Trus Joist® Beam, Header, and Column Specifier’s Guide - W. Canada - TJ-9505 - April 2023

Oct 12, 2026

Specifier’s guide for Trus Joist® engineered lumber in Western Canada, covering beams, headers, and columns. Summarizes product benefits such as reliable straightness, reduced bowing/twisting/shrinking, predictable performance, and limited product warranty, and lists code applications referencing NBCC 2010/2015 and CSA O86. Provides featured product ranges for TimberStrand® LSL, Microllam® LVL, and Parallam® PSL, includes product storage cautions, and outlines general design assumptions plus starting design-property tables with factored resistances.

LanguageEnglish

CategoryPresentations

FormatPDF

Pages20

Reading Time7 min

AccessFree to download

General Assumptions

Design Properties

Floor and/or Snow Load Tables

TimberStrand® LSL

Microllam® LVL

Parallam® PSL

| | | | | \#TJ-9505 | SPECIFIER’S GUIDE | | --- | --- | --- | --- | --- | --- | | BEAMS, HEADERS, AND COLUMNS
Featuring Trus Joist® TimberStrand® LSL, Microllam® LVL, and Parallam® PSL | | WESTERN CANADA | | | | | • Uniform and Predictable
• Minimal Bowing, Twisting, and Shrinking
• Strong and Straight
• Limited Product Warranty | | | | | | The products in this guide are readily available through our nationwide network of distributors and dealers. For more information on other applications or other Trus Joist® products, contact your Weyerhaeuser representative. This guide is for use with NBCC 2010, NBCC 2015, CSA O86-09 and CSA O86-14. TABLE OF CONTENTS | General Assumptions | 3 | | --- | --- | | Design Properties | 4 | | Floor and/or Snow Load Tables | | | TimberStrand® LSL | 5 | | Microllam® LVL | 6–7 | | Parallam® PSL | 8–9 | | Why Choose Trus Joist® Beams, Columns, and Headers? Reliable performance
Consistent quality and dependable uniformity Flexible solutions for your beam and header needs Backed by a limited product warranty
Using advanced technology, Weyerhaeuser manufactures engineered lumber that is consistently straight and strong, and that resists bowing, twisting, and shrinking. That means less waste, easier installation, and higher design values for starters; plus fewer callbacks, shorter cycle times, more design flexibility, and lower overall installed cost in the end. Trus Joist® TimberStrand® LSL, Microllam® LVL, and Parallam® PSL are structural solutions you can count on—guaranteed. | | --- | | This guide features Trus Joist® engineered lumber in the following widths and depths:
TimberStrand® LSL
1.55E TimberStrand® LSL header and beam sizes:
Widths: 1¾" and 3½"
Depths: 9½", 117⁄8", 14", and 16"
Microllam® LVL
2.0E Microllam® LVL header and beam sizes:
Width: 1¾"
Depths: 5½", 7¼", 9¼", 9½", 11¼", 117⁄8", 14", 16", 18", and 20"
Parallam® PSL
2.2E Parallam® PSL header and beam sizes:
Widths: 3½", 5¼", and 7"
Depths: 9¼", 9½", 11¼", 117⁄8", 14", 16", and 19"
1.8E Parallam® PSL column and post sizes:
31⁄2" x 31⁄2" 31⁄2" x 51⁄4" 31⁄2" x 7" 51⁄4" x 51⁄4" 51⁄4" x 7" 7" x 7" | |
For deeper depth Parallam® PSL beams, see the Trus Joist® 2.2E Parallam® PSL Deep Beam Technical Resource Sheet, \#TJ-7501, or contact your Weyerhaeuser representative. | | | |
Grades shown are available in Western Canada; some sizes may not be available in your region. | | | PRODUCT STORAGE Protect product from sun and water CAUTION: Wrap is slippery when wet or icy Align stickers (2x3 or larger) directly over support blocks Use support blocks (6x6 or larger) at 10' on-centre to keep bundles out of mud and water Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 2 TJ-9505 | April 2023 Trus Joist® TimberStrand® Laminated Strand Lumber (LSL) • One-piece members reduce labor time • Every piece is straight and strong • Unique properties allow you to drill larger holes through 1.55E TimberStrand® LSL. See Allowable Holes on page 12. Code Evaluations: See CCMC 12627-R Trus Joist® Microllam® Laminated Veneer Lumber (LVL) • Can easily be built up on site to reduce heavy lifting • Offers reliable and economical solutions for beam and header applications • Manufacturing process minimizes many of the natural inconsistencies found in wood Code Evaluations: See CCMC O8675-R Trus Joist® Parallam® Parallel Strand Lumber (PSL) • Allows long spans for open floor plans without intermediate posts or columns • Has warm, unique grain that is perfect for applications with exposed beams • Provides ideal solutions for cantilever and multi-span applications • Solid sections save time on site assembly Code Evaluations: See CCMC 11161-R General Assumptions for Products Shown in this Guide • Specified strengths and factored resistances are based on Limit States Design per CSA O86 . • Lateral support

FAQs

What engineered lumber products are included for beams, headers, and columns?

The guide features Trus Joist® TimberStrand® LSL, Microllam® LVL, and Parallam® PSL, providing structural solutions for beam and header applications and column/post uses where specified.

Which building codes and standards does this guide reference?

It is for use with NBCC 2010 and NBCC 2015 and with CSA O86-09 and CSA O86-14.

What general assumptions affect design when using these products?

Factored strengths are based on Limit States Design per CSA O86; lateral support is required at bearing and along the span at 24 in. on-centre maximum, and no camber is used. Deflection and alignment limits are also specified for members depending on depth and length.

Oct 12, 2026

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