ASTM D7033-22
(Practice)Standard Practice for Establishing Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels
Standard Practice for Establishing Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels
SIGNIFICANCE AND USE
4.1 The procedures described in this practice are intended to be used to establish design capacity (both strength and stiffness) values based on testing of OSB that, at a minimum, satisfies the relevant performance requirements of PS 2.
4.2 Review and reassessment of values derived from this practice shall be conducted on a periodic basis. If a change is found to be significant, retesting or reevaluation, or both, in accordance with the procedures of this practice shall be considered.
SCOPE
1.1 This practice covers the basis for code recognition of design capacities for OSB structural-use panels. Procedures are provided to establish or re-evaluate design capacities for OSB structural-use panels in flatwise and axial applications. Design capacities for OSB structural-use panels in edgewise applications, such as rim board, are outside the scope of this standard. Procedures for sampling and testing are also provided. Design values stated as capacity per unit dimension are to be regarded as standard. Design capacities developed in accordance with this practice are applicable to panels intended for use in dry in-service conditions.
Note 1: This practice is based on ICC-ES Acceptance Criteria AC-182. Relative to the scope of AC-182, this practice is limited to OSB panels.
Note 2: While this practice makes reference to PS 2, this practice applies similarly to products certified to other standards such as CAN/CSA O325.
Note 3: OSB produced under PS 2 is rated with the “Exposure 1” bond classification. Exposure 1 panels covered by PS 2 are intended for dry use applications where the in-service equilibrium moisture content conditions are expected to be less than 16 %. Exposure 1 panels are intended to resist the effects of moisture due to construction delays, or other conditions of similar severity. Guidelines on use of OSB are available from manufacturers and qualified agencies.
Note 4: PS 2-10 replaced the use of nominal thicknesses with a classification term known as Performance Category, which is defined in PS 2 as “A panel designation related to the panel thickness range that is linked to the nominal panel thickness designations used in the International Building Code (IBC) and International Residential Code (IRC).” Therefore, the PS 2 Performance Category should be considered equivalent to the term “nominal thickness” used within this standard.
1.2 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.
1.3 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.
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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.
Designation: D7033 − 22
Standard Practice for
Establishing Design Capacities for Oriented Strand Board
1
(OSB) Wood-Based Structural-Use Panels
This standard is issued under the fixed designation D7033; 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.
INTRODUCTION
Oriented strand board (OSB) wood-based structural-use panels have been used in a variety of
applications since the 1970s. OSB panels manufactured for use in North America generally comply
with U.S. Department of Commerce Standard PS 2. Panels that comply with PS 2 are subjected to
various kinds of qualification performance testing and ongoing quality assurance testing. While many
panel applications are specified simply on the basis of meeting a given “span rating” as defined in PS
2, some construction and specialty applications may require a complete set of engineering design
values. Based on the structural tests required by PS 2 (flexure), along with data for other properties,
a set of baseline capacities has been available since 1988. As is customary for structural-use panels,
design values will be discussed in this practice in terms of design capacities rather than design
properties, where the difference is that a design property is expressed in units of stress (that is,
pounds-per-square inch (newtons-per-square millimeter) and a design capacity is expressed in the
engineering units of strength (that is, inch-pounds (newton-millimeters) of bending strength capacity,
pounds (newtons) of tensile capacity, and so forth). The term “design values” will be used generically
and can apply to either properties or capacities.
As uses for OSB wood-based structural-use panels extend into new applications, it becomes
increasingly important that manufacturers, qualified agencies, and regulatory bodies reference a set of
common, consensus-based procedures for establishment of design values.The purpose of this practice
is to provide these common procedures.
applies similarly to products certified to other standards such as CAN/
1. Scope
CSA O325.
1.1 This practice covers the basis for code recognition of
NOTE 3—OSB produced under PS 2 is rated with the “Exposure 1”
designcapacitiesforOSBstructural-usepanels.Proceduresare
bond classification. Exposure 1 panels covered by PS 2 are intended for
provided to establish or re-evaluate design capacities for OSB dry use applications where the in-service equilibrium moisture content
conditions are expected to be less than 16 %. Exposure 1 panels are
structural-use panels in flatwise and axial applications. Design
intended to resist the effects of moisture due to construction delays, or
capacities for OSB structural-use panels in edgewise
other conditions of similar severity. Guidelines on use of OSB are
applications, such as rim board, are outside the scope of this
available from manufacturers and qualified agencies.
standard. Procedures for sampling and testing are also pro-
NOTE 4—PS 2-10 replaced the use of nominal thicknesses with a
vided. Design values stated as capacity per unit dimension are
classification term known as Performance Category, which is defined in
to be regarded as standard. Design capacities developed in
PS 2 as “A panel designation related to the panel thickness range that is
linked to the nominal panel thickness designations used in the Interna-
accordance with this practice are applicable to panels intended
tional Building Code (IBC) and International Residential Code (IRC).”
for use in dry in-service conditions.
