Weyerhaeuser FAQs

This binder contains relevant market design guides, technical information and product specification language to aid you in the specification/use of Trus Joist products.

Included is a Trus Joist Design eManual spreadsheet which takes the user directly to code reports, design guides, and technical bulletins which reside on Weyerhaeuser corporate servers. This way these pieces of literature are always updated for your use.

Please download the .zip folder that is attached to this article. After the download is complete, extract the folder within and save it to your desktop.

If you prefer a hard copy, please contact your local Trus Joist representative.Contact information may be found in the Trus Joist Design eManual spreadsheets first summary tab.

The hole chart on page 9 of the TJI Specifiers Guide show the allowable locations for various size holes based on joist depth and spacing foruniformly loaded joists. This chart allows holes 1 and smallerto be drilled anywhere in the web outside of the hatched zone. All holes larger than 1 must be spaced at least 12 from the edge of the holeto the inside face of bearing.

Although cutting holes larger than 1in TJIjoist webs near end bearings is notpermitted in the table, we recognize that this condition does arise. Technical Bulletin TB-817 provides a possible repair for round holes within 12 of the face of an end bearing. The applicability of this repair is based on hole size, joist properties, load and on center spacing. The maximum allowable hole is 6 diameter in a 16 deepTJIjoist.

For joists that arenot uniformly loadedor otherwise do not fit the parameters of the technical bulletin, please contact Weyerhaeuser Technical Support.

To identify the performance level of Weyerhaeuser OSB panels, grade stamps are provided on one face of every panel. The stamp contains panel grade, allowable span ratings for various applications, installation info, applicable manufacturing standards, and the certifying agency. For information on reading Weyerhaeuser OSB grade stamps click on links below and refer to the back page of the guides.

FLOOR, ROOF, AND WALL PANEL INSTALLATION - OSB-4004

INSTALACIN DE PANEL PARA PISO, TECHO Y PARED - OSB-4004S

Weyerhaeuser Framer Series Lumber is Southern pine lumber that is graded to a higher standard than typical lumber. Weyerhaeuser's patented computerized grading system ensures that every piece starts straight and stays straight. Framer Series Lumber is performance tested to meet specific strength and density requirements making it more stable than commodity boards and ideal for any application. With this system, Weyerhaeuser's Framer Series Lumber comes with-the crown clearly marked to speed up installation. Aside from a better grading standard,Framer Series Lumber now comes protected with an effective anti-stain agent that provides sapstain and mold control.

M-9, M-12, and MSR 1650 values meet or exceed those of #2 SPF and #2 Southern pine, making Weyerhaeuser Framer Series Lumber acceptable for use in any code-evaluated application that allows those products.

Specifier's guide Weyerhaeuser Framer Series Lumber

Weyerhaeuser Framer Series Lumber

TRUS JOIST

Trus Joist Product Warranty Certificate

Trus Joist No Red Tag Guarantee

Trus Joist TJI Joist Warranty

Trus Joist Parallam PSL Warranty

Parallam Plus PSL Limited 30-Year warranty

Trus Joist Microllam LVL Warranty

Trus Joist TimberStrand LSL Warranty

Trus Joist StrandGuard TimberStrand LSL Warranty

RIM BOARD

Weyerhaeuser 1 18 Rim Board Warranty

Trus Joist TJ Rim Board Warranty

LUMBER

Weyerhaeuser Framer Series Lumber Warranty

PANEL PRODUCTS

Weyerhaeuser Diamond Warranty

Weyerhaeuser Edge Gold Structural Panels Warranty

Weyerhaeuser Edge Gold Roofing Panels Warranty

Weyerhaeuser Edge Structural Panels Warranty

Weyerhaeuser OSB Sheathing Warranty

Weyerhaeuser SturdiStep Stair Treads Warranty

Weyerhaeuser Radiant Barrier Sheathing (RBS) Warranty

TB-213 Flood-Damage-Resistant Material Considerations

TB-605 2-11/16 Wide 2.0E Parallam PSL

Design information for 2-11/16 2.0E Parallam PSL

TB-316 Forklift Recommendations for Trus Joist Structural Composite Lumber

Guideline for allowed product length when moving Weyerhaeuser engineered wood products with a forklift

Weyerhaeuser is occasionally asked if our OSB floor sheathing panels such as EdgeTM or Edge GoldTM are warranted for use in premanufactured garden sheds. And as a secondary question, do we have any coating recommendations to seal the top surface against contaminants (from stored equipment gas/oil leakage since there are no finish surfaces on top of the OSB deck).

