ASTM D7032-17
(Specification)Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite and Plastic Lumber Deck Boards, Stair Treads, Guards, and Handrails
Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite and Plastic Lumber Deck Boards, Stair Treads, Guards, and Handrails
ABSTRACT
This specification presents the standard procedures for establishing the performance rating of wood-plastic composite (WPC) deck boards and guardrail systems (guards or handrails). The purpose of this specification is to establish the basis for code recognition of these products or systems in exterior applications where combustible construction is allowed. The general requirements foe these products shall be dictated by their performance in the following test methods: flesural tests; temperature and moisture effects; ultraviolet resistance test; freeze-thaw resistance test; biodeterioration tests; and fire performance tests. Deck boards shall additionally examined by: creep-recovery test; determination of unadjusted allowable load; mechanical fastener holding tests; and slip resistance test. In the same manner, guards and handrails shall additionally be analyzed through concentrated load tests, and one- and two-family dwelling requirements.
SCOPE
1.1 This specification covers procedures to establish a performance rating for wood-plastic composite and plastic lumber for use as exterior deck boards, stair treads, guards, and handrails. The purpose of this specification is to establish a basis for code recognition of these products or systems in exterior applications. The products addressed in this specification are considered combustible.
Note 1: While wood-plastic composites contain wood or other cellulosic materials, the presence of wood or other cellulosic materials in plastic lumber is not required by this specification. Due to non-wood materials in wood-plastic composites and plastic lumber the structural, physical, fire, and other attributes may not be similar to those of wood.
1.1.1 The plastic component of wood-plastic composites and plastic lumber covered by this specification shall consist primarily of thermoplastics.
1.2 Deck boards, stair treads, guards, and handrails covered by this specification are permitted to be of any code compliant shape and thickness (solid or non-solid).
1.3 Wood-plastic composites and plastic lumber are produced in a broad range of fiber and/or resin formulations. It is recognized that the performance requirements in this specification are valid for any material or combination of materials used as deck boards, stair treads, guards, or handrails.
1.4 Details of manufacturing processes are beyond the scope of this specification.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
1.7 Table of Contents:
Section
Scope
1
Referenced Documents
2
Terminology
3
General Requirements
4
Sampling
4.1
Sample Size
4.2
Conditioning
4.3
Flexural Tests
4.4
Temperature and Moisture Effects
4.5
Ultraviolet (UV) Resistance Test
4.6
Freeze-Thaw Resistance Test
4.7
Biodeterioration Tests
4.8
Fire Performance Tests
4.9
Deck Board Performance Requirements
5
General
5.1
Flexural Performance Tests
5.2
Determination of the Unadjusted Allowable Load
5.3
Creep-Recovery Test
5.4
Mechanical Fastener Holding Tests
5.5
Slip Resistance Test
5.6
Guard and Handrail Performance Requirements
6
General
6.1
Guardrail System Test Requirements
6.2
One- and Two-Family Dwelling Requirements
6.2.1.1
Handrail Test Requirements (Concentrated Load)
6.3
Report
7
Independent Inspection
8
Manufacturing Standard
9
Precisio...
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Designation:D7032 −17
Standard Specification for
Establishing Performance Ratings for Wood-Plastic
Composite and Plastic Lumber Deck Boards, Stair Treads,
1
Guards, and Handrails
This standard is issued under the fixed designation D7032; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope conversions to SI units that are provided for information only
and are not considered standard.
1.1 This specification covers procedures to establish a
1.6 This standard does not purport to address all of the
performance rating for wood-plastic composite and plastic
safety concerns, if any, associated with its use. It is the
lumberforuseasexteriordeckboards,stairtreads,guards,and
responsibility of the user of this standard to establish appro-
handrails. The purpose of this specification is to establish a
priate safety and health practices and determine the applica-
basis for code recognition of these products or systems in
bility of regulatory requirements prior to use.
exterior applications. The products addressed in this specifica-
1.7 Table of Contents:
tion are considered combustible.
Section
NOTE 1—While wood-plastic composites contain wood or other cellu-
Scope 1
losic materials, the presence of wood or other cellulosic materials in
Referenced Documents 2
plastic lumber is not required by this specification. Due to non-wood
Terminology 3
materials in wood-plastic composites and plastic lumber the structural,
General Requirements 4
physical, fire, and other attributes may not be similar to those of wood.
Sampling 4.1
Sample Size 4.2
1.1.1 The plastic component of wood-plastic composites
Conditioning 4.3
and plastic lumber covered by this specification shall consist Flexural Tests 4.4
Temperature and Moisture Effects 4.5
primarily of thermoplastics.
Ultraviolet (UV) Resistance Test 4.6
Freeze-Thaw Resistance Test 4.7
1.2 Deck boards, stair treads, guards, and handrails covered
Biodeterioration Tests 4.8
by this specification are permitted to be of any code compliant
Fire Performance Tests 4.9
shape and thickness (solid or non-solid).
