ASTM D7672-11
(Specification)Standard Specification for Evaluating Structural Capacities of Rim Board Products and Assemblies
Standard Specification for Evaluating Structural Capacities of Rim Board Products and Assemblies
SCOPE
1.1 This specification provides procedures for testing and establishing the structural capacities of proprietary rim board products and assemblies for use in light-frame wood construction using I-joist or structural composite lumber joist framing. It does not apply to rim board products manufactured to a commodity rim board standard.
1.2 This specification was developed in light of currently manufactured panel, structural composite lumber, and pre-fabricated I-joist rim board products as defined in 3.2. Materials that do not conform to the definitions of 3.2 are beyond the scope of this specification.
1.3 Fire safety, sound transmission, building envelope performance, and cutting/notching attributes of rim board products and assemblies are all items that may need to be considered in an end-use application. These items fall outside the scope of this specification.
1.4 This specification primarily considers end use in dry service conditions, such as most protected framing members, where the equilibrium moisture content for solid-sawn lumber is less than 16 %.
1.5 This specification provides methods to establish “allowable stress” design resistances for use with the National Design Specification for Wood Construction (NDS). Derivation of design resistances from the test data in accordance with “load and resistance factor design” or “limit states design” are beyond the scope of this specification.
1.6 Quality control requirements are outside the scope of this Specification.
1.7 The performance of a rim board product will be affected by the constituent wood species, geometry, adhesive, and production parameters. Therefore, rim board products produced by each individual manufacturer shall be evaluated to determine their product properties, regardless of the similarity in characteristics to products produced by other manufacturers.
1.8 Where a manufacturer produces product in more than one facility, each production facility shall be evaluated independently. For additional production facilities, any revisions to the full qualification program in accordance with this specification shall be approved by an accredited, independent qualifying agency.
1.9 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.
1.10 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.
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Designation: D7672 – 11
Standard Specification for
Evaluating Structural Capacities of Rim Board Products and
Assemblies
This standard is issued under the fixed designation D7672; 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
Rimboardassembliesareanengineeredcomponentwithinlight-framewoodplatformconstruction.
Rim board assemblies may serve in multiple structural capacities, including: providing floor closure
and diaphragm attachment, transferring vertical and in-plane lateral loads, restricting out-of-plane
rotation and lateral translation at the ends of the floor joists, providing deck ledger attachment, and
spanning wall openings as a header material. Rim board products, which serve a principal role as a
component integrated within a rim board assembly, can vary by wood species, size, shape, and type.
Rim board products and assemblies require evaluation of their mechanical properties, physical
properties, and their response to end use environments. Procedures established in this Specification
provideameanstotestrimboardproductsandassemblies,tojudgetheiracceptability,andtoestablish
allowable design capacities.
1. Scope 1.5 This specification provides methods to establish “allow-
ablestress”designresistancesforusewiththeNationalDesign
1.1 This specification provides procedures for testing and
Specification for Wood Construction (NDS). Derivation of
establishing the structural capacities of proprietary rim board
design resistances from the test data in accordance with “load
products and assemblies for use in light-frame wood construc-
and resistance factor design” or “limit states design” are
tion using I-joist or structural composite lumber joist framing.
beyond the scope of this specification.
It does not apply to rim board products manufactured to a
1.6 Quality control requirements are outside the scope of
commodity rim board standard.
this Specification.
1.2 This specification was developed in light of currently
1.7 The performance of a rim board product will be affected
manufactured panel, structural composite lumber, and pre-
by the constituent wood species, geometry, adhesive, and
fabricated I-joist rim board products as defined in 3.2. Mate-
production parameters. Therefore, rim board products pro-
rials that do not conform to the definitions of 3.2 are beyond
duced by each individual manufacturer shall be evaluated to
the scope of this specification.
determine their product properties, regardless of the similarity
1.3 Fire safety, sound transmission, building envelope per-
in characteristics to products produced by other manufacturers.
formance, and cutting/notching attributes of rim board prod-
1.8 Where a manufacturer produces product in more than
ucts and assemblies are all items that may need to be
one facility, each production facility shall be evaluated inde-
considered in an end-use application. These items fall outside
pendently. For additional production facilities, any revisions to
the scope of this specification.
the full qualification program in accordance with this specifi-
1.4 This specification primarily considers end use in dry
cation shall be approved by an accredited, independent quali-
service conditions, such as most protected framing members,
fying agency.
where the equilibrium moisture content for solid-sawn lumber
1.9 The values stated in inch-pound units are to be regarded
is less than 16 %.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
This specification is under the jurisdiction ofASTM Committee D07 on Wood
and are not considered standard.
and is the direct responsibility of Subcommittee D07.05 on Wood Assemblies.