Weyerhaeuser OSB panels are warranted against delamination when properly installed as single-layer flooring(a concept generally associated with living space in a finished structure). As a result, this application is outside the scope of the Weyerhaeuser Warranty.

Functionally, the panels perform the same whether installed on residential floor joists or garden shed floor joists. Environmentally, however, the applications can be radically different.

Residential building codes generally require a minimum clear distance between the floor structure and the ground surface below. If that clear distance cannot be maintained, then preservative treated framing material must be used to prevent decay due to long term exposure in high moisture conditions near the soil.

Garden/utility sheds have few requirements regarding placement or support. They are often minimally supported with the floor framing a few inches above the ground surface. This type of environmental condition may lead to decay and compromised structural integrity long before the 25 to 50 year warranty period for the Weyerhaeuser panel expires.

As for what coating may be effective in preventing/limiting absorption of various utility shed chemicals, Weyerhaeuser has no experience with such and can offer no recommendations. Note that the top surface of the uncovered OSB panels could possibly develop strand pops over time and has voids that could trap organic material which could promote decay.

TB - 157 French

Oriented Strand Board or OSB is a versatile engineered structural panel often used for floor decking and wall/roof sheathing. Logs are debarked and then cut into rectangular strands that are arranged in cross-oriented layers to produce a panel that is strong and consistent. Weyerhaeuser offers several OSB products for structural applications. Weyerhaeuser Edge, Edge Gold andDiamond panels are the panel of choice for starter homes to dream homes.

Weyerhaeuser Edge hasself-gapping tongue-and-groove edges that automatically gap panel edges the recommended 1/8".This allows for easy installation, making these panels efficient for tight construction timelines.

Weyerhaeuser Edge Gold panels, aside from the tongue and grove system, haveDown Poretechnology that allows rainwater to drain from the floor. This is extremely important during construction as the panels remain drier and stay flatter, facilitating finish flooring installation. In addition, these panels come with a 200-day no sand guarantee. Below is a video link to show how it works.

How it works! Video on Down Pore technology

Weyerhaeuser Diamond panels, have the same tongue and grove system, and Down Poretechnology but have proprietary design properties higher than commodity panels. They are engineered to compete with the best panels on the market in strength, nail retention and weather resistance. Quality matters and these superior capabilities help in preventing squeaky floors, ridging hardwood, and cracking tile. These panels come with a 500-day no sand guarantee and a limited lifetime warranty.

To view the OSB mill tour click here

For more information -

OSB Installation Information

WY-OSB & PANELS

Choosing Engineered Panels Over Plywood - OSB 4203

OSB Ice/Snow on Weyerhaeuser Edge & Edge Gold Panels - OSB 4201

Weyerhaeuser Edge & Edge Gold Floor Panels Design and Installation Information -Canada TB 157

The maximum size and location of allowable holes is based on product type and depth.

Depending on theirlocation in the span, holes up to 2" may be allowed in Microllam LVL,Parallam PSL and1.3E TimberStrand LSL, and holesup to 4 5/8" may be allowed in 1.55E TimberStrand LSL. Seepage 26 in TJ-9000 for additional info on allowable hole size, placement and limitations.

Contact Weyerhaeuser Technical Support for holes that are beyond the limitations of the charts.

Weyerhaeuser is proud to be a continuingeducation provider for theAmerican Institute of Architects. See the links below for catalogs detailing our course offerings. To schedule a seminar please contact your local Weyerhaeuser Representative or email us at [email protected].

If you have attended one of our AIA sessions recently, we would love to hear your feedback. Please take our survey here - www.wy.com/AIA

A fire cut joist is designed and installed the same as a typical floor joist with one exception. At a supporting wall aregular joist has a square cut end, whereasa fire cut has an angled cut on the end.The cut angles away from the outside wall so that in the case of a fire severe enough to cause a floor collapse, THE JOIST CAN ROTATE OUT OF ITS BEARING, LEAVING THE WALL INTACT.If the joist has a regular square cut end, as the floor collapses, the end of the joist can push up on the wall above it, causing that wall to tip outward and endanger people outside of the building.

