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#TJ-9505 SPECIFIER’S GUIDE
HEADERS,
BEAMS, AND
COLUMNS
Featuring Trus Joist® TimberStrand® LSL,
Microllam® LVL, and Parallam® PSL
• Uniform and Predictable
• Minimal Bowing, Twisting, and Shrinking
• Strong and Straight
• Limited Product Warranty
Woodbywy.com
1.888.453.8358
WESTERN
CANADA
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
The products in this guide are readily
available through our n
­ ationwide
network of distributors and dealers. For
more information on other applications
or other Trus Joist products, contact
your Weyerhaeuser representative.
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
Beam Details 10
Window and Door Header Details 10–11
Nailing on Narrow Face 11
Allowable Holes
12
Bearing Length Requirements
12
Tapered End Cuts 13
Multiple-Member Connections 14–16
Header Design Example Problem 16
Parallam® PSL Columns 17
Product Warranty 20
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: 5
½", 7¼", 9¼", 9½", 11¼", 117⁄8", 14", 16", 18¾", and 20"
Parallam® PSL
2.0E Parallam® PSL header and beam sizes:
Widths: 1¾", 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 2x3 (or larger) stickers
directly over support blocks
®
®
®
Use 6x6 (or larger) support blocks 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 | June 2014
Structural Solutions
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.
•Beams that are 1¾" x 16" and deeper require multiple plies.
•No camber.
•Lateral support is required at bearing and along the span at
24" on-centre, maximum.
•Beams and columns must remain straight to within 5L2⁄4608 (in.) of
true alignment. L is the unrestrained length of the member in feet.
•Bearing lengths are based on each product’s bearing resistance for
applicable grade and orientation.
For applications not covered in this guide, contact your Weyerhaeuser
representative.
•All members 7¼" and less in depth are restricted to a maximum
deflection of 5⁄16".
See pages 14–16 for multiple-member beam connections.
TimberStrand® LSL, Microllam® LVL, and untreated
Parallam® PSL are intended for dry-use applications
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 3
TJ-9505 | June 2014
dESIGN PROPERTIES
Factored Resistances(1) (Standard Term)
Grade Width
Design Property
Factored Moment Resistance (ft-lbs)
Factored Shear Resistance (lbs)
Moment of Inertia (in. 4)
Weight (plf)
Factored Moment Resistance (ft-lbs)
Factored Shear Resistance (lbs)
Moment of Inertia (in. 4)
Weight (plf)
1¾"
1.55E
3½"
2.0E
5½"
Factored Moment Resistance (ft-lbs)
Factored Shear Resistance (lbs)
Moment of Inertia (in. 4)
Weight (plf)
1¾"
3,535
3,060
24
2.8
7¼"
9¼"
9½"
TimberStrand ® LSL
8,665
5,735
125
5.2
17,325
11,470
250
10.4
Microllam ® LVL
5,915
4,035
56
3.7
9,315
5,150
115
4.7
11¼"
Depth
117⁄8"
14"
16"
13,260
7,170
244
6.5
26,525
14,340
488
13.0
18,155
8,455
400
7.7
36,310
16,905
800
15.3
23,425
9,660
597
8.8
46,850
19,320
1,195
17.5
18¾"
9,790
5,285
125
4.8
13,420 14,845 20,175 25,875 34,775
6,260 6,610 7,790 8,905 10,435
208
244
400
597
961
5.7
6.1
7.1
8.2
9.6
10,860
5,385
125
5.2
21,720
10,775
250
10.4
32,580
16,160
375
15.6
43,440
21,545
500
20.8
14,945
6,380
208
6.2
29,890
12,760
415
12.3
44,840
19,135
623
18.5
59,785
25,515
831
24.6
19"
20"
39,220
11,130
1,167
10.2
Beam
Orientation
Column
Orientation
Parallam ® PSL
Factored Moment Resistance (ft-lbs)
Factored Shear Resistance (lbs)
Moment of Inertia (in. 4)
Weight (plf)
Factored Moment Resistance (ft-lbs)
Factored Shear Resistance (lbs)
Moment of Inertia (in. 4)
Weight (plf)
Factored Moment Resistance (ft-lbs)
Factored Shear Resistance (lbs)
Moment of Inertia (in. 4)
Weight (plf)
Factored Moment Resistance (ft-lbs)
Factored Shear Resistance (lbs)
Moment of Inertia (in. 4)
Weight (plf)
1¾"
3½"
2.2E
5¼"
7"
10,325
5,245
115
5.1
20,655
10,490
231
10.1
30,980
15,735
346
15.2
41,305
20,980
462
20.2
16,555
6,735
244
6.5
33,105
13,465
488
13.0
49,660
20,200
733
19.5
66,215
26,935
977
26.0
22,590
7,940
400
7.7
45,180
15,875
800
15.3
67,775
23,815
1,201
23.0
90,365
31,750
1,601
30.6
29,075
9,070
597
8.8
58,145
18,145
1,195
17.5
87,220
27,215
1,792
26.3
116,290
36,290
2,389
35.0
40,220
10,775
1,000
10.4
80,445
21,545
2,001
20.8
120,665
32,320
3,001
31.2
160,890
43,090
4,001
41.6
Plank
Orientation
(1) For product in beam orientation, unless otherwise noted.
Specified Strengths(1) and Moduli of Elasticity (Standard Term)
Grade
G
Modulus
Orientation Shear
of Elasticity
(psi)
E
Modulus of
Elasticity
(psi)
fb
Flexural
Stress (2)
(psi)
1.55E
Beam
96,875
1.55 x 106
4,295
2.0E
Beam
125,000
2.0 x 106
4,805
1.8E
2.2E
Column
Beam
112,500
137,500
1.8 x 106
2.2 x 106
4,435(8)
5,360
ft
Tension
Stress (3)
(psi)
TimberStrand ® LSL
1,975(7)
Microllam ® LVL
2,870
Parallam ® PSL
3,245
3,750
(1) To obtain factored resistances, apply the appropriate formulae from CSA O86 to the ­specified
strengths shown.
(2) For 12" depth. For other depths, multiply fb by the appropriate factor as follows:
– For
– For Parallam®
fcll
Compression
Parallel to Grain
(psi)
fv
Horizontal Shear
Parallel to Grain
(psi)
SG
Equivalent
Specific
Gravity (5)
1,455
3,270
575(7)
0.50(6)
1,365
4,005
530
0.50
775(8)
1,365
3,990
4,630(9)
355(8)
540
0.50
0.50
(3) ft has been adjusted to reflect the volume effects for most standard applications.
(4) fc⊥ must not be increased for duration of load.
(5) For lateral connection design only.
(6) Specific gravity of 0.58 may be used for bolts installed perpendicular to face and loaded
­perpendicular to grain.
(7) Value accounts for large hole capabilities. See Allowable Holes on page 12.
(8) Value shown is for plank orientation.
(9) For column applications, use a specified strength of 800 psi.
[]
LVL, multiply by [ ]
PSL, multiply by [ ]
12 0.092
d
12 0.136
d
12 0.111
d
– For TimberStrand® LSL, multiply by
Microllam®
fc⊥
Compression
Perpendicular to Grain (4)
(psi)
TimberStrand® LSL, Microllam® LVL, and untreated Parallam® PSL
are intended for dry-use applications
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 4
TJ-9505 | June 2014
Floor and/or snow Load Tables
How to Use This Table
General Notes
1.Calculate the factored and unfactored total load (TL) (neglect beam weight)
and the unfactored live load (LL) on the beam or header in pounds per linear
foot (plf).
Table is based on:
–Uniform loads (beam weight considered).
– More restrictive of simple or continuous span.
–Deflection criteria of L/360 live load (LL) and L/240 total load (TL).
For a live load deflection limit of L/480, multiply Unfactored Resistance (LL)
by 0.75. For a total load limit of L /180 multiply Unfactored Resistance (TL) by
1.33. The resulting loads must not exceed the Total Factored Resistance shown.
■
2.Select appropriate Span (centre-to-centre of bearing).
■
3.Scan horizontally to find the proper width and a depth that has a capacity that
meets or exceeds actual loads.
4.Review bearing length requirements to ensure adequacy.
Also General Assumptions on page 3.