Therefore, the PS 2 Performance Category should be considered equiva-
NOTE 1—This practice is based on ICC-ES Acceptance Criteria
lent to the term “nominal thickness” used within this standard.
AC-182. Relative to the scope ofAC-182, this practice is limited to OSB
panels.
1.2 The values stated in inch-pound units are to be regarded
NOTE 2—While this practice makes reference to PS 2, this practice
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
This practice is under the jurisdiction of ASTM Committee D07 on Wood and
is the direct responsibility of Subcommittee D07.03 on Panel Products.
1.3 This international standard was developed in accor-
Current edition approved Jan. 15, 2022. Published February 2022. Originally
dance with internationally recognized principles on standard-
approved in 2005. Last previous edition approved
...
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: D7033 − 14 D7033 − 22
Standard Practice for
Establishing Design Capacities for Oriented Strand Board
1
(OSB) Wood-Based Structural-Use Panels
This standard is issued under the fixed designation D7033; 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.
INTRODUCTION
Oriented strand board (OSB) wood-based structural-use panels have been used in a variety of
applications since the 1970s. OSB panels manufactured for use in North America generally comply
with U.S. Department of Commerce Standard PS-2. PS 2. Panels that comply with PS-2 PS 2 are
subjected to various kinds of qualification performance testing and ongoing quality assurance testing.
While many panel applications are specified simply on the basis of meeting a given “span rating” as
defined in PS-2, PS 2, some construction and specialty applications may require a complete set of
engineering design values. Based on the structural tests required by PS-2 PS 2 (flexure), along with
data for other properties, a set of baseline capacities has been available since 1988. As is customary
for structural-use panels, design values will be discussed in this practice in terms of design capacities
rather than design properties, where the difference is that a design property is expressed in units of
stress (that is, pounds-per-square inch) inch (newtons-per-square millimeter) and a design capacity is
expressed in the engineering units of strength (that is, inch-pounds (newton-millimeters) of bending
strength capacity, pounds (newtons) of tensile capacity, and so forth). The term “design values” will
be used generically and can apply to either properties or capacities.
As uses for OSB wood-based structural-use panels extend into new applications, it becomes
increasingly important that manufacturers, qualified agencies, and regulatory bodies reference a set of
common, consensus-based procedures for establishment of design values. The purpose of this practice
is to provide these common procedures.
1. Scope
1.1 This practice covers the basis for code recognition of design capacities for OSB structural-use panels. Procedures are provided
to establish or re-evaluate design capacities for OSB structural-use panels. panels in flatwise and axial applications. Design
capacities for OSB structural-use panels in edgewise applications, such as rim board, are outside the scope of this standard.
Procedures for sampling and testing are also provided. Design values stated as capacity per unit dimension are to be regarded as
standard. Design capacities developed in accordance with this practice are applicable to panels intended for use in dry in-service
conditions.
NOTE 1—This practice is based on ICC-ES Acceptance Criteria AC-182. Relative to the scope of AC-182, this practice is limited to OSB panels.
NOTE 2—While this practice makes reference to PS-2, PS 2, this practice applies similarly to products certified to other standards such as CAN/CSA O325.
NOTE 3—OSB produced under PS-2 PS 2 is rated with the “Exposure 1” bond classification. Exposure 1 panels covered by PS-2 PS 2 are intended for
dry use applications where the in-service equilibrium moisture content conditions are expected to be less than 16 %. Exposure 1 panels are intended to
1
This practice is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.03 on Panel Products.
Current edition approved May 1, 2014Jan. 15, 2022. Published May 2014February 2022. Originally approved in 2005. Last previous edition approved in 20072014 as
D7033 – 07.D7033 – 14. DOI: 10.1520/D7033-14.10.1520/D7033-22.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7033 − 22
resist the effects of moisture due to construction delays, or other conditions of similar severity. Guidelines on use of OSB are available from manufacturers
and qualified agencies.
NOTE 4—PS-2-10 PS 2-10 replaced the use of nominal thicknesses with a classification term known as Performance Category, which is defined in PS-2
PS 2 as “A panel designation related to the panel thickness range that is linked to the nominal panel thickness designations used in the International
Building Code (IBC) and International Residenti
...
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