Deck Board Performance Requirements 5
General 5.1
1.3 Wood-plastic composites and plastic lumber are pro-
Flexural Performance Tests 5.2
duced in a broad range of fiber and/or resin formulations. It is
Determination of the Unadjusted Allowable 5.3
Load
recognized that the performance requirements in this specifi-
Creep-Recovery Test 5.4
cation are valid for any material or combination of materials
Mechanical Fastener Holding Tests 5.5
used as deck boards, stair treads, guards, or handrails. Slip Resistance Test 5.6
Guard and Handrail Performance 6
1.4 Details of manufacturing processes are beyond the
Requirements
General 6.1
scope of this specification.
Guardrail System Test Requirements 6.2
1.5 The values stated in inch-pound units are to be regarded
One- and Two-Family Dwelling 6.2.1.1
Requirements
as standard. The values given in parentheses are mathematical
Handrail Test Requirements (Concentrated 6.3
Load)
Report 7
Independent Inspection 8
1
This specification is under the jurisdiction ofASTM Committee D07 on Wood
Manufacturing Standard 9
andisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineered
Precision and Bias 10
Wood Products.
Keywords 11
Current edition approved March 1, 2017. Published April 2017. Originally
Two-Span Test Method Annex A1
approved in 2004. Last previous edition approved in 2015 as D7032–15. DOI:
Commentary Appendix X1
10.1520/D7032-17.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7032−17
1.8 This international standard was developed in accor- E84Test Method for Surface Burning Characteristics of
dance with internationally recognized principles on standard- Building Materials
ization established in the Decision on Principles for the E108Test Methods for Fire Tests of Roof Coverings
Development of International Standards, Guides and Recom- E1354Test Method for Heat and Visible Smoke Release
mendations issued by the World Trade Organization Technical Rates for Materials and Products Using an Oxygen Con-
Barriers to Trade (TBT) Committee. sumption Calorimeter
F1679Test Method for Using a Variable Incidence Tribom-
2. Referenced Documents
3
eter (VIT) (Withdrawn 2006)
2
2.1 ASTM Standards:
G154Practice for Operating Fluorescent Ultraviolet (UV)
D9Terminology Relating to Wood and Wood-Based Prod-
Lamp Apparatus for Exposure of Nonmetallic Materials
ucts
2.2 Other References:
D198Test Methods of Static Tests of Lumber in Structu
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7032 − 15 D7032 − 17
Standard Specification for
Establishing Performance Ratings for Wood-Plastic
Composite and Plastic Lumber Deck Boards, Stair Treads,
1
Guards, and Handrails
This standard is issued under the fixed designation D7032; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers the procedures to establish a performance rating for wood-plastic composite (WPC) deck boards.
This specification also defines the procedures to establish a performance rating for WPC guards and plastic lumber for use as
exterior deck boards, stair treads, guards, and handrails. The purpose of this specification is to establish thea basis for code
recognition of these products or systems in exterior applications where combustible construction is allowed (seeapplications. The
products addressed in this specification X1.1).are considered combustible.
NOTE 1—While WPCs maywood-plastic composites contain wood fiber, or other cellulosic materials, the presence of wood fiber in the compositeor
other cellulosic materials in plastic lumber is not required by this standard. Other lignocellulosic materials may be used. For WPC deck boards and
guardrail systems evaluated according to this standard, specification. Due to non-wood materials in wood-plastic composites and plastic lumber the
structural, physical, fire, and fireother attributes may or may not exhibit similaritynot be similar to those of wood due to the presence, type, and quantity
of plastic(s) in the composite. WPCs should not be assumed to behave similarly to wood. For example, to address the influence of plastic in the composite,
special considerations in the standard address sensitivity to temperature, ultraviolet (UV) exposure, and freeze-thaw resistance.wood.
1.1.1 The plastic component of wood-plastic composites and plastic lumber covered by this specification shall consist primarily
of thermoplastics.
1.2 Deck boards, stair treads, guards, and handrails covered by this specification are permitted to be of any code compliant shape
and thickness (solid or non-solid).
1.3 A deck board, and a deck board used as a stair tread, are assigned a span rating indicating its ability to comply with model
code specified functions identified for its specific end use. A guard or handrail is recognized for its ability to meet minimum code
requirements specified in the appropriate model building code.
1.3 Wood-plastic composites and plastic lumber are produced in a broad range of fiber and/or resin formulations. It is recognized
that the performance requirements in this specification are valid for any material or combination of materials used as deck boards,
stair treads, guards, or handrails.
1.4 Details of manufacturing processes are beyond the scope of this specification.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
requirements prior to use.
1.7 Table of Contents:
Section
Scope 1
Referenced Documents 2
Terminology 3
General Requirements 4
Sampling 4.1
Sample Size 4.2
Conditioning 4.3
1
This specification is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.02 on Lumber and Engineered Wood
Products.
Current edition approved Dec. 1, 2015March 1, 2017. Published February 2016April 2017. Originally approved in 2004. Last previous edition approved in 20142015 as
D7032 – 14.D7032 – 15. DOI: 10.1520/D7032-15.10.1520/D7032-17.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7032 − 17
Section
Flexural Tests 4.4
Temperature and Moisture Effects 4.5
Ultraviolet (UV) Resistance Test 4.6
Freeze-Thaw Resistance Test 4.7
Biodeterioration Tests 4.8
Fire Performance Tests 4.9
Deck Board Performance Requirements 5
General 5.1
Flexural Performance Tests 5.2
Determination of the Una
...
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