Current edition approved May 1, 2011. Published June 2011. DOI: 10.1520/
D7672–11.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D7672 – 11
1.10 This standard does not purport to address all of the D7033 Practice for Establishing Design Capacities for Ori-
safety concerns, if any, associated with its use. It is the ented Strand Board (OSB) Wood-Based Structural-Use
responsibility of the user of this standard to establish appro- Panels
priate safety and health practices and determine the applica- F1667 Specification for Driven Fasteners: Nails, Spikes,
bility of regulatory limitations prior to use. and Staples
2.2 Other Standards:
2. Referenced Documents
NDS ANSI/AF&PA National Design Specification for
2.1 ASTM Standards: Wood Construction
ANSI/ASME Standard B18.2.1
D9 Terminology Relating to Wood and Wood-Based Prod-
ucts ANSI/APA PRR-410 Standard for Performance-Rated En-
gineered Wood Rim Boards
D198 Test Methods of Static Tests of Lumber in Structural
Sizes ICC-ES AC124 ICC Evaluation Service Acceptance Crite-
ria for Rim Board Products
D1037 Test Methods for Evaluating Properties of Wood-
Base Fiber and Particle Panel Materials PS-1 U.S. Product Standard, Structural Plywood
PS-2 U.S. Product Standard, Performance Standard for
D2395 Test Methods for Specific Gravity of Wood and
Wood-Based Structural Use Panels
Wood-Based Materials
D2915 Practice for Sampling and Data-Analysis for Struc-
3. Terminology
tural Wood and Wood-Based Products
D4442 Test Methods for Direct Moisture Content Measure-
3.1 Definitions—Standard definitions of wood terms are
ment of Wood and Wood-Base Materials
given in Terminology D9.
D4761 Test Methods for Mechanical Properties of Lumber
3.2 Definitions of Terms Specific to This Standard:
and Wood-Base Structural Material
3.2.1 Rim Board Assembly—An assemblage of framing,
D5055 Specification for Establishing and Monitoring Struc-
sheathing, and fasteners at the boundary of a platform floor or
tural Capacities of Prefabricated Wood I-Joists
roof framed with joists. DISCUSSION: The rim board assem-
D5456 SpecificationforEvaluationofStructuralComposite
bly, as illustrated in Fig. 1 for a floor, consists of the sheathing,
Lumber Products
rim board, wall plate framing, the ends of any perpendicular
(Fig. 1A) or parallel (Fig. 1B) joists, and the variety of
fasteners that hold these components together.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.2 Rim Board—The component of a rim board assembly
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
that provides in-plane lateral and vertical load path continuity,
Standards volume information, refer to the standard’s Document Summary page on
stability, and closure for the full depth of the joist space.
the ASTM website.
FIG. 1 Typical Rim Board Assembly Sections for Floor Framing
D7672 – 11
DISCUSSION: As depicted in Fig. 1 and Fig. 2, the longitu- of exterior wall siding to the rim board; and (5) attachment of
dinal axis runs parallel to the wall or foundation framing that any required hardware to the face. While it is permissible to
supports the platform edge. The product depth extends verti- develop most of these capacities based upon the material
cally between the floor platform sheathing above and the wall properties established in 4.4 and the relevant design provisions
or foundation plate beneath the platform. The rim board of the NDS, the in-plane lateral load capacity of the rim
product provides vertical load transfer and lateral load transfer assembly shall be empirically established as outlined in this
through the diaphragm boundary. It works with the sheathing Specification. If the rim board assembly with a rectangular
and plate materials to restrain the rotation and lateral transla- wood-based rim board is to be additionally qualified to support
tion of the perpendicular floor joists at their end bearing an exterior deck ledger, then deck ledger fastener attachments
locations. Except when used in a qualified header or cantilever must also be developed. The procedure outlined in this
application, the rim board bears upon the wall or foundation Specification can be used for the qualification of deck ledger
plate beneath the platform for the full length and thickness of attachments. Alternative deck ledger attachment qualification
the product. procedures may be used in lieu of those contained within this
3.2.3 Commodity Rim Board—Rim board products manu- specification provided that they consider all potential failure
factured to a standard with commodity product capacities that modes, including deck ledger splitting perpendicular-to-grain.