The detail below is conceptual only, showing the potential joist end cut geometry. Other considerations (by others) may be necessary, such as the design of the wall, diaphragm attachment detailing/design, etc.

Fire cuts are permitted on TJI joists provided:

The TJI joist has sufficient bearing,

The cut does not extend past the inside face of the wall.

The joist has full depth lateral support.

Download many useful resources to evaluate repairs here - REPAIR BINDER

Pre-fabricated wood I-joists and structural composite lumber (SCL) products do not require an engineers seal on design calculations.

Since all building materials cannot possibly be covered in the code, the IRC permits using alternative materials including engineered wood products. As a manufacturer of engineered wood products, we rely on our code reports as evidence of acceptability as alternative materials ( IRC R104.11 ). To help the building official verify the acceptability of alternate materials, the ICC Evaluation Service, Inc. (ICC ES), was established for the purpose of providing an independent and impartial review of alternate materials for compliance with the building codes. Our ICC-ES code reports provide clear evidence that products comply with codes and standards and are, therefore, code accepted. TJI joists, Microllam, Parallam and TimberStrand products are fixed property materials, as is solid sawn lumber. EWP is different from plated trusses which are custom built for each job anddon'thave code reports.

Using the code reports as a basis, manufacturers frequently develop literature and software tools to aid in the specification and installation of the products. The manufacturers span/load tables for the material in question may be used to verify its structural acceptability in a given application. Literature by the manufacturer typically has span/load tables that show the load capacity of the member for various spans, in pounds per linear foot of the member. For more complex applications such as point load conditions, our software tools such as Forte can be used for design.

When sealed documentation is requested for engineered wood products it is often due to a misapplication of the requirements for plated trusses. More information on the differing requirements can be found in TB-120, Engineers Seal Requirements forI-Joists, Structural Composite Lumber and Plated Trusses. Requesting seals when not required, adds unnecessary costs and delay to the project and is contrary to the intent of the residential code which is to allow prescriptive construction of a typical house without needing a design professional. In most cases, wood I-joists and structural composite lumber (SCL) products do not require an engineers seal on design calculations.

Weyerhaeuser does not act as the engineer of record for any project. The proper authority is to review any calculations and confirm they are consistent with the intent of the overall building design.

Additional Resource-

Using Weyerhaeuser Products in Conventional Code: Technical Resource Sheet 1502

Refer to the hole chart on page 9 of the TJI Specifiers Guide for uniformly loaded joists.

Often, hole size can be increased and holes can be placed closer to bearing than shown on the chart based on actual design spans and loads. Use ForteWEB single member sizing software to check hole sizes and locations or contact Weyerhaeuser Technical Support for more help.

Trus Joist product design values can be found in the Specifier's Guide for each product. For design values not listed in the Specifier's Guide,Weyerhaeuser's Code Evaluation Reports website can be used to select the code report for a specific product. The most common Evaluation Reports are shown below.

Specifier's GuidesEvaluation Reports

Products Included

TimberStrandLSL CCMC Report

TJI Joists Specifier's Guide

ICC-ES Report ESR-1153

US TJIJoists

Specifier's Guide - Eastern Canada

Specifier's Guide - Western Canada

CCMC Report 13132-R

Canadian TJIJoists

Beams & Columns Specifier's Guide

ICC-ES Report ESR-1387

Rim Board

US

TimberStrandLSL,

MicrollamLVL,

ParallamPSL Headers and Beams

TimberStrandLSL Rim Board

TJRim Board

e-RimBoard

TJRim Board

Specifier's Guide - Eastern Canada

Specifier's Guide - Western Canada

MicrollamLVL CCMC Report

ParallamPSL CCMC Report

Canadian

Trus JoistBeams,

Headers and Columns

Download all of our most frequently used literaturehere - Specifiers Guides

Download resources on Floor Performance Binder

Occasionally, concerns arise about notches or holes cut in Trus Joist (TJ) products used in continuously supported applications such as rim.

Rim is not a structural member in the traditional sense, as it is generally not required to span a distance while supporting vertical load. The purpose of rim in conventional construction is to provide lateral stability and transfer vertical loads through the structure. For this general usage, sporadic holes and/or flange notches are not critical.