1.55E TimberStrand® LSL: Floor and /or Snow—Standard Term (PLF)
Span 4'
5'
6'
8'
9'-6"
10'
12'
14'
16'-6"
18'-6"
20'
Condition
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
9½"
*
*
3,351
3.3/8.2
1,658
*
2,452
3.0/7.5
1,049
*
1,919
2.8/7.1
487
726
1,076
2.1/5.3
303
449
761
1.8/4.5
262
388
687
1.7/4.3
156
228
475
1.5/3.5
100
144
347
1.5/3.5
62
87
248
1.5/3.5
44
61
196
1.5/3.5
1¾" Width
117⁄8"
*
*
4,574
4.5/11.3
*
*
3,349
4.1/10.3
*
*
2,589
3.8/9.6
887
*
1,650
3.3/8.1
561
*
1,167
2.7/6.9
487
725
1,053
2.6/6.5
294
434
729
2.2/5.4
190
278
533
1.9/4.7
118
171
382
1.6/3.9
85
121
302
1.5/3.5
68
95
257
1.5/3.5
14"
*
*
4,574
4.5/11.3
*
*
3,657
4.5/11.3
*
*
3,046
4.5/11.3
1,353
*
2,195
4.3/10.8
870
*
1,600
3.8/9.4
760
*
1,443
3.6/9.0
464
689
999
3.0/7.5
303
446
731
2.6/6.4
190
277
524
2.2/5.4
137
198
415
1.9/4.8
109
156
354
1.8/4.5
9½"
*
*
6,702
3.3/8.2
3,317
*
4,903
3.0/7.5
2,098
*
3,837
2.8/7.1
975
1,452
2,153
2.1/5.3
605
897
1,523
1.8/4.5
524
775
1,373
1.7/4.3
311
457
950
1.5/3.5
199
289
694
1.5/3.5
123
175
496
1.5/3.5
88
122
392
1.5/3.5
70
95
334
1.5/3.5
3½" Width
117⁄8"
14"
*
*
*
*
9,145
9,145
4.5/11.3 4.5/11.3
*
*
*
*
6,699
7,311
4.1/10.3 4.5/11.3
*
*
*
*
5,178
6,089
3.8/9.6 4.5/11.3
1,774
2,706
*
*
3,299
4,391
3.3/8.1 4.3/10.8
1,121
1,740
*
*
2,335
3,200
2.7/6.9 3.8/9.4
975
1,520
1,449
*
2,106
2,886
2.6/6.5 3.6/8.9
588
929
868
1,378
1,457
1,998
2.2/5.4 3.0/7.4
380
605
556
892
1,066
1,463
1.9/4.7 2.5/6.4
237
380
342
555
763
1,048
1.6/3.9 2.2/5.4
170
274
242
395
604
830
1.5/3.5 1.9/4.8
135
218
190
312
514
707
1.5/3.5 1.8/4.5
16"
*
*
9,145
4.5/11.3
*
*
7,311
4.5/11.3
*
*
6,089
4.5/11.3
*
*
4,561
4.5/11.3
2,456
*
3,838
4.5/11.3
2,155
*
3,645
4.5/11.3
1,335
*
2,581
3.9/9.6
877
1,299
1,890
3.3/8.3
555
815
1,355
2.8/7.0
401
584
1,073
2.5/6.3
321
464
915
2.3/5.8
9½"
*
*
10,053
3.3/8.2
4,975
*
7,355
3.0/7.5
3,146
*
5,756
2.8/7.1
1,462
2,178
3,229
2.1/5.3
908
1,346
2,284
1.8/4.5
786
1,163
2,060
1.7/4.3
467
685
1,424
1.5/3.5
299
433
1,041
1.5/3.5
185
262
744
1.5/3.5
132
183
588
1.5/3.5
105
142
500
1.5/3.5
5¼" Width (2- or 3-ply)
117⁄8"
14"
16"
*
*
*
*
*
*
13,717 13,717 13,717
4.5/11.3 4.5/11.3 4.5/11.3
*
*
*
*
*
*
10,048 10,967 10,967
4.1/10.3 4.5/11.3 4.5/11.3
*
*
*
*
*
*
7,767
9,134
9,134
3.8/9.6 4.5/11.3 4.5/11.3
2,660
4,058
*
*
*
*
4,949
6,586
6,842
3.3/8.1 4.3/10.8 4.5/11.3
1,682
2,611
3,685
*
*
*
3,502
4,799
5,757
2.7/6.9 3.8/9.4 4.5/11.3
1,462
2,280
3,232
2,174
*
*
3,158
4,329
5,467
2.6/6.5 3.6/8.9 4.5/11.3
881
1,393
2,002
1,303
2,067
*
2,186
2,997
3,871
2.2/5.4 3.0/7.4 3.9/9.6
569
908
1,316
835
1,339
1,948
1,600
2,194
2,835
1.9/4.7 2.5/6.4 3.3/8.3
355
570
833
513
832
1,223
1,145
1,572
2,032
1.6/3.9 2.2/5.4 2.8/7.0
255
410
602
362
593
877
906
1,244
1,610
1.5/3.5 1.9/4.8 2.5/6.3
203
327
481
285
468
696
771
1,061
1,373
1.5/3.5 1.8/4.5 2.3/5.8
* Indicates Total Factored Resistance value controls.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 5
TJ-9505 | June 2014
Floor and/or snow Load Tables
How to Use This Table
1.Calculate the factored and unfactored total load (TL) (neglect beam weight)
and the unfactored live load (LL) on the beam or header in pounds per linear
foot (plf).
2.Select appropriate Span (centre-to-centre of bearing).
3.Scan horizontally to find the proper width and a depth that has a capacity that
meets or exceeds actual loads.
4.Review bearing length requirements to ensure adequacy.
Also see General Notes on page 7.
2.0E Microllam® LVL: Floor and /or Snow—Standard Term (PLF)
Span
Condition
Unfactored Resistance (LL)
Unfactored Resistance (TL)
6'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
8'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
9'-6"
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
10'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
12'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
14'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
16'-6"
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
18'-6"
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
20'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
24'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
28'
Total Factored Resistance
Min. End/Int. Bearing (in.)
5½"
305
455
782
1.5/3.5
134
154
438
1.5/3.5
80
77
310
1.5/3.5
65
62
279
1.5/3.5
32
29
193
1.5/3.5
7¼"
660
*
1,278
2/5
296
343
735
1.5/3.9
178
175
520
1.5/3.5
146
142
469
1.5/3.5
72
68
324
1.5/3.5
39
35
237
1.5/3.5
9¼"
*
*
1,722
2.7/6.8
585
*
1,159
2.4/6.1
362
539
820
2.1/5.1
313
465
739
2/4.9
186
274
512
1.6/4.1
119
174
374
1.5/3.5
74
106
268
1.5/3.5
53
74
212
1.5/3.5
42
58
180
1.5/3.5
1¾" Width
9½"
*
*
1,781
2.8/7
629
*
1,218
2.6/6.4
390
581
862
2.2/5.4
338
502
777
2/5.1
201
297
538
1.7/4.3
129
188
394
1.5/3.7
80
115
282
1.5/3.5
57
81
223
1.5/3.5
45
63
190
1.5/3.5
11¼"
*
*
2,219
3.5/8.7
992
*
1,534
3.2/8.1
624
*
1,182
3/7.4
542
*
1,066
2.8/7
326
483
738
2.3/5.9
210
309
541
2/5
130
190
387
1.7/4.3
93
134
307
1.5/3.8
74
106
261
1.5/3.5
43
59
179
1.5/3.5
117⁄8"
14"
5½"
611
*
*
911
*
*
2,386
2,859
1,564
3.8/9.4 4.5/11.3 1.5/3.5
*
267
*
308
*
*
1,640
2,024
877
3.4/8.6 4.3/10.6 1.5/3.5
723
*
160
154
*
*
1,308
1,624
620
3.3/8.2 4.1/10.1 1.5/3.5
629
981
131
125
*
*
1,180
1,524
559
3.1/7.8
4/10
1.5/3.5
379
599
64
563
58
*
817
1,112
386
2.6/6.5 3.5/8.8 1.5/3.5
245
390
35
361
*
29
598
814
282
2.2/5.5
3/7.5
1.5/3.5
153
245
18
223
361
12
429
584
201
1.9/4.7 2.6/6.4 1.5/3.5
109
176
158
258
339
463
1.7/4.2 2.3/5.7
87
141
125
204
289
395
1.6/3.9 2.1/5.3
51
83
70
117
199
271
1.5/3.5 1.8/4.4
53
72
197
1.5/3.8
7¼"
1,319
*
2,556
2/5
591
686
1,470
1.5/3.9
357
349
1,040
1.5/3.5
292
285
937
1.5/3.5
143
136
648
1.5/3.5
78
71
474
1.5/3.5
41
33
338
1.5/3.5
26
19
267
1.5/3.5
19
12
227
1.5/3.5
3½" Width (2-ply)
9¼"
9½"
11¼"
*
*
*
*
*
*
3,444
3,562
4,438
2.7/6.8
2.8/7 3.5/8.7
1,169
1,258
1,985
*
*
*
2,318
2,436
3,068
2.4/6.1 2.6/6.4 3.2/8.1
724
781
1248
1,077
1,162
*
1,640
1,724
2,365
2.1/5.1 2.2/5.4
3/7.4
627
676
1,084
931
1,004
*
1,479
1,555
2,133
2/4.9
2/5.1
2.8/7
372
402
651
549
593
965
1,023
1,076
1,477
1.6/4.1 1.7/4.3 2.3/5.9
238
257
420
348
376
618
749
787
1,081
1.5/3.5 1.5/3.7
2/5
147
159
261
212
229
380
536
563
774
1.5/3.5 1.5/3.5 1.7/4.3
105
114
187
148
161
269
424
446
613
1.5/3.5 1.5/3.5 1.5/3.8
84
90
149
116
126
212
361
380
522
1.5/3.5 1.5/3.5 1.5/3.5
49
53
87
64
69
119
247
260
358
1.5/3.5 1.5/3.5 1.5/3.5
31
33
55
37
40
71
178
188
260
1.5/3.5 1.5/3.5 1.5/3.5
* Indicates Total Factored Resistance value controls.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 6
TJ-9505 | June 2014
117⁄8"
14"
*
*
*
*
4,773
5,713
3.8/9.4 4.5/11.3
*
*
*
*
3,280
4,047
3.4/8.6 4.3/10.6
1,447
*
*
*
2,616
3,248
3.3/8.2 4.1/10.1
1,258
1,961
*
*
2,360
3,047
3.1/7.8
4/10
758
1,198
1,125
*
1,634
2,224
2.6/6.5 3.5/8.8
490
781
723
*
1,197
1,629
2.2/5.5
3/7.5
305
490
446
721
857
1,168
1.9/4.7 2.6/6.4
219
353
316
515
679
925
1.7/4.2 2.3/5.7
174
282
249
408
579
789
1.6/3.9 2.1/5.3
102
166
141
234
397
543
1.5/3.5 1.8/4.4
65
105
85
144
288
394
1.5/3.5 1.5/3.8
Floor and/or snow Load Tables
General Notes
■
■
Table is based on:
–Uniform loads (beam weight considered).