are qualified and used by multiple manufacturers. DISCUS-
4.4 Product Specific Requirements:
SION: Commodity rim board products are not addressed by
4.4.1 I-joist Rim Board Products—I-joist rim board prod-
this standard.
ucts must be qualified as an I-joist framing material in
accordance with Specification D5055, have a minimum flange
NOTE 1—ANSI/APAPRR-410isanexampleofacommodityrimboard
standard. width of 1.5 in. (38 mm), and a minimum manufactured length
of 8 ft. (2.4 m). I-joists with sawn lumber flanges shall have
3.2.4 Rectangular Wood-Based Rim Board—A structural
established fastener capacities into the face and edge that
compositelumber,orientedstrandboard,orplywoodrimboard
comply with the provisions of the NDS. I-joists with structural
with a rectangular cross section.
composite lumber flanges shall have fastener capacities estab-
3.2.5 I-joist Rim Board—Apre-fabricated I-joist rim board.
lished in accordance with Specification D5456. Deck ledger
attachments to I-joist rim board products fall outside the scope
4. Materials
of this specification.
4.1 General—As a condition to being qualified in accor-
4.4.2 Rectangular Wood-Based Rim Boards—Rectangular
dancewiththisSpecification,arimboardproductshallcomply
wood-based rim board products shall have a minimum thick-
with the requirements and application limitations of Section 4.
nessof1.0in.(25mm)andaminimummanufacturedlengthof
4.2 Header Applications—Only rim board qualified for
8 ft. (2.4 m). Additionally, they shall satisfy the following.
in-plane bending shall be permitted to span a wall opening,
4.4.2.1 Structural Composite Lumber—Structural compos-
foundation opening, or extend beyond a lower wall to support
ite lumber rim board products shall be made from a material
a cantilevered framing offset at the rim board elevation in the
qualified in accordance with Specification D5456. The axial
structure. Rim board used as a header or cantilever shall be
tension and compression capacities need not be qualified for
designed for the application using the qualified design proper-
rim board applications unless the product will be permitted to
ties established in accordance with the reference standards of
be used as a drag strut or diaphragm chord. SCL rim board
4.4. Otherwise, the rim board shall be continuously supported
products shall have fastener capacities into the edge and face
for the full length and thickness of the product.
established in accordance with Specification D5456. Where a
4.3 Fastener Capacities—Rectangular wood-based rim
Specification D5456 test method requires minimum specimen
boards and the flanges of I-joist rim boards shall have
dimensions that exceed the product thickness, testing the rim
established capacities for fasteners inserted parallel with the X
board with its actual thickness shall be permitted.
and Y orientations of Fig. 2. Minimum allowed spacings shall
be set to prevent unusual splitting of the rim board. Fastener
4.4.2.2 Proprietary Plywood and Oriented Strand Board—
capacities are required to be developed that address (1) Proprietary plywood and oriented strand board rim board
connection of the diaphragm to the top edge of the rim board;
products shall be initially qualified in accordance with PS-1 or
(2)attachmentoftherimboardtowallplatesaboveandbelow; PS-2. In addition, when used as a structural header, the
(3)attachmentoftherimboardtothejoistends;(4)attachment
edgewise bending performance of proprietary plywood and
oriented strand board rim board products shall be evaluated in
accordance with the Specification D5456 requirements for
laminated veneer lumber or oriented strand lumber, respec-
tively. This evaluation shall include, but is not limited to,
relevant considerations applicable to edgewise bending, such
as edgewise flexure, shear, and bearing design load establish-
ment, duration of load, volume effects, moisture content, etc.