From a code standpoint, if the rim is in the proper location and properly connected, no other requirements are given to gauge performance. Dimension lumber band joists are often cut for wiring holes, air ducts, etc. The criteria for judging continuously supported TJ products should be similar to that used for continuously supported dimension lumber; i.e., occasional holes and notches have no impact on their function so long as there is not a large point load located above the hole.

Likewise, notches in the flanges of continuously supported TJI Joist Rim are permissible. Joist flanges resist bending stresses when a joist is spanning from one support to another. When joists are continuously supported the flanges can be cut with no impact because the joist is only transferring vertical loads.

For additional information specific to holes in TimberStrand LSL Rim Board see the Rim Board Specifier's Guide.

A Ridge Beam and a Ridge Board are both located at the ridge but they serve very different purposes for very different applications.

A ridge beam is a structural member used to support the ends of the rafters at the ridge, transferring it's loads to posts or gable end walls. Ridge beams are required by code if the roof slope is less than 3 in 12 (IRC section R802.3). Ridge beam sizing is based on the span of the beam between supports, and the amount of roof load supported by the beam.

A ridge board is a non-structural member that serves as a prop for opposing rafters to rest against and connect to.Ridge boards can only be used in roofs with slopes from 3 in 12 up to 12 in 12. Ridge boards shall be at least 1 inch nominal thickness and not less in depth than the cut end of the rafter (IRC section R802.3).

Chapter 8 of the International Residential Code (IRC) prescribes the elements for a type of roof frame known as a 'compression roof'. The figure below shows selected code sections that must be considered when designing this type roof.

Figure R802.5.1 - Braced Rafter Construction

Microllam LVL

Microllam LVL (Laminated Veneer Lumber) is one of the older Trus Joist products but is still a versatile performer in a wide range of structural applications. Microllam LVL is engineered from large sheets of veneer laminated together to form a rectangular beam product. Each veneer is graded ultrasonically so the veneer mix can be tailored to meet the required design characteristics. This makes consistently straight and stable sections, virtually eliminating shrinkage and twist when used properly. It can be used as window and garage door headers, floor beams, floor joists, roof beams and roof joists/rafters.

Features

High strength

Deep depths

Versatile, multi-ply applications

Watershed overlay moisture barrier

For more information:

Solid section Parallam PSL and TimberStrand LSL columns are strong and consistent.

The Beam, Header & Column Specifier's Guide gives allowable axial loads for solid TimberStrand LSL and Parallam PSL columns on page 30.

Technical Bulletin TB - 604 shows additional axial column capacity for large section 2.0E and 2.2E Parallam PSL columns.

Technical Bulletin TB - 608 compares capacities of SPF and SYP built-up stud table columns to solid section Parallam PSL

Q: Where can I find pricing for Weyerhaeuser products?

A: Pricing will vary by dealer. We have an online utility to help you locate a local dealer by zip or postal code http://www.woodbywy.com/wyfinder/. The utility can also be accessed from within ForteWEB by clicking the Where To Buy link on the Product Tab.

Since engineered wood products, such as TJI joists, Microllam, LVL, ParallamPSL, and TimberStrandLSL, are not addressed prescriptively in the code, our code reports serve as evidence of acceptability as alternative materials. The following language from the International Residential Code (IRC), permits using alternative materials, including engineered wood products:

- The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code.

To help the building official verify acceptability of alternate materials, the ICC Evaluation Service, Inc. (ICC ES), was established for the purpose of providing an independent and impartial review of alternate materials, designs or methods of construction for compliance with the building codes. ICC-ES provides this verification in accordance with the ASTM standards mentioned below.

Prefabricated wood I-Joists are specifically covered under Section R502.1.2 of the IRC and this section states that "Structural capacities and design provisions for prefabricated wood I-joists shall be established and monitored in accordance with ASTM D 5055."Beginning with the 2015codes, rim board products are covered under Section R502.1.7 which references ASTM D 7672.

Similar to TJI Joists, structural composite lumberproducts (Microllam LVL, Parallam PSL, and TimberStrand LSL) are covered under Section R502.1.5 of the IRC and this section states that "Structural capacities for structural composite lumbershall be established and monitored in accordance with ASTM D 5456."

