Technical definitions
17 - 1.9 NOTATION
17 - 1.10 UNITS
18 - SECTION 2 DESIGN PROPERTIES OF STRUCTURAL TIMBER ELEMENTS
18 - 2.1 GENERAL
18 - 2.1.1 General procedure
18 - 2.1.2 Member design capacity
18 - 2.1.3 Member stiffness
18 - 2.2 DESIGN PROPERTIES
18 - 2.2.1 General
19 - 2.2.2 Properties
24 - 2.3 CAPACITY FACTOR
28 - 2.4 MODIFICATION FACTORS
28 - 2.4.1 Duration of load
31 - 2.4.2 Moisture condition
31 - 2.4.3 Temperature
31 - 2.4.4 Length and position of bearing
32 - 2.4.5 Strength sharing between parallel members
34 - 2.4.6 Size factor
35 - 2.4.7 Stability factor
36 - SECTION 3 DESIGN CAPACITY OF BASIC STRUCTURAL MEMBERS
36 - 3.1 GENERAL
36 - 3.2 BEAM DESIGN
36 - 3.2.1 Bending strength
37 - 3.2.2 Effective span
37 - 3.2.3 Slenderness coefficient for lateral buckling under bending
40 - 3.2.4 Stability factor
42 - 3.2.5 Flexural shear strength
42 - 3.2.6 Bearing strength
44 - 3.2.7 Strength of notched beams
44 - 3.2.8 Concentrated loads and partial area loads on grid systems
44 - 3.3 COLUMN DESIGN
44 - 3.3.1 Compressive strength
45 - 3.3.2 Slenderness coefficient for lateral buckling under compression
47 - 3.3.3 Stability factor
48 - 3.3.4 Strength of notched columns
48 - 3.3.5 Spaced columns
48 - 3.4 TENSION MEMBER DESIGN
48 - 3.4.1 Design tensile capacity parallel to grain
48 - 3.4.2 Notched tension members
48 - 3.5 DESIGN CAPACITY IN TENSION PERPENDICULAR TO GRAIN
49 - 3.6 COMBINED BENDING AND AXIAL ACTIONS
49 - 3.6.1 Combined bending and compression
50 - 3.6.2 Combined bending and tension
51 - SECTION 4 DESIGN CAPACITY OF JOINTS IN TIMBER STRUCTURES
51 - 4.1 GENERAL
51 - 4.1.1 Scope of Section
51 - 4.1.2 Joint groups
51 - 4.1.3 Joint types
52 - 4.1.4 Timber grade
52 - 4.1.5 Tendency to split
53 - 4.1.6 Eccentric joints
53 - 4.2 DESIGN OF NAILED JOINTS
53 - 4.2.1 General
53 - 4.2.2 Characteristic capacities for nails
58 - 4.2.3 Design capacity for nailed joints
62 - 4.2.4 Spacing, edge and end distances
62 - 4.2.5 Nail length and timber thickness
62 - 4.2.6 Avoidance of splitting
62 - 4.3 DESIGN OF SCREWED JOINTS
62 - 4.3.1 General
63 - 4.3.2 Characteristic capacities for screws
65 - 4.3.3 Design capacity of screwed joints
67 - 4.3.4 Spacing, edge and end distances
67 - 4.3.5 Screw length and timber thickness
68 - 4.3.6 Preboring
68 - 4.4 DESIGN OF BOLTED JOINTS
68 - 4.4.1 General
68 - 4.4.2 Characteristic capacities for bolts
77 - 4.4.3 Design capacity for bolted connections
79 - 4.4.4 Bolt spacings, edge and end distances
81 - 4.4.5 Washers
81 - 4.4.6 Eccentric joints
82 - 4.5 DESIGN OF COACH SCREWED JOINTS
82 - 4.5.1 General
82 - 4.5.2 Characteristic capacities for coach screws
84 - 4.5.3 Design capacity of coach screwed joints
86 - 4.6 DESIGN OF SPLIT-RING FASTENER JOINTS
86 - 4.6.1 General
86 - 4.6.2 Characteristic capacities for split-ring fasteners
86 - 4.6.3 Design capacity for split-ring fastener joints
88 - 4.6.4 Spacings, edge and end distances for split-ring fasteners
89 - 4.7 DESIGN OF SHEAR-PLATE FASTENER JOINTS
89 - 4.7.1 General
89 - 4.7.2 Characteristic capacities for shear-plate fasteners
89 - 4.7.3 Design capacity for joints with shear plates
89 - 4.7.4 Spacings, edge and end distances for shear-plate fasteners