The axial tension and compression capacities need not be
qualifiedinaccordancewithSpecificationD5456forrimboard
applications unless the product will be used as a drag strut or
FIG. 2 Orientation for Rim Board diaphragm chord. Where a Specification D5456 specified test
D7672 – 11
method requires minimum specimen dimensions that exceed 5.4 Witnessing—Qualification tests shall be conducted or
the product thickness, testing the rim board with its actual witnessed by a qualified agency in accordance with Section 8.
All test results are to be certified by an accredited, independent
thicknessshallbepermitted.ProprietaryplywoodandOSBrim
qualifying agency.
board products shall have fastener capacities into the edge and
5.5 Moisture Content and Density—Moisture content shall
face that either comply with published values in the NDS or
bemeasuredandreportedforeachrimboardproductspecimen
have been developed in accordance with Practice D7033.
tested in the qualification program in accordance with Test
Methods D4442. The moisture content of other assembly
5. Qualification
components does not need to be determined. As an alternative
5.1 General—This section describes procedures, both em-
to testing a full cross-section, only the moisture content of the
pirical and analytical, for initial qualification of the structural
flange materials needs to be tested for I-joist rim board
capacities of rim board products and assemblies. Qualification
products. Specific gravity shall be measured and reported for
is required for typical details of rim board application since
rectangular rim board products in accordance with Test Meth-
they are used commonly and influence structural capacities.
ods D2395.As an alternative, product density may be reported
based upon the specimen weight divided by the specimen
5.2 Qualification Process—Rim board products shall be
volume at the tested moisture content.
tested in accordance with Section 6 and evaluated in accor-
5.6 Test Equipment Tolerances—Tests in accordance with
dance with Section 7. The allowable design values and
this specification are to be conducted using a machine or
durability
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
´1
Designation:D7672–11 Designation: D7672 – 11a
Standard Specification for
Evaluating Structural Capacities of Rim Board Products and
Assemblies
This standard is issued under the fixed designation D7672; 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.
´ NOTE—Footnote 1 was editorially updated in September 2011.
INTRODUCTION
Rimboardassembliesareanengineeredcomponentwithinlight-framewoodplatformconstruction.
Rim board assemblies may serve in multiple structural capacities, including: providing floor closure
and diaphragm attachment, transferring vertical and in-plane lateral loads, restricting out-of-plane
rotation and lateral translation at the ends of the floor joists, providing deck ledger attachment, and
spanning wall openings as a header material. Rim board products, which serve a principal role as a
component integrated within a rim board assembly, can vary by wood species, size, shape, and type.
Rim board products and assemblies require evaluation of their mechanical properties, physical
properties, and their response to end use environments. Procedures established in this Specification
provideameanstotestrimboardproductsandassemblies,tojudgetheiracceptability,andtoestablish
allowable design capacities.
1. Scope
1.1 Thisspecificationprovidesproceduresfortestingandestablishingthestructuralcapacitiesofproprietaryrimboardproducts
andassembliesforuseinlight-framewoodconstructionusingI-joistorstructuralcompositelumberjoistframing.Itdoesnotapply
to rim board products manufactured to a commodity rim board standard.
1.2 This specification was developed in light of currently manufactured panel, structural composite lumber, and pre-fabricated
I-joist rim board products as defined in 3.2. Materials that do not conform to the definitions of 3.2 are beyond the scope of this
specification.
1.3 Fire safety, sound transmission, building envelope performance, and cutting/notching attributes of rim board products and
assemblies are all items that may need to be considered in an end-use application. These items fall outside the scope of this
specification.
1.4 This specification primarily considers end use in dry service conditions, such as most protected framing members, where
the equilibrium moisture content for solid-sawn lumber is less than 16 %.
1.5 This specification provides methods to establish “allowable stress” design resistances for use with the National Design
Specification for Wood Construction (NDS). Derivation of design resistances from the test data in accordance with “load and
resistance factor design” or “limit states design” are beyond the scope of this specification.
1.6 Quality control requirements are outside the scope of this Specification.
1.7 The performance of a rim board product will be affected by the constituent wood species, geometry, adhesive, and
production parameters. Therefore, rim board products produced by each individual manufacturer shall be evaluated to determine
their product properties, regardless of the similarity in characteristics to products produced by other manufacturers.