Weyerhaeuser has established and continues to work with independent 3rd parties to monitor structural capacities and design provisions, as required, for TJI Joists andMicrollam LVL, Parallam PSL, and TimberStrand LSL structural composite lumber product as verified by the reports below.

ICC-ES Evaluation Reports:

Trus Joist TJI Joists: ESR-1153

Structural Composite Lumber -Trus Joist TimberStrand LSL; Microllam LVL;Parallam PSL;TimberStrand LSL Rim Board; TJ Rim Board; and Weyerhaeuser Rim Board: ESR-1387

State of Florida Product Approvals:

Trus Joist TJI Joists: FL1630-R10

Structural Composite Lumber: FL6527-R10

City of Los Angeles Research Reports:

Trus Joist TJI Joists: Included as supplements in ESR-1153

Structural Composite Lumber: Included as supplements in ESR-1387

Additional Resources:

Using Weyerhaeuser Products in Conventional Code: Technical Resource Sheet 1502

Engineer's Seal Requirements for I-Joists, Structural Composite Lumber and Plated Trusses: TB-120

Does Weyerhaeuser have a recommended detail for installing radiant floor tubing to the underside of the floor sheathing?

The typical detail for insulating radiant floor heating is to attach the tubing to the underside of the floor sheathing and use batt insulation below to reduce energy losses to the basement. Usually furring strips or 2x are nailed to the TJI webs to support the batting. This may be easy to install but may cause some problems. The insulation below the tubing isolates the top flange in a warm dry environment while the bottom flange is in unconditioned space. When wood is moist, it will expand. Since the expansion due to moisture occurs on the bottom flange (the flange exposed to unconditioned space), there could be additional deflection beyond anticipated.

This detail is our preferred radiant floor heat detail as it better isolates the tubing from the floor structure so no energy is wasted heating the wood and both flanges experience the same environment. In addition, the aluminum heat plates will conduct more heat up to the sheathing, a more efficient heat path.

Click the link below for a PDF of this detail.

Yes, a deck ledger can be attached to the TJIfloor system that contains either 1-1/8" or 1-1/4" or thicker Trus Joist rim board. Below are details taken from our TJIfloor system specifier's guide that provides allowable lag and through bolt values for both rim board thickness to support vertical load from a deck. It is important to note that starting with the 2009 edition of the International Residential Code (IRC), an exterior deck must also be laterally connected to the main structure in at least 2 locations with a tension tie capable of withstanding a minimum of 1500 lbs (see Deck Lateral Load Connection to a TJI Floor System for more information).

Prescriptive Wood Deck Design Guide-American Wood Council

The following links provide additional information on deck ledgers, lateral connections and deck design:

Trust Joist Rim Board TJ-8000 See page 5 for additional information, including details shown above

FAQs on designs on decks Blog on deck design

TB-304 Technical bulletin discussing deck ledger attachments

Q:How do I add individual member notes in ForteWEB?

A: Select the Member in the Job Tree and select the Member Info tab. Add information to the Member Notes field. An additional grid will be added to the member report below the Loads grid for that member only.

Weyerhaeuser Learning provides educational resources to help customers get the most from our products and services. Whether you are a seasoned sales professional, a builder using our products, a dealer software expert, or a construction industry newcomer working with building materials and services for the first time, we offer resources to help you develop your professional skills.

Q: How do I move or reorder the members in the ForteWEB Job Tree?

A: Users can not only move members between levels, but can also drag and drop members in the Job Tree. For more questions and answers to FortWEB questions, please visit our ForteWEB Frequently Asked Questions page.

Possibly. The strength of the beam will be decreased as a result of the hole. If it is possible to run the wire beside the beam, do that. If not, contact Weyerhaeuser Technical Support for a "Repair Request." We will need the beam span(s) and all load information for analysis.

Panel 15 was a product that was made as part of Weyerhaeuser's Architectural Panels Division. In 1992 that division of the company became a separate company called Citadel Architectural Products (who still makes Panel 15 as one of their products). I'd recommend contacting them, as information on the products would have transferred to them in 1992. Their website is: http://www.citadelap.com/company/

Citadel Phone Number: 1-800-446-8828.