91 - SECTION 5 PLYWOOD
91 - 5.1 GENERAL
91 - 5.2 DESIGN PROPERTIES
91 - 5.2.1 Characteristic strengths and elastic moduli
91 - 5.2.2 Capacity factor
92 - 5.3 MODIFICATION FACTORS
92 - 5.3.1 General
92 - 5.3.2 Duration of load
92 - 5.3.3 Moisture condition
92 - 5.3.4 Temperature
92 - 5.3.5 Plywood assembly factor
93 - 5.4 LOADING NORMAL TO THE PLANE OF THE PLYWOOD PANEL
93 - 5.4.1 General
93 - 5.4.2 Bending strength
94 - 5.4.3 Shear strength (interlamina shear)
94 - 5.4.4 Bearing strength
95 - 5.4.5 Deflection in bending
95 - 5.5 LOADING IN THE PLANE OF THE PLYWOOD PANEL
95 - 5.5.1 General
95 - 5.5.2 Bending strength
96 - 5.5.3 Shear strength
97 - 5.5.4 Tension strength
97 - 5.5.5 Compression strength
98 - 5.5.6 Combined loads
98 - 5.5.7 Deflection in bending
98 - 5.5.8 Shear deformation
98 - 5.6 JOINTS IN COMPOSITE PLYWOOD TO TIMBER CONSTRUCTION
98 - 5.6.1 Nailed and screwed joints
98 - 5.6.2 Shear strength at glued interfaces
101 - SECTION 6 ROUND TIMBERS
101 - 6.1 GENERAL
101 - 6.2 CHARACTERISTIC STRENGTHS AND ELASTIC MODULI
101 - 6.3 DESIGN
101 - 6.3.1 Bending strength
102 - 6.3.2 Shear strength
102 - 6.3.3 Compressive strength
103 - 6.3.4 Deflections
103 - 6.4 ADDITIONAL MODIFICATION FACTORS
103 - 6.4.1 Factor for immaturity
103 - 6.4.2 Shaving factor
104 - 6.5 DESIGN DETAILS
104 - 6.5.1 Effective cross°section of untreated timber
104 - 6.5.2 Moisture content of timbers in ground contact
104 - 6.5.3 Joints
105 - SECTION 7 GLUED-LAMINATED TIMBER CONSTRUCTION
105 - 7.1 GENERAL
105 - 7.2 DESIGN
105 - 7.3 DESIGN PROPERTIES
105 - 7.3.1 Characteristic strengths and elastic moduli
105 - 7.3.2 Capacity factor
106 - 7.3.3 Non-GL-grade properties
106 - 7.4 MODIFICATION FACTORS
106 - 7.4.1 General
106 - 7.4.2 Duration of load
106 - 7.4.3 Strength sharing between parallel members
106 - 7.4.4 Size factor
106 - 7.4.5 Stability factor
108 - SECTION 8 STRUCTURAL LAMINATED VENEER LUMBER
108 - 8.1 GENERAL
108 - 8.2 DESIGN
108 - 8.3 PROPERTIES
108 - 8.3.1 Characteristic strengths and elastic moduli
108 - 8.3.2 Modulus of rigidity
108 - 8.3.3 Section properties
108 - 8.3.4 Capacity factors
109 - 8.4 MODIFICATION FACTORS
109 - 8.4.1 General
109 - 8.4.2 Duration of load
109 - 8.4.3 Moisture condition
109 - 8.4.4 Temperature
109 - 8.4.5 Length and position of bearing
109 - 8.4.6 Strength sharing between parallel members
109 - 8.4.7 Size factor
110 - 8.4.8 Stability factor
110 - 8.5 JOINT DESIGN
110 - 8.5.1 General
110 - 8.5.2 Joint group
110 - 8.5.3 Characteristic fastener capacities
111 - APPENDIX A - REFERENCED DOCUMENTS
113 - APPENDIX B - GUIDELINES FOR SERVICEABILITY
113 - B1 GENERAL
113 - B2 SERVICEABILITY CONSIDERATIONS
118 - APPENDIX C - JOINTS IN TIMBER STRUCTURES
118 - C1 GENERAL
118 - C2 FASTENERS FOR PLYWOOD
118 - C2.1 General
118 - C2.2 Strength of joints with plywood
119 - C3 DEFORMATION OF JOINTS
119 - C3.1 General
119 - C3.2 Displacement of nailed and screwed joints in solid timber
120 - C3.3 Displacement of solid timber joints fabricated with bolts, split°rings and shear plates
122 - C4 EQUATIONS AND TABLES FOR CHARACTERISTIC CAPACITIES FOR BOLTS
122 - C4.1 Load Qkl
123 - C4.2 Load Qkp