1.8 Where a manufacturer produces product in more than one facility, each production facility shall be evaluated independently.
For additional production facilities, any revisions to the full qualification program in accordance with this specification shall be
approved by an accredited, independent qualifying agency.
1.9 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.
1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
This specification is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.05 on Wood Assemblies.
Current edition approved Aug. 1, 2011. Published September 2011. DOI: 10.1520/D7672–11E01.
Current edition approved Nov. 15, 2011. Published December 2011. Last previous edition approved in 2011 as D7672–11E01. DOI: 10.1520/D7672–11a.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D7672 – 11a
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D9 Terminology Relating to Wood and Wood-Based Products
D198 Test Methods of Static Tests of Lumber in Structural Sizes
D1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
D2395 Test Methods for Specific Gravity of Wood and Wood-Based Materials
D2915 Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
D4761 Test Methods for Mechanical Properties of Lumber and Wood-Base Structural Material
D5055 Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists
D5456 Specification for Evaluation of Structural Composite Lumber Products
D7033 Practice for Establishing Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels
F1667 Specification for Driven Fasteners: Nails, Spikes, and Staples
2.2 Other Standards:
NDS ANSI/AF&PA National Design Specification for Wood Construction
ANSI/ASME Standard B18.2.1
ANSI/APA PRR-410 Standard for Performance-Rated Engineered Wood Rim Boards
ICC-ES AC124 ICC Evaluation Service Acceptance Criteria for Rim Board Products
PS-1 U.S. Product Standard, Structural Plywood
PS-2 U.S. Product Standard, Performance Standard for Wood-Based Structural Use Panels
3. Terminology
3.1 Definitions—Standard definitions of wood terms are given in Terminology D9.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 Rim Board Assembly—An assemblage of framing, sheathing, and fasteners at the boundary of a platform floor or roof
framed with joists.DISCUSSION:The rim board assembly, as illustrated in Fig. 1 for a floor, consists of the sheathing, rim board,
wall plate framing, the ends of any perpendicular (Fig. 1A) or parallel (Fig. 1B) joists, and the variety of fasteners that hold these
components together.
3.2.2 Rim Board—The component of a rim board assembly that provides in-plane lateral and vertical load path continuity,
stability, and closure for the full depth of the joist space. DISCUSSION: As depicted in Fig. 1 and Fig. 2, the longitudinal axis
runs parallel to the wall or foundation framing that supports the platform edge. The product depth extends vertically between the
floor platform sheathing above and the wall or foundation plate beneath the platform.The rim board product provides vertical load
transfer and lateral load transfer through the diaphragm boundary. It works with the sheathing and plate materials to restrain the
rotation and lateral translation of the perpendicular floor joists at their end bearing locations. Except when used in a qualified
header or cantilever application, the rim board bears upon the wall or foundation plate beneath the platform for the full length and
thickness of the product.
3.2.3 Commodity Rim Board—Rim board products manufactured to a standard with commodity product capacities that are
qualified and used by multiple manufacturers. DISCUSSION: Commodity rim board products are not addressed by this standard.
NOTE 1—ANSI/APA PRR-410 is an example of a commodity rim board standard.
3.2.4 Rectangular Wood-Based Rim Board—Astructural composite lumber, oriented strand board, or plywood rim board with
a rectangular cross section.
3.2.5 I-joist Rim Board—A pre-fabricated I-joist rim board.
4. Materials
4.1 General—As a condition to being qualified in accordance with this Specification, a rim board product shall comply with
the requirements and application limitations of Section 4.
4.2 Header Applications—Only rim board qualified for in-plane bending shall be permitted to span a wall opening, foundation
opening, or extend beyond a lower wall to support a cantilevered framing offset at the rim board elevation in the structure. Rim
board used as a header or cantilever shall be designed for the application using the qualified design properties established in
accordance with the reference standards of 4.4. Otherwise, the rim board shall be continuously supported for the full length and
thickness of the product.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
D7672 – 11a
FIG. 1 Typical Rim Board Assembly Sections for Floor Framing
FIG. 2 Orientation for Rim Board
4.3 Fastener Capacities—Rectangular wood-based rim boards and the flanges of I-joist rim boards shall have established
capacities for fasteners inserted parallel with the X and Y orientations of Fig. 2. Minimum allowed spacings shall be set to prevent
unusual splitting of the rim board. Fastener capacities are required to be developed that address (1) connection of the diaphragm
to the top edge of the rim board; (2) attachment of the rim board to wall plates above and below; (3) attachment of the rim board
to the joist ends; (4) attachment of exterior wall siding to the rim board; and (5) attachment of any required hardware to the face.