Microllam LVL should only be used in dry (interior use) applications andshould not be pressure treated. LVL is not suitable for the pressure treatment process due to material density and glue lines. Also some wood species used in Microllam LVL production may not be appropriate to absorb the chemicals used in treatment.

The best choice for exterior use isour treated Parallam Plus PSL. Our treated Parallam Plus PSL is made from Southern Pine which is a species that can be easily treated.

For more information:

Preservative Treatments Approved for Trus Joist Engineered Wood Products

Parallam Plus PSL information

Web Stiffeners are short pieces of wood (typically OSB) that fit between the web and flange.

TJ -4500 Canada pg 25

Loads applied to aTJI joist must transfer through the bottom of the joist into the support structure-typically by means of a wood plate or joist hanger. Adding web stiffeners at the bearing location will increase the reaction capacity of the joist if the design is limited by flange splitting, rout bearing strength or web crushing. Because web stiffeners transfer vertical load from the web to the bearing interface between the flange and the web stiffener, the web stiffener must be square and flush at this interface in order to work properly. Web stiffeners may also be required to help resist web buckling forces or to resist rotation when a joist hanger does not support the joist top flange.

Here are some common applications of web stiffeners:

Continuous span joist may require web stiffeners to help increase internal load capacity of the joist at the intermediate bearing.

When joist hangers are used and the top flange is not lateral supported, the joist can rotate and will require web stiffeners.

When TJIs are used as roof joist, a web stiffener is always required if the low end is birdsmouth cut at the top plate.

TJ-4000 pg 27

Squash Blocks are short pieces of lumber or EWP cut 1/16 longer than the depth of the joist. Their purpose is to transfer vertical loads around the joists to bearing below. Squash blocks do not provide lateral support.

Two common reasons for squash blocks are:

To carry load-bearing walls that stack above walls (or beams)

To carry concentrated loads from above through the floor

Squash Blocks installation video (B2/CS detail)!

Check out our

TJI Joists can be used as ceiling joists. However, one must considertwo design aspects that are not present in typical floor or roof joist applications. First, the top flange of the joists requirebracing if there is nodirect applied sheathing. Secondly, the ceiling joists and end connections will require further consideration ifthrust loads from a conventionally framed (rafter) roof system are present. The link below provides additional information and span tables for TJI Joists in ceiling applications.

TB 824 - Ceiling Joist

Occasionally during utility installation,TJI joist flanges or webs are damaged to the degree that a repair may not be practical or possible. For these situations, a commonway to repair the damaged TJI joist is to install headers on both sidesof the damaged area, attached to the adjacent TJI floor joists. The bulletin below shows header installation details along with joist span/spacing scenarios where the header detail is acceptable.

TB 319 -TJI Joists Header-Off Table

The functionof a rim board is to provide for the transfer of loads applied from the walls, floors and roof above, including lateral forces from the diaphragm, to the wall or foundation below. Both of these load transfers must occur in order for the structure to perform properly.

TJI joistshave series/depth specific allowable design properties. The TJI joist span tables are based on full utilization of theseproperties to maximize distances. Efficient design of the TJI joist system assumes loads from walls above are supported by the rim and not the joist. This means the loading is transferred around the joist, not through the joist and thereby reducing the remaining capacity of the joist to resist it's own loading.

To ensure proper load transfer around the joist, the rim depth must closely match that of the joist. Solid sawn lumber used as rim material will not perform adequately in a TJI framing system. Generally, TJI depths don't match lumber depths. More importantly, the moisture content of sawn lumber yields a finished height after shrinking that will prove to be ineffective in the finished structure.

The best choice of rim board is one that is engineered itself, with depths to match the joists, produced with a low moisture content and having specific load capabilities.

WIJMA Position Statement: Solid Sawn Rim Boards

TB-108 Designing Indoor Pools

Technical information to keep in mind when designing indoor pools

Blocking Panels- are pieces of TJI Joists or solid sections of Structural Composite Lumber (SCL) that fit perpendicular between the joists. Blocking panels transferboth vertical and lateral loads through the floor.

Five primary uses ofblocking are:

To transfer load from stacking bearing walls above to bearings below

To transfer diaphragm or shear wall loads through the floor into a wall or foundation below

Provide lateral support for joists at bearing locations including cantilevers, multi-span conditions, and ends of joists

To prevent rollover during installation of joists that lap or butt over a bearing

Fire draft stop

Check out this video on B1 detail!