124 - APPENDIX D - ACCEPTANCE TESTING OF TIMBER STRUCTURES AND ELEMENTS
124 - D1 GENERAL
124 - D1.1 Limitations of acceptance testing
124 - D1.2 Circumstances requiring tests
125 - D1.3 Information required
125 - D2 DEFINITIONS
125 - D2.1 Prototype testing
125 - D2.2 Proof testing
125 - D3 METHOD OF TESTING
125 - D3.1 General
125 - D3.2 Test load
125 - D3.3 Eccentricities
125 - D3.4 Load°deflection curve
126 - D4 PROOF TESTING
126 - D4.1 Equivalent test load
126 - D4.2 Loading
127 - D4.3 Acceptance for strength
127 - D4.4 Acceptance of deflection
127 - D5 PROTOTYPE TESTING
127 - D5.1 General
127 - D5.2 Materials
127 - D5.3 Manufacture
127 - D5.4 Equivalent test load
128 - D5.5 Test procedure
129 - D5.6 Acceptance of prototype
129 - D6 REPORT OF TESTS
130 - APPENDIX E - FURTHER DESIGN METHODS FOR MEMBERS
130 - E1 SCOPE
130 - E2 THE MATERIAL CONSTANT
132 - E3 SLENDERNESS COEFFICIENTS FOR COLUMNS
132 - E3.1 End supported columns
133 - E3.2 Continuously restrained columns
134 - E4 SPACED COLUMNS
134 - E4.1 Geometry of spaced columns
134 - E4.2 Special requirements for spaced columns
135 - E4.3 Shear between components
136 - E4.4 Design capacity
137 - E5 BEAM-COLUMN BENT ABOUT BOTH AXES
137 - E6 SLENDERNESS COEFFICIENTS FOR BEAMS
137 - E6.1 General
138 - E6.2 End°supported beams
140 - E6.3 Beams with no intermediate buckling restraints but with torsional restraints at the ends
140 - E6.4 Continuously restrained beams
141 - E7 BUCKLING RESTRAINTS
141 - E7.1 Effectiveness of buckling restraints
142 - E7.2 Notation
142 - E7.3 Columns
143 - E7.4 Beam with lateral restraints
143 - E7.5 Beam with torsional restraints
144 - E8 CONCENTRATED LOADS AND PARTIAL AREA LOADS ON GRID SYSTEMS
144 - E8.1 General
144 - E8.2 Concentrated load
146 - E8.3 Partial area load
146 - E9 NOTCHED BEAMS
147 - E10 NOTCHED COLUMNS
147 - E11 NOTCHED TENSION MEMBERS
147 - E12 SINGLE-TAPERED STRAIGHT BEAMS
147 - E12.1 Geometry
148 - E12.2 Design bending capacity of single-tapered beams
148 - E12.3 Critical section for bending
149 - E12.4 Grain orientation modification factor ktg
149 - E12.5 Taper angle factor ktb
150 - E13 DOUBLE-TAPERED, CURVED AND PITCHED-CAMBERED BEAMS
150 - E13.1 Geometry
151 - E13.2 Double-tapered, curved and pitched-cambered beams
155 - APPENDIX F - NOTATION AND FACTORS
166 - APPENDIX G - DESIGN PROPERTIES OF STRUCTURAL TIMBER
166 - G1 ADDITIONAL INFORMATION
166 - G2 EXAMPLES OF LOAD DURATION FACTORS FOR TYPICAL LOAD COMBINATIONS
167 - APPENDIX H - DESIGN WITH IN-GRADE TESTED MATERIAL
167 - H1 GENERAL
167 - H2 MGP GRADES
167 - H2.1 General
167 - H2.2 Material requirements
167 - H2.3 Design procedures
167 - H2.4 Design properties
169 - H2.5 Capacity factors
169 - H2.6 Modification factors
169 - H2.7 Structural design
170 - H3 A17 STRESS GRADE
170 - H3.1 General
170 - H3.2 Material requirements
170 - H3.3 Design procedures
170 - H3.4 Design properties
171 - H3.5 Capacity factors
172 - H3.6 Modification factors
172 - H3.7 Structural design
173 - APPENDIX I - ASSIGNMENT OF CAPACITY FACTOR (¿) TO DESIGN PROPERTIES
173 - I1 GENERAL
173 - I2 BASIS FOR ASSIGNMENT OF CAPACITY FACTOR
173 - I2.1 General
173 - ¿I2.2 Capacity factor (¿)
173 - I3 STRUCTURAL TIMBER BASED PRODUCTS