– More restrictive of simple or continuous span.
– Deflection criteria of L/360 live load (LL) and L/240 total load (TL).
For a live load deflection limit of L/480, multiply Unfactored Resistance (LL)
by 0.75. For a total load limit of L /180 multiply Unfactored Resistance (TL) by
1.33. The resulting loads must not exceed the Total Factored Resistance shown.
Also see How to Use This Table on page 6 and General Assumptions on page 3.
2.0E Microllam® LVL: Floor and /or Snow—Standard Term (PLF) continued
3½" Width (2-ply)
16"
18¾"
20"
Unfactored Resistance (LL)
*
*
*
Unfactored Resistance (TL)
*
*
*
6'
Total Factored Resistance
5,713
5,713
5,713
Min. End/Int. Bearing (in.)
4.5/11.3 4.5/11.3 4.5/11.3
Unfactored Resistance (LL)
*
*
*
Unfactored Resistance (TL)
*
*
*
8'
Total Factored Resistance
4,279
4,279
4,279
Min. End/Int. Bearing (in.)
4.5/11.3 4.5/11.3 4.5/11.3
Unfactored Resistance (LL)
*
*
*
Unfactored Resistance (TL)
*
*
*
9'-6"
Total Factored Resistance
3,600
3,600
3,600
Min. End/Int. Bearing (in.)
4.5/11.3 4.5/11.3 4.5/11.3
Unfactored Resistance (LL)
*
*
*
Unfactored Resistance (TL)
*
*
*
10'
Total Factored Resistance
3,419
3,419
3,419
Min. End/Int. Bearing (in.)
4.5/11.3 4.5/11.3 4.5/11.3
Unfactored Resistance (LL)
1,722
*
*
Unfactored Resistance (TL)
*
*
*
12'
Total Factored Resistance
2,846
2,846
2,846
Min. End/Int. Bearing (in.)
4.5/11.3 4.5/11.3 4.5/11.3
Unfactored Resistance (LL)
1,132
*
*
Unfactored Resistance (TL)
*
*
*
14'
Total Factored Resistance
2,092
2,437
2,437
Min. End/Int. Bearing (in.)
3.9/9.7 4.5/11.3 4.5/11.3
Unfactored Resistance (LL)
716
1,115
1,331
Unfactored Resistance (TL)
*
*
*
16'-6"
Total Factored Resistance
1,500
2,020
2,064
Min. End/Int. Bearing (in.)
3.3/8.2 4.4/11 4.5/11.3
Unfactored Resistance (LL)
518
811
971
Unfactored Resistance (TL)
760
*
*
18'-6"
Total Factored Resistance
1,189
1,602
1,808
Min. End/Int. Bearing (in.)
2.9/7.3 3.9/9.8 4.4/11.1
Unfactored Resistance (LL)
414
651
781
Unfactored Resistance (TL)
605
*
*
20'
Total Factored Resistance
1,015
1,367
1,543
Min. End/Int. Bearing (in.)
2.7/6.8 3.6/9.1 4.1/10.3
Unfactored Resistance (LL)
244
387
466
Unfactored Resistance (TL)
350
561
678
24'
Total Factored Resistance
698
942
1,064
Min. End/Int. Bearing (in.)
2.3/5.6
3/7.6
3.4/8.6
Unfactored Resistance (LL)
156
248
299
Unfactored Resistance (TL)
217
352
428
28'
Total Factored Resistance
508
686
775
Min. End/Int. Bearing (in.)
1.9/4.8 2.6/6.5 2.9/7.3
Span
Condition
5½"
916
1,366
2,346
1.5/3.5
401
462
1,315
1.5/3.5
240
231
930
1.5/3.5
196
187
838
1.5/3.5
95
87
579
1.5/3.5
52
43
422
1.5/3.5
27
19
301
1.5/3.5
17
9
237
1.5/3.5
13
4
202
1.5/3.5
7¼"
1,979
*
3,834
2/5
887
1,028
2,205
1.5/3.9
535
524
1,560
1.5/3.5
439
427
1,406
1.5/3.5
215
204
972
1.5/3.5
117
106
711
1.5/3.5
61
50
508
1.5/3.5
39
28
401
1.5/3.5
29
17
341
1.5/3.5
14
3
233
1.5/3.5
9¼"
*
*
5,166
2.7/6.8
1,754
*
3,476
2.4/6.1
1,087
1,616
2,460
2.1/5.1
940
1,396
2,218
2/4.9
558
823
1,535
1.6/4.1
357
522
1,123
1.5/3.5
221
317
804
1.5/3.5
158
223
636
1.5/3.5
125
174
541
1.5/3.5
73
95
371
1.5/3.5
46
55
268
1.5/3.5
9½"
*
*
5,343
2.8/7
1,887
*
3,654
2.6/6.4
1,171
1,742
2,586
2.2/5.4
1,014
1,506
2,332
2/5.1
603
890
1,614
1.7/4.3
386
565
1,181
1.5/3.7
239
344
845
1.5/3.5
171
242
668
1.5/3.5
136
189
569
1.5/3.5
79
104
390
1.5/3.5
50
60
282
1.5/3.5
5¼" Width (3-ply)
11¼"
117⁄8"
14"
16"
18¾"
20"
*
*
*
*
*
*
*
*
*
*
*
*
6,656
7,159
8,569
8,569
8,569
8,569
3.5/8.7 3.8/9.4 4.5/11.3 4.5/11.3 4.5/11.3 4.5/11.3
2,977
*
*
*
*
*
*
*
*
*
*
*
4,602
4,921
6,071
6,419
6,419
6,419
3.2/8.1 3.4/8.6 4.3/10.6 4.5/11.3 4.5/11.3 4.5/11.3
1,873
2,170
*
*
*
*
*
*
*
*
*
*
3,547
3,924
4,872
5,401
5,401
5,401
3/7.4
3.3/8.2 4.1/10.1 4.5/11.3 4.5/11.3 4.5/11.3
1,626
1,887
2,942
*
*
*
*
*
*
*
*
*
3,199
3,540
4,571
5,129
5,129
5,129
2.8/7
3.1/7.8
4/10 4.5/11.3 4.5/11.3 4.5/11.3
977
1,137
1,798
2,583
*
*
1,448
1,688
*
*
*
*
2,215
2,451
3,336
4,269
4,269
4,269
2.3/5.9 2.6/6.5 3.5/8.8 4.5/11.3 4.5/11.3 4.5/11.3
629
735
1,171
1,698
*
*
927
1,084
*
*
*
*
1,622
1,795
2,443
3,138
3,655
3,655
2/5
2.2/5.5
3/7.5
3.9/9.7 4.5/11.3 4.5/11.3
391
458
735
1,074
1,672
1,996
570
669
1,082
*
*
*
1,162
1,286
1,752
2,250
3,030
3,096
1.7/4.3 1.9/4.7 2.6/6.4 3.3/8.2 4.4/11 4.5/11.3
280
328
529
777
1,216
1,456
403
474
773
1,140
*
*
920
1,018
1,388
1,784
2,403
2,712
1.5/3.8 1.7/4.2 2.3/5.7 2.9/7.3 3.9/9.8 4.4/11.1
223
262
423
621
977
1,171
318
374
612
907
*
*
784
868
1,184
1,522
2,051
2,315
1.5/3.5 1.6/3.9 2.1/5.3 2.7/6.8 3.6/9.1 4.1/10.3
130
153
248
367
580
698
178
211
351
526
842
1,017
538
596
814
1,048
1,413
1,596
1.5/3.5 1.5/3.5 1.8/4.4 2.3/5.6
3/7.6
3.4/8.6
83
97
158
234
371
448
107
127
215
326
529
641
389
432
591
761
1,029
1,162
1.5/3.5 1.5/3.5 1.5/3.8 1.9/4.8 2.6/6.5 2.9/7.3
* Indicates Total Factored Resistance value controls.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 7
TJ-9505 | June 2014
Floor and/or snow Load Tables
How to Use This Table
1.Calculate the factored and unfactored total load (TL) (neglect beam weight)
and the unfactored live load (LL) on the beam or header in pounds per linear
foot (plf).