TJI blocking at cantilever

Live Load is defined by ASCE 7-10 as "a load produced by the use and occupancy of the building or other structure that does not include construction or environmental loads such as wind load, snow load, rain load, earthquake load, flood load, or dead load. (Please refer to Dead Load article for clear distinction of live versus dead loading.)

As a home owner it is important to understand Live Loads, as they may affect floor performance. For one and two family (residential) homes,only two classifications of live loading are used for floors. They are sleeping rooms and rooms other than sleeping room. This loading is used to determine what materials may be needed to construct the home. The loading comes from the table shown below, which is found in the International Residential Code (IRC), Chapter 3:

International Residential Code for One- and Two-Family Dwellings

For more information on the IRC click on the link

In many parts of the country it is standard practice to install headers (especially garage door headers) dropped. A "dropped header" is a header that is installed below the roof or floor framing with a short wall (knee wall) between the header and the top plate. This detail can be problematic if the beam isnotdesigned for the unbraced condition.

Consideration of the stability of abeam is important to prevent buckling or "kicking out" of the header at the top edge. Detail L15illustrates a single span condition where lateral support has been provided by raising the primary structural header tight to the top plate which restrains the top edge of the header.

Lateral Support of Wood Beams in Residential Structures In cases where it is impracticalto raise the header as shown in detail L15, the header should be designed for the unbraced condition. Forte software can be used to calcuate the maximum allowable unbraced length of the headerbased on the loads. The unbraced length isthe intervalthat bracing is required on thecompression edge (generally the top) to prevent buckling. In these dropped situations the calculated allowable unbraced length should beequal to the header clear span. The equations used to calculate the maximum unbraced length are related to the member bending stress.The calculation also takes into account the fact that multi-ply members are not as stable as a solid sectioneven when fastened properly. For this reason is it often desirable to use wider solid section beams rather than multi-ply membersto enhance buckling resistance.

Another option, limited to shallow headers and short spans, is to provide bracing by installingsheathing continuous from bottom of beam to top of wall. This detail, L16, has specific fastening requirements that must be followed to achieve a fully braced dropped header condition. Note that detailL16is limited to the conditions below.

Single-ply:

1" wide headers, 117 8" deep or less

3" wide headers, 16" deep or less, with a maximum span of 18'-6"

Multiple-ply:

Headers up to four 1" plies, 117 8" deep or less

Headers up to four 1" x 14" plies, with a maximum span of 8'-6"

Details L15 & L16are found inourSpecifiers Guide TJ-9000 (page 25)for the US & TJ-9505 (page 11) for Canada.

TheWood I-Joist Manufacturers Association provides similar details and design information in their Design Guide - WIJMA Dropped Header Design Guide.

This critical issuewasalso highlighted in STRUCTUREMagazine -.

TB-305 Moisture Protection for Wood-Framed Balconies, Decks and Elevated Walkways

Guidance on the protection of structural framing for balconies, decks and elevated walkways

Our heavy commercial division that produced the open web product was purchased by RedBuilt. They are thebest resource for answering questions about these products.

RedBuilt Website

Q: What are my resources for learning how to operate ForteWEB?

A: You have alot! You are presented with a step-by-step interactive Tour when you first create your account. You can access Chat and re-launch the Tour from the Help menu at the top-right within ForteWEB.

ForteWEB has context specific Help within the program. Just press the F1 key and you will be taken to the Help page related to where you are in the software.

We have 16 short training videos on YouTube starting with a Getting Started video. To access the training videos simply click this YouTube Link.

Our Software Support Team is available during business hours to answer your questions. To contact our Software Support staff, call (800) 833-9491, email [email protected] or chat at http://www.woodbywy.com/software/

Q: How do I customize the default loads or quick loads list?

A: This is an advanced topic. Please watch our training video on ForteWEB Settings.

Load Path Labels: Show Reaction Magnitudes on Layout

If you need to show reaction magnitudes on the layout Load Path Labels might be your answer. User and System generated loads may be shown on the layout. First, go intoJob Properties (or to create a new scheme Schemes)> Job Settings> Labels> Labels: Load Path.

Edit the settings for both the Applied Loads and Transfer Reactions as desired.

