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Strong-Wall Shearwalls catalog (C-SW07) Strong-Wall
®

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6
IMPORTANT INFORMATION & GENERAL NOTES
The following Warnings, Notes, Instructions and product information apply
only to the specific products listed in this catalog. If you use any other Simpson
Strong-Tie Company Inc.
®
products, read the Warnings, Notes, Instructions and
product information in the applicable catalog and consult www.strongtie.com
for the latest catalogs, bulletins and product information.
Simpson Strong-Tie Company Inc. structural connectors, anchors, and other
products are designed and tested to provide specified design loads. To obtain
optimal performance from Simpson Strong-Tie Company Inc. products and
achieve maximum allowable design load, the products must be properly
installed and used in accordance with the installation instructions and design
limits provided by Simpson Strong-Tie Company Inc. To ensure proper
installation and use, designers and installers must carefully read the following
General Notes, General Instructions For The Installer and General Instructions
For The Designer, as well as consult the applicable catalog pages for specific
product installation instructions and notes.
Proper product installation requires careful attention to all notes and
instructions, including these basic rules:
1. Be familiar with the application and correct use of the product.
2. Follow all installation instructions provided in the applicable catalog,
website, Pocket Installers Guide or any other Simpson publications.
3. Install all required fasteners per installation instructions provided by
Strong-Tie Company Inc.: a) use proper fastener type; b) use proper
fastener quantity; c) fill all fastener holes; d) do not overdrive or
underdrive nails, including when using gun nailers; and e) ensure
screws are completely driven.
. Only bend products that are specifically designed to be bent. For
those products that require bending, do not bend more than once.
In addition to following the basic rules provided above as well as all notes,
warnings and instructions provided in the catalog, installers, designers,
engineers and consumers should consult the Simpson Strong-Tie Company
Inc. website at www.strongtie.com to obtain additional design and installation
information, including:
Instructional builder/contractor training kits containing an instructional video,
an instructor guide and a student guide in both English and Spanish;
Information on workshops Simpson conducts at various training
centers throughout the country;
Product specific installation videos;
Specialty catalogs;
Code reports;
Technical fliers and bulletins;
Master format specifications;
Material safety data sheets;
Corrosion information;
Simpson Autocad menu;
Simpson Strong-Wall Selector software; and
Answers to frequently asked questions and technical topics.
Failure to follow fully all of the notes and instructions provided by Simpson
Strong-Tie Company Inc. may result in improper installation of products.
Improperly installed products may not perform to the specifications set forth
in this catalog and may reduce a structures ability to resist the movement,
stress, and loading that occurs from gravity loads as well as impact events
such as earthquakes and high velocity winds.
Simpson Strong-Tie Company Inc. does not guarantee the performance or
safety of products that are modified, improperly installed or not used in
accordance with the design and load limits set forth in this catalog.
WARNING
a. Simpson Strong-Tie Company Inc. reserves the right to change specifications,
designs, and models without notice or liability for such changes.
b. Steel used for each Simpson product is individually selected based on the
products steel specifications, including strength, thickness, formability, finish,
and weldability. Contact factory for steel information on specific products.
c. Unless otherwise noted, dimensions are in inches, loads are in pounds.
d. Unless otherwise noted, welds, screws, bolts and nails may not be combined
to achieve highest load value. 8d (0.131"x2Z\x"), 10d (0.18"x3"), and 16d
(0.162"x3Z\x") specify common nails that meet the requirements of ASTM
F1667. When a shorter nail is specified, it will be noted (for example 8dx1Z\x).
Refer to Simpsons Nailing Guide, NDS (National Design Specification) and
ASTM F1667 (American Society of Testing and Materials) for more nail info.
e. Do Not Overload. Do not exceed catalog allowable loads, which would
jeopardize the product.
f. Unless otherwise noted, allowable loads are for Douglas Fir-Larch under
continuously dry conditions. Allowable loads for other species or conditions
must be adjusted according to the code. In many cases, Simpson code
reports will indicate loads derived from Doug Fir header material only.
However under ICC-ES AC13, loads for Douglas Fir are the same as LVL,
LSL, PSL, Glulams and Southern Pine, since the specific gravity of these
wood species fall within the specific gravity range of the AC13 criteria.
The section from the AC13 criteria indicating the range of specific
gravity reads as follows: 3.2.3 The species of lumber used shall have a
specific gravity of 0.9 or greater, such as Douglas Fir, but not greater than
0.55 as determined in accordance with the NDS. This chart shows specific
gravity for the different wood species as listed by NDS.


Species
Fc

Specific gravity

Douglas Fir-Larch (DF)
625 psi

0.50

Southern Pine (SP)
565 psi

0.55

Spruce-Pine-Fir (SPF)
25 psi

0.2

Hem Fir (HF)
05 psi

0.3

Glulam
560 psi

0.50

LVL (DF/SP)
750 psi

0.50

TimberStrand
®
LSL (E=1.3x10
6
)
680 psi

0.50

TimberStrand
®
LSL (E>1.5x10
6
)
880 psi

0.50

Parallam
®
PSL
750 psi

0.50
g. All references to bolts or machine bolts (MBs) are for structural quality

through bolts (not lag screws or carriage bolts) equal to or better than

ASTM Standard A307, Grade A.; SSTB and SSWAB is ASTM A36.

SSWAB-HS is ASTM A9.
h. Unless otherwise noted, bending steel in the field may cause fractures at

the bend line. Fractured steel will not carry load and must be replaced.
i. A fastener that splits the wood will not take the design load. Evaluate splits

to determine if the connection will perform as required. Dry wood may

split more easily and should be evaluated as required. If wood tends to

split, consider pre-boring holes with diameters not exceeding .75 of the

nail diameter (2001 NDS 11.1.5.3).
j. Wood shrinks and expands as it loses and gains moisture, particularly

perpendicular to its grain. Take wood shrinkage into account when

designing and installing connections. Simpson manufactures products

to fit common dry lumber dimensions. If you need a connector with

dimensions other than those listed in this catalog, Simpson may be able

to vary connector dimensions; contact the factory. The effects of wood

shrinkage are increased in multiple lumber connections, such as floor-to-

floor installations. This may result in the vertical rod nuts becoming loose,

requiring post-installation tightening. (Contact Simpson for information

on the Simpson Strong-Tie Takeup Device.)
k. Built-up lumber (multiple members) must be fastened together to act as

one unit to resist the applied load (excluding the connector fasteners).

This must be determined by the Designer/Engineer of Record.
l. Some model configurations may differ from those shown in this catalog.

Contact factory for details.
m. Do not weld products listed in this catalog unless this publication specifically

identifies a product as acceptable for welding, or unless specific approval

for welding is provided in writing by Simpson. Some steels have poor

weldability and a tendency to crack when welded. Cracked steel will not

carry load and must be replaced.
GENERAL NOTES
These general notes are provided to ensure proper installation of Simpson Strong-Tie Company Inc. products and must be followed fully. Strong-Wall
®

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7
IMPORTANT INFORMATION & GENERAL NOTES
a. All specified fasteners must be installed according to the instructions in
this catalog. Incorrect fastener quantity, size, placement, type, material,
or finish may cause the product to fail.
16d fasteners are common nails (0.162" dia. x 3Z\x" long) and cannot
be replaced with 16d sinkers (0.18" dia. x 3Z\v" long) for full load
value unless otherwise specified.
Screws may not be used to replace nails in connectors.
When using stainless steel connectors, use stainless steel fasteners.
When using ZMAX
®
/HDG galvanized connectors, use fasteners
galvanized