ASTM D6662 - 17 - Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards

ASTM D6662 - 17

Standard Specification for Polyolefin-Based Plastic Lumber Decking Boards

Status : Current   Published : March 2017



1.1 This specification covers polyolefin-based plastic lumber products for use as exterior residential decking boards.

1.2 Plastic lumber products are currently made predominantly with recycled polyolefin plastics (in particular high-density polyethylene) where the products are more or less non-homogenous in the cross-section. However, this specification is also potentially applicable to similar manufactured plastic products made from other plastic and plastic composite materials that have non-homogenous cross-sections.

1.3 This specification details a procedure to calculate recommended span lengths for spacing of support joists. This procedure was developed using experimental data from a typical unreinforced plastic lumber made predominantly from recycled high-density polyethylene. The methodology to develop span lengths for other types and compositions of plastic lumber is detailed in Appendix X1 of this standard.

1.4 The values are stated in inch-pound units, as these are currently the most common units used by the construction industry. Equivalent SI units are indicated in parentheses. However, the units stated for irradiance exposure in the weatherability section ( 6.3) are in SI units as these are the units commonly used for testing of this type.

1.5  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 limitations prior to use.

Note 1:  There is no similar or equivalent ISO Standard.

Standard NumberASTM D6662 - 17
TitleStandard Specification for Polyolefin-Based Plastic Lumber Decking Boards
Publication Date01 March 2017
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Plastic lumber, Plastic decking, Recycled plastics, Residential decks
File Size369 KB

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