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        Welcome to Weyerhaeuser's new website!

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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

        Not available in all areas. Talk to a territory manager to check availability and learn more about Trus Joist Parallam Plus PSL:

        Homeowners please contact a dealer near you.


        More details about your need will help us serve you better


        Product Literature

        • var-1008 - ICC-ES SAVE Report No. VAR-1008
        • as-plplus - Parallam Plus Specification General Note
        • as-tjign - Trus Joist Product Specification General Notes
        • tj-1020 - Preservative Treatments Approved for Trus Joist Engineered Wood Products
        • tj-9020 - Specifier's Guide for Trus Joist Beams, Headers, and Columns - Pacific Coast and Northwest
        • tj-7102 - Specifier's Guide for Parallam Plus PSL
        • gc-004 - Green Approved Product: TimberStrand LSL, Parallam PSL, Microllam LVL
        • env-microllam-parallam - Product Environmental Profile - Microllam & Parallam
        • env-1000 - When Is The Best Time To Make A House Green?
        • 1504 - Questions and Answers About Mold
        • ENV-1002 - Terms and Tips for Environmentally Responsible Building
        • 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-4030 - Trus Joist Products: The Industry’s Choice for Multi-Family and Light Commercial
        • tb-603 - Achieving Drainage slope with Parallam? Plus PSL
        • tb-127 - Position on Preservative Treated Glued Laminated Timber Products
        • tb-310 - Use of Topical Coatings with Weyerhaeuser Engineered Wood Products
        • tb-217 - Trus Joist Coastal Construction Guide
        • tb-602 - Parallam Plus PSL and the International Building Code
        • tb-108 - Designing Indoor Pools
        • tb-315 - Preservative Wood Treatments of Weyerhaeuser Engineered Wood Products
        • TB-314 - Fire Retardant Coatings of Weyerhaeuser Engineered Wood Products
        • tb-128 - Moisture Protection for Wood-Framed Balconies, Decks and Elevated Walkways
        • tb-213 - Flood-Damage-Resistant Material Considerations
        • tb-316 - Forklift Recommendations for Trus Joist? Structural Composite Lumber
        • 1507 - Product Transportation, Handling and Storage
        • TJ-1512 - Best Practices for Product Storage & Handling
        • tj-1010 - Trus Joist Product Warranty Certificate
        • tj-7101 - Parallam Plus PSL Limited 30-Year Warranty
        • tj-1013 - Trus Joist No Red Tag Guarantee
        • tj-1010f - Trus Joist Product Warranty Certificate (French)