2.Select appropriate Span (centre-to-centre of bearing).
3.Scan horizontally to find the proper width and a depth that has a capacity that
meets or exceeds actual loads.
4.Review bearing length requirements to ensure adequacy.
Also see General Notes on page 9.
2.2E Parallam® PSL: Floor and /or Snow—Standard Term (PLF)
Span
Condition
Unfactored Resistance (LL)
Unfactored Resistance (TL)
8'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
9'-6"
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
10'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
12'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
14'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
16'-6"
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
18'-6"
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
20'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
24'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
28'
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
32'
Total Factored Resistance
Min. End/Int. Bearing (in.)
91 ⁄4"
643
*
1,234
2.6/6.5
398
593
909
2.3/5.7
345
512
820
2.2/5.4
205
302
567
1.8/4.5
131
191
415
1.5/3.9
81
116
297
1.5/3.5
58
82
235
1.5/3.5
46
64
200
1.5/3.5
91 ⁄ 2 "
692
*
1,273
2.7/6.7
429
639
956
2.4/6
372
552
862
2.3/5.7
221
326
597
1.9/4.7
142
207
437
1.6/4.1
88
126
313
1.5/3.5
63
89
247
1.5/3.5
50
69
211
1.5/3.5
13/4" Width
111 ⁄4"
*
*
1,562
3.3/8.2
687
*
1,268
3.2/7.9
596
*
1,188
3.1/7.8
358
531
823
2.6/6.5
231
340
602
2.2/5.6
144
209
431
1.9/4.7
103
148
342
1.7/4.2
82
117
291
1.6/3.9
48
66
200
1.5/3.5
117⁄ 8"
14"
91 ⁄4"
*
*
1,286
*
*
*
1,671
2,061
2,468
3.5/8.8 4.3/10.8 2.6/6.5
796
*
797
*
*
1,185
1,353
1,654
1,818
3.4/8.5 4.1/10.3 2.3/5.7
692
*
689
*
*
1,024
1,272
1,552
1,640
3.3/8.4 4.1/10.2 2.2/5.4
417
659
409
619
*
604
912
1,244
1,135
2.9/7.2 3.9/9.8 1.8/4.5
269
429
262
398
*
383
668
913
830
2.5/6.2 3.4/8.4 1.5/3.9
168
270
162
245
397
233
478
654
594
2.1/5.2 2.9/7.2 1.5/3.5
120
194
116
174
284
163
379
518
470
1.9/4.7 2.6/6.4 1.5/3.5
96
155
92
137
225
128
323
442
400
1.7/4.3 2.4/5.9 1.5/3.5
56
91
54
78
129
70
222
304
274
1.5/3.6
2/4.9
1.5/3.5
58
34
79
41
221
198
1.7/4.2 1.5/3.5
91 ⁄ 2 "
1,384
*
2,547
2.7/6.7
859
1,278
1,912
2.4/6
743
1,105
1,725
2.3/5.7
442
653
1,194
1.9/4.7
283
414
874
1.6/4.1
175
252
625
1.5/3.5
125
177
495
1.5/3.5
99
139
421
1.5/3.5
58
77
289
1.5/3.5
37
45
209
1.5/3.5
111 ⁄4"
*
*
3,125
3.3/8.2
1,373
*
2,536
3.2/7.9
1,193
*
2,376
3.1/7.8
716
1,062
1,645
2.6/6.5
461
680
1,205
2.2/5.6
287
418
863
1.9/4.7
206
296
683
1.7/4.2
164
233
582
1.6/3.9
96
131
400
1.5/3.5
61
79
290
1.5/3.5
41
49
218
1.5/3.5
31 ⁄ 2" Width
117⁄ 8"
14"
*
*
*
*
3,342
4,122
3.5/8.8 4.3/10.8
1,591
*
*
*
2,705
3,309
3.4/8.5 4.1/10.3
1,384
*
*
*
2,544
3,104
3.3/8.4 4.1/10.2
834
1,318
1,238
*
1,823
2,488
2.9/7.2 3.9/9.8
539
859
795
*
1,335
1,825
2.5/6.2 3.4/8.4
336
539
491
794
957
1,309
2.1/5.2 2.9/7.2
241
388
348
567
758
1,037
1.9/4.7 2.6/6.4
192
310
275
449
646
885
1.7/4.3 2.4/5.9
112
182
155
258
444
608
1.5/3.6
2/4.9
71
116
94
158
322
442
1.5/3.5 1.7/4.2
48
78
59
102
242
334
1.5/3.5 1.5/3.7
16"
*
*
4,279
4.5/11.3
*
*
3,600
4.5/11.3
*
*
3,419
4.5/11.3
1,894
*
2,846
4.5/11.3
1,245
*
2,351
4.3/10.9
788
*
1,687
3.7/9.2
570
837
1,337
3.3/8.2
456
666
1,141
3/7.6
269
386
786
2.5/6.3
171
240
571
2.2/5.4
116
156
432
1.9/4.8
* Indicates Total Factored Resistance value controls.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 8
TJ-9505 | June 2014
19"
*
*
4,279
4.5/11.3
*
*
3,600
4.5/11.3
*
*
3,419
4.5/11.3
*
*
2,846
4.5/11.3
*
*
2,436
4.5/11.3
1,272
*
2,064
4.5/11.3
926
*
1,839
4.5/11.3
743
*
1,583
4.2/10.5
442
642
1,091
3.5/8.8
283
404
795
3/7.5
192
267
602
2.6/6.6
Floor and/or snow Load Tables
General Notes
■
■
Table is based on:
–Uniform loads (beam weight considered).
– More restrictive of simple or continuous span.
– Deflection criteria of L/360 live load (LL) and L/240 total load (TL).
For a live load deflection limit of L/480, multiply Unfactored Resistance (LL)
by 0.75. For a total load limit of L/180 multiply Unfactored Resistance (TL) by
1.33. The resulting loads must not exceed the Total Factored Resistance shown.
Also see How to Use This Table on page 8 and General Assumptions on page 3.
