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Parallam® Plus PSL

Our highest load capacity

Parallam® Plus PSL is perfect for framing decks, retaining walls, carports, pool enclosures, among other structural framing applications where the wood comes in direct contact with the ground or moisture.


  • Engineered lumber components for long-term durability and performance
  • Treated to the core, eliminating field treatment when cut or drilled
  • Decay and insect-resistant with Wolmanized preservative protection
  • The ideal structural solution for most exterior applications
  • SFI-certified and NAHB-approved products that meet National Green Building Standard criteria

Talk to a territory manager to learn more about Trus Joist Parallam Plus PSL:

Homeowners please contact a dealer near you.

Product Literature

  • var-1008 - ICC-ES SAVE Report No. VAR-1008
  • tj-9020 - Specifier's Guide for Trus Joist Beams, Headers, and Columns - California
  • tj-7102 - Specifier's Guide for Parallam Plus PSL
  • tj-1020 - Preservative Treatments Approved for Trus Joist Engineered Wood Products
  • as-plplus - Parallam Plus Specification General Note
  • as-tjign - Trus Joist Product Specification General Notes
  • tj-1021 - Consumer Safety Information Sheet for Parallam Plus PSL
  • gc-004 - Green Approved Product: TimberStrand LSL, Parallam PSL, Microllam LVL
  • 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-microllam-parallam - Product Environmental Profile - Microllam & Parallam
  • tj-9001 - Installation Guide for Floor and Roof Framing with TJI 110, 210, 230, 360 and 560 Joists
  • tj-9001s - Guia de instalación para armazones de entrepisos y techos con viguetas TJI 110, 120, 230, 360 y 560
  • tj-7100 - Product Overview: Parallam Plus PSL for Exposed Framing Applications – Eastern Region
  • tj-7106 - Product Overview: Parallam Plus PSL for Exposed Framing Applications – Western Region
  • tj-4030 - Trus Joist Products: The Industry’s Choice for Multi-Family and Light Commercial
  • tb-603 - Achieving Drainage slope with Parallam® Plus PSL
  • tb-108 - Designing Indoor Pools
  • tb-213 - Flood Damage-Resistant Material Considerations
  • tb-602 - Parallam Plus PSL and the International Building Code
  • tb-217 - Trus Joist Coastal Construction Guide
  • tb-610 - New Design Values for Parallam® Plus PSL
  • tb-310 - Use of Topical Coatings with Weyerhaeuser Engineered Wood Products
  • 1507 - Product Transportation, Handling and Storage
  • tj-7101 - Parallam Plus PSL Limited 30-Year Warranty
  • tj-1013 - Trus Joist No Red Tag Guarantee
  • tj-1010 - Trus Joist Product Warranty Certificate