173 - I3.1 Australian Standards
173 - I3.2 Manufacturers’ specifications
175 - APPENDIX J - BUCKLING STRENGTH OF PLYWOOD DIAPHRAGMS
175 - J1 SCOPE
175 - J2 BUCKLING STRENGTH FOR DIAPHRAGMS LOADED IN°PLANE
175 - J2.1 Application
175 - J2.2 Diaphragms with lateral edges supported and subjected to uniformly loaded edge forces
178 - J2.3 Diaphragms with lateral edges free and subjected to uniformly loaded edge forces
178 - J2.4 Diaphragms subjected to concentrated edge forces
180 - J2.5 Stiffeners for beam webs
181 - J3 METHOD OF CALCULATION OF SECTION PROPERTIES
181 - J3.1 General
181 - J3.2 Definitions for use in calculation of section properties
181 - J3.3 Calculation method
183 - J4 SECTION PROPERTIES FOR STANDARD CONSTRUCTIONS

Sets out the limit state design methods to be used in the design or appraisal of structural elements comprised of timber or wood products and of structures comprised substantially of timber. Design data is provided for sawn timber, glued laminated timber, round timber, plywood, laminated veneer lumber, monitored in-grade tested material and various types of fastenings. Test methods are included for components or assemblies of unconventional design which are not readily amenable to detailed analysis. Guidelines on serviceability considerations and information on the assignment of capacity factors to timber products are also provided.

This Standard sets out limit state design methods for the structural use of timber which are based on the principles of structural mechanics and on data established by research. The Standard is intended for use in the design or appraisal of structural elements or systems comprised of timber or wood products and of structures comprised substantially of timber. To this end, the Standard provides design data for sawn timber, laminated timber, timber in pole form, plywood, laminated veneer lumber and various types of fastenings. In addition, it provides methods of test for components or assemblies of unconventional design which may not be readily amenable to detailed analysis.For ease of use, the simpler design situations are covered in the main body of the text. Related appendices, which form an integral part of the Standard, give acceptable procedures for detailed design situations.ApplicationThis Standard will be referenced in the Building Code of Australia by way of BCA Amendment 3 to be published by 1 July 1998, thereby superseding the previous edition, AS 1720.1-1988, which will be withdrawn 12 months from the date of publication of this edition.

Committee	TM-001
DocumentType	Standard
ISBN	0 7337 1493 5
Pages	177
ProductNote	See also AS 1720.1-1988
PublisherName	Standards Australia
Status	AvailableSuperseded
SupersededBy	AS 1720.1-2010
Supersedes	AS 1720.1-1988 AMDT 1 AS 1720.1-1988 DR 94276
UnderRevision	DR 08053

Amendment 2 to AS 1720.1-1997 see DR 99323 CP First published as part of AS CA65-1972.Revised and redesignated AS 1720-1975.Revised and redesignated in part as AS 1720.1-1988.Second edition 1997. First published as part of AS CA65-1972. Revised and redesignated AS 1720-1975. Revised and redesignated in part as AS 1720.1-1988. Second edition 1997.