2.2E Parallam® PSL: Floor and /or Snow—Standard Term (PLF) continued
Span
8'
9'-6"
10'
12'
14'
16'-6"
18'-6"
20'
24'
28'
32'
Condition
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
91 ⁄4"
1,929
*
3,701
2.6/6.5
1,195
1,778
2,727
2.3/5.7
1,034
1,536
2,459
2.2/5.4
614
906
1,702
1.8/4.5
393
574
1,245
1.5/3.9
243
349
891
1.5/3.5
174
245
705
1.5/3.5
138
192
601
1.5/3.5
80
105
411
1.5/3.5
51
61
297
1.5/3.5
34
36
223
1.5/3.5
91 ⁄ 2 "
2,076
*
3,820
2.7/6.7
1,288
1,917
2,868
2.4/6
1,115
1,657
2,587
2.3/5.7
663
979
1,790
1.9/4.7
425
621
1,310
1.6/4.1
263
379
938
1.5/3.5
188
266
742
1.5/3.5
149
208
632
1.5/3.5
87
115
433
1.5/3.5
55
67
313
1.5/3.5
37
40
235
1.5/3.5
111 ⁄4"
*
*
4,687
3.3/8.2
2,060
*
3,804
3.2/7.9
1,789
*
3,564
3.1/7.8
1,074
1,593
2,468
2.6/6.5
692
1,020
1,807
2.2/5.6
431
627
1,294
1.9/4.7
308
444
1,025
1.7/4.2
245
350
874
1.6/3.9
144
197
600
1.5/3.5
91
118
434
1.5/3.5
61
73
327
1.5/3.5
51/4" Width
117⁄ 8"
*
*
5,012
3.5/8.8
2,387
*
4,058
3.4/8.5
2,076
*
3,816
3.3/8.4
1,251
1,857
2,735
2.9/7.2
808
1,193
2,003
2.5/6.2
504
736
1,435
2.1/5.2
361
522
1,136
1.9/4.7
288
412
969
1.7/4.3
168
233
665
1.5/3.6
107
141
482
1.5/3.5
72
88
364
1.5/3.5
14"
*
*
6,184
4.3/10.8
*
*
4,963
4.1/10.3
*
*
4,656
4.1/10.2
1,977
*
3,731
3.9/9.8
1,288
*
2,738
3.4/8.4
809
1,190
1,963
2.9/7.2
582
851
1,555
2.6/6.4
465
674
1,327
2.4/5.9
273
387
913
2/4.9
174
237
663
1.7/4.2
117
153
501
1.5/3.7
16"
*
*
6,418
4.5/11.3
*
*
5,400
4.5/11.3
*
*
5,129
4.5/11.3
2,841
*
4,269
4.5/11.3
1,868
*
3,527
4.3/10.9
1,182
*
2,530
3.7/9.2
854
1,255
2,006
3.3/8.2
683
999
1,712
3/7.6
403
579
1,179
2.5/6.3
257
359
857
2.2/5.4
174
234
649
1.9/4.8
19"
*
*
6,418
4.5/11.3
*
*
5400
4.5/11.3
*
*
5,129
4.5/11.3
*
*
4,269
4.5/11.3
*
*
3,654
4.5/11.3
1,907
*
3,096
4.5/11.3
1,388
*
2,758
4.5/11.3
1,115
*
2,374
4.2/10.5
663
964
1,637
3.5/8.8
425
606
1,192
3/7.5
288
400
904
2.6/6.6
91 ⁄4"
2,572
*
4,935
2.6/6.5
1,594
2,371
3,636
2.3/5.7
1,379
2,048
3,279
2.2/5.4
819
1,208
2,269
1.8/4.5
524
766
1,661
1.5/3.9
324
466
1,188
1.5/3.5
231
327
940
1.5/3.5
184
256
801
1.5/3.5
107
140
548
1.5/3.5
68
81
396
1.5/3.5
46
48
297
1.5/3.5
91 ⁄ 2 "
2,767
*
5,094
2.7/6.7
1,718
2,556
3,825
2.4/6
1,487
2,210
3,449
2.3/5.7
884
1,306
2,387
1.9/4.7
566
829
1,747
1.6/4.1
350
505
1,250
1.5/3.5
250
355
989
1.5/3.5
199
278
843
1.5/3.5
116
153
577
1.5/3.5
73
89
417
1.5/3.5
49
53
313
1.5/3.5
111 ⁄4"
*
*
6,250
3.3/8.2
2,747
*
5,072
3.2/7.9
2,385
*
4,752
3.1/7.8
1,432
2,124
3,291
2.6/6.5
923
1,360
2,409
2.2/5.6
574
837
1,726
1.9/4.7
411
592
1,367
1.7/4.2
327
466
1,165
1.6/3.9
191
262
800
1.5/3.5
121
157
579
1.5/3.5
82
98
436
1.5/3.5
7" Width
117⁄ 8"
*
*
6,683
3.5/8.8
3,183
*
5,411
3.4/8.5
2,767
*
5,087
3.3/8.4
1,668
2,476
3,646
2.9/7.2
1,078
1,590
2,670
2.5/6.2
672
981
1,913
2.1/5.2
482
697
1,515
1.9/4.7
384
549
1,292
1.7/4.3
224
311
887
1.5/3.6
142
187
643
1.5/3.5
96
118
485
1.5/3.5
* Indicates Total Factored Resistance value controls.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 9
TJ-9505 | June 2014
14"
*
*
8,245
4.3/10.8
*
*
6,617
4.1/10.3
*
*
6,208
4.1/10.2
2,636
*
4,975
3.9/9.8
1,718
*
3,650
3.4/8.4
1,079
1,587
2,617
2.9/7.2
777
1,134
2,074
2.6/6.4
620
899
1,769
2.4/5.9
364
516
1,217
2/4.9
231
317
884
1.7/4.2
156
203
668
1.5/3.7
16"
*
*
8,558
4.5/11.3
*
*
7,200
4.5/11.3
*
*
6,838
4.5/11.3
3,788
*
5,691
4.5/11.3
2,491
*
4,703
4.3/10.9
1,576
*
3,373
3.7/9.2
1,139
1,674
2,675
3.3/8.2
911
1,332
2,282
3/7.6
538
772
1,571
2.5/6.3
343
479
1,143
2.2/5.4
231
312
865
1.9/4.8
19"
*
*
8,558
4.5/11.3
*
*
7,200
4.5/11.3
*
*
6,838
4.5/11.3
*
*
5691
4.5/11.3
*
*
4,872
4.5/11.3
2,543
*
4,128
4.5/11.3
1,851
*
3,677
4.5/11.3
1,487
*
3,166
4.2/10.5
884
1,285
2,183
3.5/8.8
566
808
1,590
3/7.5
384
534
1,205
2.6/6.6
BEAM DETAILS
Bearing at Wall
Beam to Beam Connection
Bearing for Door or
Window Header
11⁄8" TJ® Rim Board or
1¼" TimberStrand® LSL
blocking for lateral support
Strap per code if top plate is
not continuous over header
Strap per
code if top
plate is not
continuous
over column
L1
Column
Top mount
hanger
L2
Bearing at Concrete Wall
Face mount
hanger
L3
Bearing at Column
Beam to Column Lateral Brace
TJI® joist
Floor beam
Strap
Steel column
L4
Protect untreated wood from
direct contact with concrete
L5
Verify beam bearing length on page 12 and
column factored resistance on page 17
L14 Suggested lateral bracing detail for beams when
required. Verify beam bearing length on page 12.
WINDOW AND DOOR HEADER DETAILS
2x4 Wall Framing
Full Depth Header
Low Header
High Header
Header
Header
2x_ nailer*
Header
L8
L7
L9
*Double nailer may be required depending
upon the opening size and window type
2x6 Wall Framing
Headers not matching wall thickness may be installed flush to the inside or outside of the wall depending upon sheathing and trim attachment requirements
Low Header
High Header
Double top plate
2x6 wall framing
L11
3½"-wide
header
2x_ framing
at opening
3½"-wide
header
L12
2x_ nailer*
*Double nailer may be required depending upon the opening size and window type
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 10
TJ-9505 | June 2014
Window and Door Header Details
Dropped Header with Full Lateral Bracing
Framing above must be sheathed to provide
lateral stability to the top of the beam
Main structural header. See pages
14–16 for connecting multiple plies.
One 8d (0.113" x 21/2") nail each side of joist or blocking.
Blocking is required if joist framing is parallel to beam.
Joist spacing must be 24" on-centre or less.
Low header
Nail continuous king studs to the end of the beam using:
– Four 10d (0.131" x 3") nails for beams 117⁄8" deep or less
– Six 10d (0.131" x 3") nails for beams 18" deep or less
– Ten 10d (0.131" x 3") nails for beams greater than 18" deep
L15
Fasten 2x_ plate to low header with 10d (0.131" x 3")
nails at 8" on-centre, staggered
Continuous king stud
Dropped Header with Acceptable Lateral Bracing
4'-0" maximum height cripple wall.
Wall studs at 24" on-centre, maximum.
One 8d (0.113" x 2½") nail each side of joist or blocking.
Blocking is required if joist framing is parallel to beam.
Joist spacing must be 24" on-centre or less.
Fasten 2x_ plate to header below with 10d (0.131" x 3")
nails at 8" on-centre, staggered
Sheathing strength axis
See pages 14–16 for connecting multiple plies
Nail continuous king studs to the end of the beam using:
– Four 10d (0.131" x 3") nails for beams 117⁄8" deep or less
– Six 10d (0.131" x 3") nails for beams 16" deep or less
L16
Rated wall sheathing (7⁄16" nominal) continuous from bottom of
beam to top of wall. Fasten sheathing with 8d (0.113" x 2½") nails
at 6" on-centre at panel edges and 12" on-centre in panel field.