NOTE:Enter the desired load magnitude for the Downward and Uplift Loads in the Transfer Reactions settings to determine when the Load Path Labels will display for each member type. Entering zero will turn off the display entirely.

Edit the Show Combination for Total Load setting for both Applied Loads and Transfer Reactions to display a summary of the downward loads used. For example, (D+L+S) would be displayed if Dead, Floor Live, and Snow Loads were used to determine the value.

To turn on the Load Path Labelsonce the settings have been edited, go to the Analysis and Design Tab > Outputand click the Create/Refresh Load Path Labelstool. Load Path labels have their own Visibility Switches under Labels that may need to be turned on. To delete all the Load Path Labels use the Delete Load Path Labels tool on the Labels Toolbar or select an individual Load Path Label and right-click and Delete.

Solid Walls demand much less memory from Javelin than Wood Walls do. If you want to reduce your Javelin file size, especially if you are doing large jobs (typically 10,000sqft and larger), you may want to try using Solid Walls in lieu of Wood Walls.

Pic.1

In order to properly use Solid Walls in the place of Wood Walls check these settings prior to input.

Wall Weight: Enter Wood Wall weight (*7psf typical) (1)

Sill Plate> Material: Select the appropriate Sill Plate size that is specified for the wood walls on the job (Pic.3)

Wall Weight: Enter Wood Wall weight (*7psf typical) (Pic.1)

Sill Plate> Include: YES (Pic.2)

For Flush Wall Conditions, Top Mount hangers can be specified when the Sill Plate> Include setting is set to Yes. Selecting the proper Sill Plate depth will ensure that the correct hanger options will be available upon connector design (ie. 4x sill plate when 3 nails are needed).

If using the default Solid Wall schemes that come installed with Javelin, be aware that the Sill Plate Setting comes defaulted to NO. Adjustments may need to be made.

IMPORTANT: In order for floor and roof members correct required bearing length to be determined during design, the correct Sill Plate Size must be specified to support floor and roof members.

Capping Height for Beams

Ever need to specify a Beam that is not be the same depth as the Floor Container? You have probably noticed the Floor Decking will not find support from the Beam because it is unable to bear directly on the top of the Beam. Consequently, the Beam will also not get loaded correctly.

Pic.1

Out in the field a cap will be added to the top of the Beam to fill in this height difference. We can easily model this in Javelin by using the Capping Height setting in the Beams Property Grid.

Pic.2

To do this first, enter the difference of the Floor Container and Beam depths into the Capping Height field (Pic.1). Then turn on the Direct-Active Bearings symbol (Pic.2) to verify the Capping Height is correct. There should be one Direct Active Bearing shown in the center of the Beam (Pic.3).

Pic. 3Note: Capping Height will not be an actual visible object in Plan or 3D Views.

Save time with Total Lengths Material List

This could save you and your sales team a lot of time, making quoting / pricing faster and more reliable.

In addition to generating a detailed material list, did you know that Javelin can also add up the total length of each product?

The system takes care of the math

Save time and costly math errors

It can be added to your existing schemes

Use it for quoting or input into Point of Sale system

To add the Total Lengths Material List to complete job files:

Complete your drawing as you normally would with Material Lists.

Steps:

In Plan View Select > Job Properties

Expand Job Settings > Output: Layout Material List > General > Show Total Lengths = Yes

Click OK to close Job Properties, the new Material List will display on your layout automatically.

Note: If you create a new scheme or rename an existing scheme make sure to update your Template for new Javelin files.

Existing file: Open Job Properties > select Job Settings > select your scheme name (if the name has changed).

Setup your Schemes for future jobs

"Home" > Settings > Schemes Expand Job Settings > Output: Layout Material List > select scheme name > General > Show Total Lengths = Yes.

This Total Lengths Material List can also be printer on its own for your sales team to produce system type job quotes or used to input into point of sale system.

In Plan View Select > Text Annotation> Print Material List

Select the Total Lengths Material List in the plan (highlights green)

Right click mouse button when done selecting materials list desired in the report.

Select Print To method: Screen / Paper / CSV file.

Select desired Costing information for report.

Click OK to display ------>

Note: The Total Lengths Material List does not get added to the Grand Total of the report, but has its own Sub Total.