ASTM D7032-21
Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite and Plastic Lumber Deck Boards, Stair Treads, Guards, and Handrails

Standard No.

ASTM D7032-21

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D7032-21

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. 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. NOTE 2—The products addressed in this standard are considered combustible. No fire response characteristic is required in this specification except for flame spread index as determined in accordance with Test Method E84. 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, health, and environmental practices and determine the applicability of regulatory limitations 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 Oneand Two-Family Dwelling Requirements 6.2.1.1 Handrail Test Requirements (Concentrated Load) 6.3 Report 7 Independent Inspection 8 Manufacturing Standard 9 Precision and Bias 10 Keywords 11 Two-Span Test Method Annex A1 Commentary Appendix X1 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 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 Nov. 1, 2021. Published December 2021. Originally approved in 2004. Last previous edition approved in 2017 as D7032 – 17. DOI: 10.1520/D7032-21. Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 1 8QLYHUVLW\RI7RURQWR 8QLYHUVLW\RI7RURQWR SXUVXDQWWR/LFHQVH$JUHHPHQW1RIXUWKHUUHSURGXFWLRQVDXWKRUL]HG 'RZQORDGHGSULQWHGE\ &RS\ULJKWE\$670,QW O DOOULJKWVUHVHUYHG 6DW'HF*07 2. Referenced Documents

ASTM D7032-21 Referenced Document

• ASTM D1037 Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
• ASTM D1413 Standard Test Method for Wood Preservatives by Laboratory Soil-Block Cultures
• ASTM D1554 Standard Terminology Relating to Wood-Base Fiber and Particle Panel Materials*， 2023-08-04 Update
• ASTM D1761 Standard Test Methods for Mechanical Fasteners in Wood
• ASTM D1929 Standard Test Method for Determining Ignition Temperature of Plastics
• ASTM D1972 Standard Practice for Generic Marking of Plastic Products
• ASTM D2017 Standard Test Method for Accelerated Laboratory Test of Natural Decay Resistance of Woods
• ASTM D2047 Standard Test Method for Static Coefficient of Friction of Polish-Coated Floor Surfaces as Measured by the James Machine
• ASTM D2394 Standard Methods for Simulated Service Testing of Wood and Wood-Base Finish Flooring
• ASTM D2565 Standard Practice for Xenon-Arc Exposure of Plastics Intended for Outdoor Applications
• ASTM D2915 Standard Practice for Evaluating Allowable Properties for Grades of Structural Lumber
• ASTM D3345 Standard Test Method for Laboratory Evaluation of Wood and Other Cellulosic Materials for Resistance to Termites
• ASTM D4000 Standard Classification System for Specifying Plastic Materials*， 2023-03-15 Update
• ASTM D4092 Standard Terminology: Plastics: Dynamic Mechanical Properties
• ASTM D4761 Standard Test Methods for Mechanical Properties of Lumber and Wood-Based Structural Materials
• ASTM D5764 Standard Test Method for Evaluating Dowel-Bearing Strength of Wood and Wood-Based Products
• ASTM D6109 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastic Lumber
• ASTM D6662 Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards*， 2022-04-01 Update
• ASTM D790 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials*， 2024-04-21 Update
• ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
• ASTM D9 Standard Terminology Relating to Wood
• ASTM E1354 Standard Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen Consumption Calorimeter
• ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials
• ASTM F1679 Standard Test Method for Using a Variable Incidence Tribometer (VIT)
• ASTM G154 Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Materials*， 2023-01-01 Update

ASTM D7032-21 history

• 2021 ASTM D7032-21 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite and Plastic Lumber Deck Boards, Stair Treads, Guards, and Handrails
• 2017 ASTM D7032-17 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite and Plastic Lumber Deck Boards, Stair Treads, Guards, and Handrails
• 2015 ASTM D7032-15 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite and Plastic Lumber Deck Boards, Stair Treads, Guards, and Handrails
• 2014 ASTM D7032-14 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2010 ASTM D7032-10a Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2010 ASTM D7032-10 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2008 ASTM D7032-08 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2007 ASTM D7032-07 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2006 ASTM D7032-06a Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2006 ASTM D7032-06 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2005 ASTM D7032-05a Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2005 ASTM D7032-05 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
• 2004 ASTM D7032-04 Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)