Continuous king stud
When framed as shown above, the following dropped headers are
­considered fully braced under uniform-load, simple-span conditions:
Single-ply:
– 1¾" wide headers, 117⁄8" deep or less
– 3½" wide headers, 16" deep or less, with a maximum span of 18'-6"
Multiple-ply:
– Headers up to four 1¾" plies, 117⁄8" deep or less
– Headers up to four 1¾" x 14" plies, with a maximum span of 8'-6"
NAILING ON NARROW FACE
Nails Installed on the Narrow Face
Nail Size
8d (0.131" x 2½") or
10d (0.128" x 3")
10d (0.148" x 3") or
12d (0.148" x 3¼")
16d (0.162" x 3½")
■
Closest On-Centre Spacing Per Row
3½"
1¾"
Microllam ® LVL
TimberStrand ® LSL TimberStrand ® LSL
Parallam ® PSL
3"
3"
3"
3"
4"
3"
4"
4"
6"
3½"
8"
6"
If more than one row of nails is used, the rows must be offset at least ½" and staggered.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 11
TJ-9505 | June 2014
ALLOWABLE HOLES
1.55E TimberStrand® LSL Headers and Beams
General Notes
■
2 x diameter of the
largest hole (minimum)
1⁄3
Allowed hole zone
depth
Allowed hole zone suitable for headers and beams
with uniform and/or concentrated loads
anywhere along member.
■
Round holes only.
■
No holes in headers or beams in plank orientation.
1.55E TimberStrand® LSL
8"
Header or Beam
Depth
9½"
117⁄8"
14"–16"
8"
■
Microllam® LVL and Parallam® PSL Headers and Beams
See illustration for allowed hole zone.
General Notes
■
Microllam® LVL and
Parallam® PSL hole zone
2 x diameter of the
largest hole (minimum)
1⁄ 3
depth
Allowed hole zone suitable for headers and beams
with uniform loads only.
■
Round holes only.
■
No holes in cantilevers.
■
No holes in headers or beams in plank orientation.
Microllam® LVL and
Parallam® PSL
Microllam® LVL and
Parallam® PSL
allowed hole zone
middle 1⁄3 span
Header or Beam
Depth
5½"
7¼"–20"
■
Larger holes in Trus Joist ® structural
composite lumber may be possible;
refer to Forte ® or Javelin ® software.
Maximum Round
Hole Size
3"
35⁄8"
45⁄8"
Maximum Round
Hole Size
1¾"
2"
See illustration for allowed hole zone.
DO NOT cut, notch, or drill holes in
headers or beams except as indicated
in the illustrations and tables
BEARING LENGTH REQUIREMENTS
Factored
Reaction
(lbs)
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
22,000
24,000
26,000
28,000
30,000
32,000
34,000
1.55E TimberStrand ® LSL
Beam Orientation
Width
1¾"
3½"
5¼"
3"
1½"
1½"
4"
2"
1½"
5"
21⁄2"
1¾"
6"
3"
2"
7"
3½"
2½"
8"
4"
2¾"
4½"
3"
5"
3½"
5½"
3¾"
6"
4"
6½"
4½"
7"
4¾"
7½"
5"
8"
5¼"
5¾"
2.0E Microllam ® LVL
Beam Orientation
Width
1¾"
3½"
5¼"
3¼"
1¾"
1½"
4¼"
2¼"
1½"
5¼"
2¾"
1¾"
6½"
3¼"
2¼"
7½"
3¾"
2½"
4¼"
3"
4¾"
3¼"
5¼"
3½"
6"
4"
6½"
4¼"
7"
4¾"
7½"
5"
8"
5¼"
5¾"
6"
2.2E Parallam ® PSL
Beam Orientation
Width
3½"
5¼"
7"
1¾"
1½"
1½"
2¼"
1½"
1½"
2¾"
1¾"
1½"
3¼"
2¼"
1¾"
3¾"
2½"
2"
4¼"
3"
2¼"
4¾"
3¼"
2½"
5¼"
3½"
2¾"
6"
4"
3"
6½"
4¼"
3¼"
7"
4¾"
3½"
7½"
5"
3¾"
8"
5¼"
4"
5¾"
4¼"
6"
4½"
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 12
General Notes
■
■
■
■
Minimum bearing length: 11⁄2" at ends, 31⁄2" at
intermediate ­supports.
Bearing across full beam width required.
Interpolation between reaction loads is permitted
for determining bearing lengths.
Bearing lengths based on the following factored
bearing resistances:
– 1.55E TimberStrand ® LSL: 1,165 psi.
– 2.0E Microllam ® LVL: 1,090 psi.
–2.2E Parallam ® PSL: 1,090 psi.
TJ-9505 | June 2014
Tapered End Cuts
Factored Reactions for 3½"(1) TimberStrand® LSL
Headers and Beams (lbs)
Bearing
3½"
Wood Plate(2)
5¼"
Wood Plate (2)
3½"
Column(3)
Beam Depth
9½"–117⁄8"
14"
16"
9½"
117⁄8"–14"
16"
9½"
117⁄8"
14"
16"
4½"
7,595
5"
7,595
7,595
8,775
8,775
9,530
9,530
8,115
8,115
8,870
8,870
8,870
Outside Heel Height D1
5½"
6"
6½"
7"
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
10,285 11,035 11,395 11,395
10,285 11,035 11,395 11,395
10,285 11,035 11,395 11,395
9,620 10,375 11,130 11,470
9,620 10,375 11,130 11,885
9,620 10,375 11,130 11,885
10,375 11,130 11,885
Minimum
3:12 slope
7½"
7,595
7,595
7,595
11,395
11,395
11,395
11,470
12,640
12,640
12,640
8"
7,595
7,595
7,595
11,395
11,395
11,395
11,470
13,395
13,395
13,395
Sloped
end cut
Beam
depth
D1
(1) For 1¾" and 5¼" beams, multiply by 0.5 and 1.5, respectively.
(2) Bearing lengths are based on factored bearing resistance of 615 psi.
(3) Bearing lengths are based on factored bearing resistance of 1,165 psi.
Tapered end cut detailed above
is not allowed with TJI® joists
Factored Reactions for 3½"(1) Microllam® LVL and Parallam® PSL
Headers and Beams (lbs)
Bearing
3½"
Wood
Plate (2)
5¼"
Wood
Plate (2)
3½"
Column (3)
Beam Depth
7¼"
9¼"
9½"
11¼"
117⁄8"
14"
16"
18"
18¾"–19"
20"
7¼"
9¼"
9½"
11¼"
117⁄8"
14"
16"
18"
18¾"–19"
20"
7¼"
9¼"
9½"
11¼"
117⁄8"
14"
16"
18"
18¾"–19"
20"
4½"
7,480
7,480
7,480
7,480
7,480
8,070
8,085
8,085
8,085
8,085
8,085
7,480
7,480
7,480
7,480
7,480
5"
7,595
7,595
7,595
7,595
7,595
7,595
5½"
7,595
7,595
7,595
7,595
7,595
7,595
8,070
8,780
8,780
8,780
8,780
8,780
8,070
9,480
9,480
9,480
9,480
9,480
9,480
8,070
8,175
8,175
8,175
8,175
8,175
8,070
8,870
8,870
8,870
8,870
8,870
Outside Heel Height D1
6"
6½"
7"
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
10,175
10,175
10,175
10,175
10,175
10,175
10,175
8,070
9,565
9,565
9,565
9,565
9,565
9,565
10,295
10,575
10,870
10,870
10,870
10,870
10,870
10,870
10,260
10,260
10,260
10,260
10,260
10,260
10,260
7½"
8"
10"
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
7,595
10,295
10,575
11,395
11,395
11,395
11,395
11,395
11,395
11,395
10,295
10,575
11,395
11,395
11,395
11,395
11,395
11,395
11,395
10,575
11,395
11,395
11,395
11,395
11,395
11,395
11,395
11,395
11,395
11,395
11,395
11,395
11,395
11,395
10,295
10,575
10,955
10,955
10,955
10,955
10,955
10,955
10,295
10,575
11,650
11,650
11,650
11,650
11,650
11,650
11,650
10,295
10,575
12,345
12,345
12,345
12,345
12,345
12,345
12,345
12,520
13,215
13,375
13,375
13,375
13,375
13,375
Wood Plate Connection
Sloped
end cut
Beam
depth
D1
Wood plate
Column Connection
Sloped
end cut
Beam
depth
D1
Column
(1) For 13⁄4", 51⁄4", and 7" beams, multiply by 0.5, 1.5, and 2.0, respectively.
(2) Bearing lengths based on a factored bearing resistance of 620 psi.
(3) Bearing lengths based on factored bearing resistance of 1,090 psi for Microllam® LVL and Parallam® PSL.
General Notes
DO NOT overhang seat cuts on
beams beyond inside face of
support member
­ No increase for duration of load is permitted above standard term.
■
■
■
No holes or concentrated load within tapered cut.
