Welcome to Weyerhaeuser's new website!

You appear to be using an older browser. This website is best viewed using the latest versions of Internet Explorer, Chrome, Safari, and Firefox. If you proceed without upgrading or switching browsers, you may not experience optimal navigation or page functionality. Thank you for your interest in Weyerhaeuser and we hope you enjoy your visit.

Update my browser now

×

Trus Joist® TJI® joists are a key part of making a high-performance floor. The dimensional stability of TJI joists help them resist warping, twisting and shrinking that can lead to squeaky floors. TJI joists are lightweight and come in long lengths, which makes them faster and easier to install than traditional framing, and saves you both time and money.


Flak Jacket® Fire Protection

A one-hour fire-rated assembly with a single layer of gypsum and no mineral wool.

Eastern Canada

Trus Joist® TJI® s31, s33 and s47 joists for use in Eastern Canada.


Software

Weyerhaeuser offers an array of software packages to help you specify individual framing members, create cut lists, manage inventories — even to help you design a complete structural frame. Lean more about software to help get the job done.

TJ-Pro™ Rating System

When you build with TJI joists, you not only get the best product, you also get unsurpassed customer service, design expertise and engineering support. Take advantage of our industry-leading software with the TJ-Pro™ Rating System. TJ-Pro helps you design and build a floor system with Trus Joist components that work together to meet, or exceed, customer expectations.

Product Literature

  • tj-4000 - TJI® Joist Specifier’s Guide
  • tj-4510f - Guide du rédacteur de devis pour les solives TJI s31, s33 et s47 – Est du Canada Canadian
  • 1500 - Fire-rated Assemblies and Sprinkler Systems
  • tj-4500 - Specifier's Guide for TJI 110, 210, 230, 360, and 560 Joists - West Canada
  • tj-1020 - Preservative Treatments Approved for Trus Joist Engineered Wood Products
  • tb-807 - Roof Span Tables for Residential TJI Joists (Supplement)
  • tj-4035 - Sound Performance of Trus Joist TJI Joist Fire-Rated Floor Assemblies
  • tj-4510 - Specifier’s Guide for TJI s31, s33, and s47 Joists – East Canada
  • 1502 - Using Weyerhaeuser Products in Conventional Construction
  • csg-tjcan12 - Simpson Connector Guide for Trus Joist Products
  • csg-tj14 - Simpson Connector Guide for Trus Joist Products
  • 5036 - USP Connector Guide for Trus Joist Products
  • sr-111 - Hazards of Deviating from Framing Specs
  • as-tji - Architectural Specifications: TJI Joists
  • as-tjign - Trus Joist Product Specification General Notes
  • gc-003 - Green Approved Product: TJI Joist
  • 1505 - Questions and Answers About Adhesives and Formaldehyde Emissions
  • 1504 - Questions and Answers About Mold
  • env-1000 - When Is The Best Time To Make A House Green?
  • env-trus-joist-i-joist - Product Environmental Profile - Trus Joist I-Joists
  • 9030 - Floor Framing Standards Guide: A Framer’s Guide to the Installation Process
  • tj-9001 - Installation Guide for Floor and Roof Framing with TJI 110, 210, 230, 360 and 560 Joists
  • csg-tjcan12 - Simpson Connector Guide for Trus Joist Products
  • csg-tj14 - Simpson Connector Guide for Trus Joist Products
  • 5036 - USP Connector Guide for Trus Joist Products
  • tj-9510 - Installation Guide for Floor and Roof Framing with TJI s31, s33 and s47 Joists – East Canada
  • tj-9510f - Guide du constructeur pour les solives TJI s31, s33 s47 – Est du Canada
  • tj-9006 - Installation Guide for Deep Depth TJI 360, 560 and 560D Joists
  • tj-9001p - Installation Guide for TJI 110, 210, 230, 360 and 560 Joists (in Punjabi language)
  • tj-4006 - Product Overview: TJI Joists
  • svc-4005 - Product Overview: TJ-Pro Ratings
  • tj-4032 - Product Overview: TJI Joists with Flak Jacket Protection
  • tj-4030 - Trus Joist Products: The Industry’s Choice for Multi-Family and Light Commercial
  • svc-4006 - Trus Joist TJ-Pro Rating Q&A
  • 1505 - Questions and Answers About Adhesives and Formaldehyde Emissions
  • tb-312 - Approved Preservative Treaters
  • tb-203 - Attaching Fire Sprinkler Components to Trus Joist Products
  • tb-808 - Attachment Connections to TJI Joist Bottom Flange
  • tb-155f - Calcul de diaphragmes horizontaux avec solives Trus Joist TJI
  • tb-820 - Connecting 3-ply TJI Joists
  • tb-155 - Horizontal Diaphragm Design with Trus Joist® TJI® Joists
  • tb-156 - Weyerhaeuser Edge GoldTM Floor Panel Deflection Comparison of Two Trus Joist® TJI® Floor Joist Systems
  • tb-158 - Engineering Requirements for I-Joists, Structural Composite Lumber, and Plated Trusses
  • tb-120 - Engineer's Seal Requirements for I-Joists, Structural Composite Lumber and Plated Trusses
  • tb-206f - Espacement des attaches pour les produits en bois d’ingénierie Weyerhaeuser
  • tb-206 - Fastener Spacing for Trus Joist Products
  • tb-818 - Flange Notches in TJI Joists
  • tb-105 - Garage Floor Design Guidelines
  • tb-816 - Header-Off Table for TJI Joists
  • tb-817 - Holes Too Close to End Bearing
  • tb-104 - Information About Floor Performance
  • tb-112 - Moisture Effects on Weyerhaeuser Engineered Wood Products
  • tb-811 - Multiple/Continuous Span Chart for TJI Joists
  • tb-826 - Parallel joist blocking with end blocks
  • tb-853 - Proprietary Bridging and TJI Joists
  • tb-929 - Proprietary Sheathing Fasteners
  • tb-807 - Roof Span Tables for Residential TJI Joists (Supplement)
  • tb-825 - Solar Panel Attachment to Trus Joist TJI Joist Flanges
  • tb-216 - Stacking Gypsum Board on Floor Framing During Construction
  • tb-814 - TJI Joist Bonus Room Tables (Roof LL, 20 psf / 115%)
  • tb-813 - TJI Joist Bonus Room Tables (Roof LL, 20 psf / 125%)
  • tb-815 - TJI Joist Bonus Room Tables (Roof LL, 30 psf / 115%)
  • tb-805 - TJI Joists in Rafter Cut Applications
  • tb-828 - TJI® Joists with Flak Jacket® Protection Frequently Asked Questions
  • tb-824 - Trus Joist TJI Joists in Ceiling Applications
  • tb-854 - Vent Holes for 16″ TJI 230 Joists
  • tb-827 - Wall tension tie connectors for TJI joists
  • tb-125 - Wind Uplift Design for Trus Joist TJI Roof Joists
  • 1502 - Using Weyerhaeuser Products in Conventional Construction
  • tb-216 - Stacking Gypsum Board on Floor Framing During Construction
  • 1507 - Product Transportation, Handling and Storage
  • tj-1013 - Trus Joist No Red Tag Guarantee
  • tj-1010 - Trus Joist Product Warranty Certificate
  • tj-1006 - Trus Joist TJI Joist Warranty