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TimberStrand® LSL Rim Board

Straight, strong and installs fast

TimberStrand® laminated strand lumber (LSL) is an engineered lumber that is consistently straight and true — characteristics that combine to create superior rim board material. TimberStrand Rim Board is dimensionally stable and excels at transferring vertical and lateral loads to the foundation. Sized to fit with TJI® joists, TimberStrand Rim Board is designed to provide critical performance where you need it most.


TimberStrand® LSL with Flak Jacket FRT Protection

Effective April 1, 2018, TimberStrand® LSL with Flak Jacket® Protection has been discontinued. Please contact your Trus Joist Territory Manager or Technical Support at 1-888-453-8358 for more information.

Product Literature

  • spec-id-39709 - Intertek TJI Fire Listings Weyerhaeuser - Rim Board, TJ Rim Board, TJI Rim Joist, and TimberStrand LSL
  • fl6527-r9 - State of Florida FL6527-R9
  • ccrr-0222c - Code Compliance Research Report CCRR-0222C
  • pfs-ch9d - Weyerhaeuser Fire Rated Assembly Listings
  • ruling-no05-19-143r - Ruling No. 05-19-143 (12627-R)
  • ccmc12627-r - Canadian CCMC ER No. 12627-R
  • ccmc12627-r-f - Canadian CCMC ER No. 12627-R
  • var-1008 - ICC-ES SAVE Report No. VAR-1008
  • esr-1387 - U.S and City of LA ICC-ES Report No. ESR-1387
  • 9010 - TimberStrand LSL Stair Stringers and SturdiStep Stair Treads Specifier’s Guide
  • tj-9505 - Specifier's Guide for Trus Joist Beams, Headers, and Columns - West Canada
  • tj-9003 - Specifier's Guide for Walls
  • tj-9020 - Specifier's Guide for Trus Joist Beams, Headers, and Columns - Pacific Coast and Northwest
  • TJ-1500 - Fire-rated Assemblies and Sprinkler Systems
  • tj-8000 - Specifier's Guide for Trus Joist Rim Board
  • tj-1020 - Preservative Treatments Approved for Trus Joist Engineered Wood Products
  • tj-8500 - TJ® Rim Board Guide for Canada
  • as-tjign - Trus Joist Product Specification General Notes
  • as-ts - Architectural Specifications: TimberStrand
  • gc-008 - Green Approved Product: StrandGuard TimberStrand LSL
  • gc-004 - Green Approved Product: TimberStrand LSL, Parallam PSL, Microllam LVL
  • 1504 - Questions and Answers About Mold
  • env-1000 - When Is The Best Time To Make A House Green?
  • env-timberstrand-osb - Product Environmental Profile - Timberstrand & OSB
  • ENV-1002 - Terms and Tips for Environmentally Responsible Building
  • tj-9001p - Installation Guide for TJI 110, 210, 230, 360 and 560 Joists (in Punjabi language)
  • 9030 - Floor Framing Standards Guide: A Framer’s Guide to the Installation Process
  • tj-9510 - Installation Guide for Floor and Roof Framing with TJI s31, s33 and s47 Joists – East Canada
  • tj-9001 - Installation Guide for Floor and Roof Framing with TJI 110, 210, 230, 360 and 560 Joists
  • 5036 - USP Connector Guide for Trus Joist Products
  • tj-9510f - Guide du constructeur pour les solives TJI s31, s33 s47 – Est du Canada
  • csg-tj17 - Simpson Connector Guide for Trus Joist Products
  • csg-tjcan12 - Simpson Connector Guide for Trus Joist Products
  • USP994-131 - USP Connector Guide for Trus Joist products (Canada)
  • tj-9001s - Guia de instalación para armazones de entrepisos y techos con viguetas TJI 110, 120, 230, 360 y 560
  • tj-8508 - TimberStrand LSL with Flak Jacket FRT
  • osb-4025 - SturdiStep Stair Treads
  • tj-4030 - Trus Joist Products: The Industry’s Choice for Multi-Family and Light Commercial
  • tb-206 - Fastener Spacing for Trus Joist Products
  • tb-304 - Deck Ledger Attachment to Rim Board
  • tb-219 - Large Concentrated Loads on Rim Board
  • tb-250 - Large Concentrated Loads on Rim Board
  • tb-305 - Resawing Microllam LVL, Parallam PSL and TimberStrand LSL Products
  • tb-112 - Moisture Effects on Weyerhaeuser Engineered Wood Products
  • tb-703 - Stair Stringer Tables for 1-3/4″ 1.55E TimberStrand LSL
  • tb-754f - Tableaux pour les murs en TimberStrand LSL dans la construction de bâtiments de hauteur moyenne
  • tb-750 - TimberStrand LSL Rim Board Header Table
  • tb-754 - TimberStrand Wall Tables for Mid-Rise Construction
  • tb-310 - Use of Topical Coatings with Weyerhaeuser Engineered Wood Products
  • tb-105 - Garage Floor Design Guidelines
  • tb-223 - TimberStrand® LSL with Flak Jacket® FRT Protection Frequently Asked Questions
  • tb-150 - 1-1/8″ TJ Rim Board – Header and Cantilever Applications
  • tb-222 - TimberStrand® LSL with Flak Jacket® FRT Protection for Rim Board Applications Spanning Openings
  • tb-315 - Preservative Wood Treatments of Trus Joist® Engineered Wood Products
  • TB-314 - Fire Retardant Coatings of Weyerhaeuser Engineered Wood Products
  • 1507 - Product Transportation, Handling and Storage
  • osb-1008 - Weyerhaeuser 1 1⁄8″ Rim Board Warranty
  • tj-1002 - Trus Joist TJ Rim Board Warranty
  • tj-1008 - Trus Joist TimberStrand LSL Warranty
  • tj-1005 - Trus Joist StrandGuard TimberStrand LSL Warranty
  • tj-1010 - Trus Joist Product Warranty Certificate
  • tj-1013 - Trus Joist No Red Tag Guarantee