Table considers only downward loading. Contact your Weyerhaeuser representative for assistance with uplift
­loading or other conditions.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 13
TJ-9505 | June 2014
MULTIPLE-MEMBER CONNECTIONs FOR SIDE-LOADED BEAMS
L17
Factored Uniform Load—Maximum Factored Uniform Load Applied to Either Outside Member (PLF)
Fastener Pattern
Assembly A
Fastener Type
10d (0.128" x 3")
Nail(1)
½" A307
Through Bolt (2)(3)
SDS (3)
USP WS (3)
TrussLOK-EWP™(3)
SDW22(3)(4)
Assembly B
Assembly C
Assembly D
Assembly E
2"
2"
2"
2"
Fastener
13⁄4"
13⁄4"
13⁄4" 31⁄2"
Number On-Centre
Location of Rows Spacing 3½" wide, 2-ply 5¼" wide, 3-ply 5¼" wide, 2-ply
2(5)
12"
575
430
430
As shown
3
12"
865
650
650
24"
780
585
880
–
2
19.2"
975
730
1,095
16"
1,170
880
1,315
Screw Length
3½"
3½"
3½"
24"
870
655
655
As shown
2
19.2"
1,090
815
815
16"
1,305
980
980
24"
905
680
680
As shown
2
19.2"
1,130
850
850
16"
1,355
1,015
1,015
Screw Length
33 ⁄8"
5"
33 ⁄8"
24"
585
550
440
One side
2
19.2"
735
685
550
only
16"
880
825
660
24"
680
625
585
One side
2
19.2"
850
780
730
only
16"
1,020
935
880
Assembly F
2"
2"
13⁄4" 31⁄2" 13⁄4"
31⁄2"
7" wide, 3-ply
385
575
780
975
1,170
3½"
580
725
870
605
755
905
6¾"
490
610
730
555
690
830
7" wide, 2-ply
7" wide, 4-ply
1,560
1,950
2,340
6"
2,040
2,550
3,060
520
650
780
6"
680
850
1,020
765(6)
960(6)
1,150(6)
6¾"
490
610
730
555
690
830
13⁄4"
6¾"
730
915
1,100
1,140
1,425
1,710
(1) Nailed connection values may be doubled for 6" on-centre or tripled for 4" on-centre nail spacing.
(2) Washers required. Bolt holes to be 9⁄16" maximum.
(3) Factored resistance for 24" on-centre bolted or screwed connection values may be doubled for 12" on-centre spacing.
(4) When loading the head side of a SDW22 screw, assemblies A, B, D, and F can be increased by 15%.
(5) For beams up to 14" deep, maximum.
(6) Assembly F is not recommended for TimberStrand® LSL or Parallam® PSL.
General Notes for Side-Loaded Beam Tables
■
■
■
■
■
■
■
■
Uniform Load Design Example
Connections are based on Limit States Design per CSA O86.
Use specific gravity of 0.5 when designing lateral connections.
Values listed are for standard term loading.
When fasteners are required on both sides, stagger fasteners on the second
side so they fall halfway between fasteners on the first side.
Verify adequacy of beam in allowable load tables on pages 5–9.
7" wide beams should be side-loaded only when loads are applied to both sides
of the members (to minimize rotation).
Minimum end distance for bolts and screws is 6".
Beams wider than 7" require special consideration by the design professional
of record.
435 PLF
625 PLF
First, check load tables on pages 5–9 to verify that three pieces can carry the
total factored load of 1,060 plf with proper live load deflection criteria. Total
factored load = (1.25 x dead load) + (1.5 x live load). Maximum f­ actored load
applied to either outside member is 625 plf. For an assembly of three 1¾"
plies (Assembly B), two rows of 10d (0.128" x 3") nails at 12" on-centre is
good for only 430 plf. Therefore, use three rows of 10d (0.128" x 3") nails at
12" on-centre (good for 650 plf).
Alternatives: Two rows of 1⁄2" bolts or 5" TrussLOK-EWP™ screws at 19.2"
on-centre.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 14
TJ-9505 | June 2014
MULTIPLE-MEMBER CONNECTIONs for side-Loaded Beams
L18
Factored Point Load—Maximum Factored Point Load Applied to Either Outside Member (lbs)
Fastener Pattern
Assembly A
Fastener Type
10d (0.128" x 3")
Nail
½" A307
Through Bolt (1)
SDS
USP WS
TrussLOK-EWP™
SDW22(2)
Number of
Fasteners
Location
per Side
6
12
As shown
18
24
4
–
6
8
Screw Length
4
As shown
6
8
4
6
As shown
8
Screw Length
4
One side only
6
8
4
One side only
6
8
Assembly B
Assembly C
Assembly D
Assembly E
2"
2"
2"
2"
13⁄4"
13⁄4" 31⁄2"
13⁄4"
3½" wide, 2-ply
1,730
3,455
5,185
6,910
3,120
4,680
6,240
3½"
3,480
5,220
6,960
3,615
5,425
7,230
33 ⁄8"
2,345
3,515
4,690
2,720
4,080
5,440
5¼" wide, 3-ply 5¼" wide, 2-ply
1,295
1,295
2,590
2,590
3,890
3,890
5,185
5,185
2,340
3,510
3,510
5,265
4,680
7,020
3½"
3½"
2,610
2,610
3,915
3,915
5,220
5,220
2,710
2,710
4,070
4,070
5,425
5,425
5"
33 ⁄8"
2,195
1,760
3,295
2,635
4,390
3,515
2,490
2,340
3,735
3,510
4,980
4,680
Assembly F
2"
2"
13⁄4" 31⁄2" 13⁄4"
31⁄2"
7" wide, 3-ply
7" wide, 2-ply
2,305
3,455
4,610
3,120
4,680
6,240
3½"
2,320
3,480
4,640
2,410
3,615
4,820
6¾"
1,950
2,930
3,905
2,215
3,320
4,425
13⁄4"
7" wide, 4-ply
6,240
9,360
12,480
6"
8,160
12,240
16,320
2,080
3,120
4,160
6"
2,720
4,080
5,440
3,065(3)
4,600(3)
6,135(3)
6¾"
1,950
2,930
3,905
2,215
3,320
4,425
6¾"
2,930
4,390
5,855
4,560
6,840
9,120
(1)Washers required. Bolt holes to be 9⁄16" maximum.
(2)When loading the head side of a SDW22 screw, assemblies A, B, D, and F can be increased by 15%.
(3) Assembly F is not recommended for TimberStrand® LSL or Parallam® PSL.
3,000 lbs
Point Load Design Example
First, verify that three plies of 1¾" x 14" beam material is capable of
supporting the factored 3,000 lb point load, as well as all other loads applied.
The factored 3,000 lb point load is being transferred to the beam with a face
mount hanger. For an assembly of three 1¾" plies, six 5"-long TrussLOK-EWP™
screws are good for 3,295 lbs with a face mount hanger.
14"
Point Load Connector Spacing
4- or 6-Bolt or Screw Connection
½" A307 through bolt, or SDS, USP WS,
TrussLOK-EWP™, or SDW screw, typical
8-Bolt or Screw Connection
½" A307 through bolt, or SDS, USP WS,
TrussLOK-EWP™, or SDW screw, typical
Nail Connection
10d (0.128" x 3" nails, typical.
Stagger to prevent splitting.
2" spacing, typical
1½" minimum
2" minimum at top
and bottom, typical
1½"
minimum
Equal
spacing
½ beam depth
L19 Minimum beam depth is 9½"
for ½" diameter bolts
2" minimum
2" minimum
8"–10"
2" minimum
2" minimum
L20 Minimum beam depth is 117⁄8 "
for ½" diameter bolts
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 15
1½" minimum
spacing, typical
L21 There must be an equal number of nails
on each side of the connection
TJ-9505 | June 2014
MULTIPLE-MEMBER CONNECTIONs FOR TOP-LOADED BEAMS
Fastener Installation Requirements
Piece
Width
Number
of Plies
2
1¾"
3
Type (1)
10d nails
12d–16d nails
Screws
10d nails
12d–16d nails
Min. Length
3"
3¼"
33∕8" or 3½"
3"
3¼"
33∕8" or 3½"
5"
3"
3¼"
5" or 6"
6¾"
5" or 6"
6¾"
8"
Screws
4
10d nails(3)
12d–16d nails(3)
Screws
3½"
2
Screws
½" bolts
Metric to Imperial Conversions
Fastener
# Rows
3(2)
2(2)
2
3(2)
2(2)
O.C. Spacing
Location
12"
One side
24"
One side
12"
Both sides
2
24"
3(2)
2(2)
12"
2
24"
2
24"
Metric Unit
1 kN
1N
1m
1 mm
1 kg
1N•m
1N•m
1 mm 4
1 Pa
1 kPa
Both sides
One side
One side
(per ply)
Both sides
One side
Both sides
One side
–
Imperial to Metric Conversions
Imperial Unit
1 kip
1 lb
1 ft
1 in.
1 lb mass
1 lb • ft
1 lb • in.