AS 1111-1980	ISO metric hexagon commercial bolts and screws
AS/NZS 2098.9:1995	Methods of test for veneer and plywood Procedures for in-grade testing of structural plywood
AS 2858-1986	Timber - Softwood - Visually stress-graded for structural purposes
AS 2209-1994	Timber - Poles for overhead lines
AS 2082-1979	Visually stress-graded hardwood for structural purposes
AS 1720.2-2006	Timber structures Timber properties
AS/NZS 1110:1995	ISO metric precision hexagon bolts and screws
AS 1170.2-1989	Minimum design loads on structures (known as the SAA Loading Code) Wind loads
AS 4100-1998	Steel structures (Reconfirmed 2016)
AS/NZS 1170.2:2002	Structural design actions Wind actions
AS/NZS 2269:2004	Plywood - Structural
AS 1649-1998	Timber - Methods of test for mechanical fasteners and connectors - Basic working loads and characteristic strengths
AS 2670-1983	Vibration and shock - Guide to the evaluation of human exposure to whole body vibration
AS 3519-1993	Timber - Machine proof-grading
AS 1393-1973	Coach screws (metric series) (with ISO hexagon heads)
AS/NZS 1393:1996	Coach screws - Metric series with ISO hexagon heads (Reconfirmed 2016)
AS 1720.2-1990	Timber structures Timber properties
AS/NZS 4490:1997	Timber - Stress-graded - Procedures for monitoring structural properties
AS 1720.4-1990	Timber structures Fire-resistance of structural timber members
AS/NZS 2269:1994	Plywood - Structural
AS 1328-1987	Glued-laminated structural timber
AS/NZS 4491:1997	Timber - Glossary of terms in timber-related Standards (Reconfirmed 2016)
AS 2334-1980	Steel nails - Metric series (Reconfirmed 2015)
AS/NZS 1328.1:1998	Glued laminated structural timber Performance requirements and minimum production requirements
AS 1170.1-1981	Minimum design loads on structures (known as the SAA Loading Code) Dead and live loads
AS 1604-1997	Timber - Preservative-treated - Sawn and round
AS/NZS 2312:2002	Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings
AS/NZS 1748:1997	Timber - Stress-graded - Product requirements for mechanically stress-graded timber
AS 3519-2005	Timber - Machine proof grading
AS 4100-1990	Steel structures
AS/NZS 1748:2006	Timber - Mechanically stress-graded for structural purposes
AS 1649-2001	Timber - Methods of test for mechanical fasteners and connectors - Basic working loads and characteristic strengths
AS 3660-1993	Protection of buildings from subterranean termites - Prevention, detection and treatment of infestation
AS 2758.1-1998	Aggregates and rock for engineering purposes - Concrete aggregates
AS/NZS 4357:1995	Structural Laminated Veneer Lumber
AS/NZS 2312:1994	Guide to the protection of iron and steel against exterior atmospheric corrosion
AS 2878-1986	Timber - Classification into strength groups
AS/NZS 4063:1992	Timber - Stress-graded - In-grade strength and stiffness evaluation
AS 2082-2007	Timber - Hardwood - Visually stress-graded for structural purposes (Reconfirmed 2017)
AS 1720.4-2006	Timber structures Fire resistance for structural adequacy of timber members
AS 3566-1988	Screws - Self-drilling - For the building and construction industries
AS/NZS 1170.1:2002	Structural design actions Permanent, imposed and other actions

AS 1684.3-2010	Residential timber-framed construction Cyclonic areas
AS 1684.4-2010	Residential timber-framed construction Simplified - Non-Cyclonic Areas
AS/NZS 4676:2000	Structural design requirements for utility services poles
AS 1720.4-2006	Timber structures Fire resistance for structural adequacy of timber members
AS/NZS 1576.1:2010	Scaffolding General requirements
AS 1684.2-2010	Residential timber-framed construction Non-cyclonic areas
AS 3818.8-2005	Timber - Heavy structural products - Visually graded Stumps and sole plates
AS 2159-1995	Piling - Design and installation
AS 1735.1-2001	Lifts, escalators and moving walks - General requirements
AS 3818.6-2003	Timber - Heavy structural products - Visually graded Decking for wharves and bridges
AS/NZS 1576.1:1995	Scaffolding General requirements