While it is permissible to develop most of these capacities based upon the material properties established in 4.4 and the relevant
design provisions of the NDS, the in-plane lateral load capacity of the rim assembly shall be empirically established as outlined
in this Specification. If the rim board assembly with a rectangular wood-based rim board is to be additionally qualified to support
an exterior deck ledger, then deck ledger fastener attachments must also be developed.The procedure outlined in this Specification
can be used for the qualification of deck ledger attachments. Alternative deck ledger attachment qualification procedures may be
used in lieu of those contained within this specification provided that they consider all potential failure modes, including deck
ledger splitting perpendicular-to-grain.
4.4 Product Specific Requirements :
4.4.1 I-joist Rim Board Products—I-joist rim board products must be qualified as an I-joist framing material in accordance with
Specification D5055, have a minimum flange width of 1.5 in. (38 mm), and a minimum manufactured length of 8 ft. (2.4 m).
I-joists with sawn lumber flanges shall have established fastener capacities into the face and edge that comply with the provisions
of the NDS. I-joists with structural composite lumber flanges shall have fastener capacities established in accordance with
Specification D5456. Deck ledger attachments to I-joist rim board products fall outside the scope of this specification.
4.4.2 Rectangular Wood-Based Rim Boards—Rectangular wood-based rim board products shall have a minimum thickness of
1.0 in. (25 mm) and a minimum manufactured length of 8 ft. (2.4 m). Additionally, they shall satisfy the following.
4.4.2.1 Structural Composite Lumber—Structural composite lumber rim board products shall be made from a material qualified
D7672 – 11a
in accordance with Specification D5456. The axial tension and compression capacities need not be qualified for rim board
applications unless the product will be permitted to be used as a drag strut or diaphragm chord. SCLrim board products shall have
fastener capacities into the edge and face established in accordance with Specification D5456. Where a Specification D5456 test
method requires minimum specimen dimensions that exceed the product thickness, testing the rim board with its actual thickness
shall be permitted.
4.4.2.2 Proprietary Plywood and Oriented Strand Board—Proprietary plywood and oriented strand board rim board products
shall be initially qualified in accordance with PS-1 or PS-2. In addition, when used as a structural header, the edgewise bending
performance of proprietary plywood and oriented strand board rim board products shall be evaluated in accordance with the
Specification D5456 requirements for laminated veneer lumber or oriented strand lumber, respectively. This evaluation shall
include, but is not limited to, relevant considerations applicable to edgewise bending, such as edgewise flexure, shear, and bearing
design load establishment, duration of load, volume effects, moisture content, etc. The axial tension and compression capacities
need not be qualified in accordance with Specification D5456 for rim board applications unless the product will be used as a drag
strut or diaphragm chord.Where a Specification D5456 specified test method requires minimum specimen dimensions that exceed
the product thickness, testing the rim board with its actual thickness shall be permitted. Proprietary plywood and OSB rim board
products shall have fastener capacities into the edge and face that either comply with published values in the NDS or have been
developed in accordance with Practice D7033.
5. Qualification
5.1 General—This section describes procedures, both empirical and analytical, for initial qualification of the structural
capacities of rim board products and assemblies. Qualification is required for typical details of rim board application since they
are used commonly and influence structural capacities.
5.2 Qualification Process—Rim board products shall be tested in accordance with Section 6 and evaluated in accordance with
Section 7. The allowable design values and durability targets shall comply with the limitations specified by Table 1.
5.2.1 When deck ledger attachments are qualified for rectangular wood-based rim board products using the procedure outlined
in this specification, they shall comply with the limitations specified in Table 2.
5.2.2 When a manufacturer chooses not to establish a concentrated vertical load capacity in accordance with the provisions 6.3
and 7.3, then squash blocks or alternative detailing provisions shall be provided to address concentrat
...
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