1 in. 4
1 lb/ft 2
1 lb/in. 2
(1)10d nails are 0.128" diameter; 12d–16d nails are 0.148"–0.162" diameter; screws are SDS, USP WS, TrussLOK-EWP™ or SDW.
(2)An additional row of nails is required with depths of 14" or greater.
(3)When connecting 4-ply members, nail each ply to the other and offset nail rows by 2" from the rows in ply below.
hen fasteners are required on both sides, stagger
W
fasteners on the second side so they fall halfway
between fasteners on the first side.
Load must be applied evenly
across entire beam width.
Otherwise, use connections
for side-loaded beams
L6
Imperial Conversion
0.2248 kip
0.2248 lb
3.281 ft
0.0394 in.
2.205 lb mass
0.7376 lb • ft
8.851 lb • in.
2.402 x 10-6 in.4
0.0209 lb/ft2
0.1450 lb/in.2
Metric Conversion
4.448 kN
4.448 N
0.3048 m
25.40 mm
0.4536 kg
1.356 N • m
0.1130 N • m
0.4162 x 106 mm4
47.88 Pa
6.895 kPa
Multiple pieces can be nailed or bolted together to form a header
or beam of the required size, up to a maximum width of 7"
header design example problem
1.Unfactored live load:
Case 2: 1.0 x 360 + 0.5 x 600 = 660 plf
Case 3: 1.0 x 600 + 0.5 x 360 = 780 plf
Therefore use Case 3 at 780 plf
2.Unfactored total load:
For Cases 2 and 3:
Unfactored dead load = 1.0 x 490 = 490 plf
Unfactored total load = 780 plf + 490 plf = 1,270 plf
Rough
opening
1⁄2
House width
maximum
3.Factored total load:
Case 2: 1.5 x 360 + 0.5 x 600 = 840 plf
Case 3: 1.5 x 600 + 0.5 x 360 = 1,080 plf
Therefore use Case 3 at 1,080 plf
Factored dead load = 1.25 x 490 = 613 plf
Factored total load = 1,080 + 613 = 1,693 plf
House width
Try using a 31⁄2" x 117⁄8" 1.55E TimberStrand® LSL header. See page 5 of this guide.
Determine the size of 1.55E TimberStrand® LSL header required for a 10' rough
opening for the given loads and assumptions:
■
■
■
■
1.55E TimberStrand® LSL: Floor and /or Snow—Standard
Span
House width = 36'
Trussed roof with 24" roof truss overhangs
Roof Load = 30 psf snow + 15 psf dead
Floor Load = 40 psf live + 12 psf dead
10'
12'
Calculated unfactored plf loads acting on the beam (20' roof and 9' floor tributary):
■
■
■
Summary:
Snow = 600 plf
Floor = 360 plf
Dead = 490 plf (includes wall load at 80 plf)
Condition
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
Unfactored Resistance (LL)
Unfactored Resistance (TL)
Total Factored Resistance
Min. End/Int. Bearing (in.)
9½"
524
775
1,373
1.7/4.3
311
457
950
3½" Width
14"
117⁄8"
975
1,520
1,449
*
2,106
2,886
2.6/6.5 3.6/8.9
588
929
868
1,378
1,457
1,998
16"
2,155
*
3,645
4.5/11.3
1,335
*
2,581
9½"
786
1,163
2,060
1.7/4.3
467
685
1,424
5¼" Width
16"
9¼"
2,155
729
*
1,078
3,645
1,957
4.5/11.3 1.7/4.1
1.Unfactored Resistance (LL) = 975 > 780 OK
2.Unfactored Resistance (TL) = 1,449 > 1,270 OK
3.Total Factored Resistance = 2,106 > 1,693 OK
Next, calculate design loads per 2010 NBCC load combinations (primary load and
companion load action).
Therefore, a 3½" x 117⁄8" 1.55E TimberStrand® LSL header is acceptable. The beam
requires 2.6" of bearing at end supports and 6.5" of bearing at intermediate support.
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 16
TJ-9505 | June 2014
9½"
786
1,163
2,060
1.7/4.3
11¼"
1,260
1,872
2,848
2.4/5.9
2
Parallam® PSL Columns
Axial Factored Resistances (lbs) for 1.8E Parallam® PSL
Column
Bearing
Type
On
Column
Base
Effective
Column
Length
6'
7'
8'
9'
10'
12'
14'
16'
18'
20'
22'
24'
Column Size
3½" x 3½"
3½" x 5¼"
3½" x 7"
5¼" x 5¼"
5¼" x 7"
7" x 7"
15,342
13,216
11,227
9,450
7,910
5,522
3,892
23,013
19,823
16,841
14,175
11,871
8,287
5,837
30,684
26,431
22,455
18,900
15,821
11,048
7,782
43,054
40,209
37,152
34,003
30,869
24,964
19,853
15,664
12,357
9,773
57,406
53,612
49,536
45,338
41,160
33,285
26,470
20,885
16,464
13,030
81,855
78,921
75,642
71,899
67,984
59,793
51,644
43,999
37,135
31,166
26,111
21,852
Slenderness ratio exceeds 50
The column values listed are for dry-service
only. When wet-service ­conditions exist,
contact your Weyerhaeuser ­representative for
other ­product solutions.
­conditions
Wide face
of strands
DO NOT install bolts or
screws into the narrow
face of strands
General Notes
Tables are based on:
–Solid, one-piece column members used in ­dry‑service conditions.
– Bracing in both directions at column ends.
–CSA O86.
–Simple columns with axial loads only. For side loads or other combined bending and axial loads, see the
CSA O86 provisions.
–KD = 1.0, where the specified snow or live load is greater than the specified dead load. For other load cases,
use Weyerhaeuser software.
■
■
■
Wide face
of strands
Factored resistances have been adjusted to accommodate the worst case of the following eccentric conditions:
1⁄6 of column thickness (first dimension) or 1⁄6 of column width.
In order to use the manufacturer’s published
capacities when designing column caps, bases,
or holdowns for uplift, the bolts or screws must
be installed perpendicular to the wide face of
strands, as shown above.
Beams and columns must remain straight to within 5L2⁄4608 (in.) of true alignment. L is the unrestrained length
of the member in feet.
For column specified strengths see page 4.
Top or Bottom Plate Connection
Beam on Column Cap
P1
Two 16d (0.162" x 3½")
nails for every 1¾" of column
width, nailed through the plate
into the column
Column Base
P2
Elevated Column Base
Beam on Column
11⁄8" TJ® Rim Board or 1¼" TimberStrand® LSL
blocking for lateral support
Optional
non-shrink
grout
Strap per
code if top
plate is not
continuous
over column
Column
P3
L1
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 17
TJ-9505 | June 2014
NOTES
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 18
TJ-9505 | June 2014
NOTES
Trus Joist® Beam, Header, and Column Specifier’s Guide (W. Canada) 19
TJ-9505 | June 2014
We Can Help You Build Smarter
You want to build solid and durable structures—we want to help. Weyerhaeuser
provides high-quality building products and unparalleled technical and field
assistance to support you and your project from start to finish.
Floors and Roofs: Start with the best framing components in the industry: our
Trus Joist® TJI® joists; TimberStrand® LSL rim board; and TimberStrand® LSL,
Microllam® LVL, and Parallam® PSL headers and beams. Pull them all together
with our self-gapping and self-draining Weyerhaeuser Edge Gold™ floor panels and
durable Weyerhaeuser roof sheathing.
Walls: Get the best value out of your framing package—use TimberStrand® LSL
studs for tall walls, kitchens, and bathrooms, and our traditional, solid-sawn
lumber everywhere else. Cut down installation time by using TimberStrand® LSL
headers for doors and windows, and Weyerhaeuser wall sheathing with its handy
two-way nail lines.
Software Solutions: Whether you are a design professional or lumber dealer,
Weyerhaeuser offers an array of software packages to help you specify individual
framing members, create cut lists, manage inventories—even help you design a
complete structural frame. Contact your Weyerhaeuser representative to find out
how to get the software you need.
Technical Support: Need technical help? Weyerhaeuser has one of the largest
networks of engineers and sales representatives in the business. Call us for help,
and a skilled member from our team of experts will answer your questions and
work with you to develop solutions that meet all your structural framing needs.
CONTACT US
1.888.453.8358 • woodbywy.com/contact
Contact your local representative or dealer at:
Visit woodbywy.com/warranty for copies of this and other
Trus Joist® Engineered Wood Product warranties.
June 2014 • Reorder TJ-9505
This document supersedes all previous versions.
If this is more than one year old, contact your
dealer or Weyerhaeuser rep.
, Weyerhaeuser, Microllam, Parallam, TimberStrand, TJ, TJI, and Trus Joist are registered trademarks
and Edge Gold and TJ-Pro are trademarks of ­Weyerhaeuser NR. © 2014 Weyerhaeuser NR Company.
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