AS 1085.18-2003	Railway track material Screw spikes and threaded inserts
AS/NZS 4994.1(INT):2004	Temporary roof edge protection for housing and residential buildings General requirements
AS 3533.4.3-2007	Amusement rides and devices Specific requirements - Roller coasters
AS/NZS 2269.2:2007	Plywood - Structural Determination of structural properties - Evaluation methods
AS 3818.4-2003	Timber - Heavy structural products - Visually graded Cross-arms for overhead lines
AS/NZS 4357.3:2006	Structural laminated veneer lumber (LVL) Determination of structural properties - Evaluation methods
AS 1684.2-2006	Residential timber-framed construction Non-cyclonic areas (SEE IMPORTANT NOTE)
AS 3818.2-2004	Timber - Heavy structural products - Visually graded Railway track timbers
AS 2159-2009	Piling - Design and installation
AS 3818.7-2006	Timber - Heavy structural products - Visually graded Large cross-section sawn hardwood engineering timbers
AS 1418.1-2002	Cranes, hoists and winches General requirements
AS 2050-2002	Installation of roof tiles
AS 4132.3-1993	Boat and ship design and construction - Fibre-reinforced plastics construction
AS 3818.1-2009	Timber - Heavy structural products - Visually graded General requirements
AS 2858-2004	Timber - Softwood - Visually graded for structural purposes
AS 1657-1992	Fixed platforms, walkways, stairways and ladders - Design, construction and installation
AS 4678-2002	Earth-retaining structures
AS 2082-2007	Timber - Hardwood - Visually stress-graded for structural purposes (Reconfirmed 2017)
AS/NZS 4357.0:2005	Structural laminated veneer lumber Specifications (Reconfirmed 2016)
AS/NZS 4357.2:2006	Structural laminated veneer lumber (LVL) Determination of structural properties - Test methods
AS 1649-2001	Timber - Methods of test for mechanical fasteners and connectors - Basic working loads and characteristic strengths
AS/NZS 4063.2:2010	Characterization of structural timber Determination of characteristic values
AS 2858-2001	Timber - Softwood - Visually graded for structural purposes
AS 6669-2007	Plywood - Formwork
AS/NZS 2589:2007	Gypsum linings - Application and finishing
AS 1576.4-1991	Scaffolding - Suspended scaffolding
AS 3818.4-2000	Timber - Heavy structural products - Visually graded Cross-arms for overhead lines
AS 3818.3-2001	Timber - Heavy structural products - Visually graded Piles
AS 2316.1-2009	Artificial climbing structures and challenge courses Fixed and mobile artificial climbing and abseiling walls
AS/NZS 2269:2004	Plywood - Structural
AS 3785.6-1992	Underground mining - Shaft equipment - Guides and rubbing ropes for conveyances
AS 3519-2005	Timber - Machine proof grading
AS/NZS 1748:2006	Timber - Mechanically stress-graded for structural purposes
AS 1720.2-2006	Timber structures Timber properties
AS 3785.5-1998	Underground mining - Shaft equipment Headframes
AS 1562.3-2006	Design and installation of sheet roof and wall cladding Plastic (Reconfirmed 2018)
AS 1170.4-2007	Structural design actions Earthquake actions in Australia (Reconfirmed 2018)
AS 1735.1-2003	Lifts, escalators and moving walks General requirements
AS 4440-2004	Installation of nailplated timber roof trusses
WS14-2012	Timber in Internal Design
AS/NZS 2785:2000	Suspended ceilings - Design and installation
AS 3958.2-1992	Ceramic tiles Guide to the selection of a ceramic tiling system
AS 1684.3-2006	Residential timber-framed construction Cyclonic areas
AS/NZS 4063:1992	Timber - Stress-graded - In-grade strength and stiffness evaluation
AS 1684.4-2006	Residential timber-framed construction - Simplified - Non-cyclonic areas (SEE IMPORTANT NOTE)
AS/NZS 4994.1:2009	Temporary edge protection General requirements
AS 2082-2000	Timber - Hardwood - Visually stress-graded for structural purposes
AS 3818.1-2003	Timber - Heavy structural products - Visually graded General requirements
AS/NZS 2269.0:2008	Plywood - Structural Specifications

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AS 1720.1-1997

AvailableSuperseded

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