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StiffClip® LB

StiffClip LB

The StiffClip® LB series connects exterior wall studs to the building’s structure through a unique design incorporating the use of stiffened legs of a 90o angle to increase bending strength. StiffClip LB resists horizontal and vertical loads. The allowable design load table shown below is based on the use of StiffClip LB as it is attached to various steel stud depths, material thicknesses and yield strengths. Design loads consider loads on the clip and #12 screw fasteners to the stud web. Pre-drilled guide holes in each leg allow for greater installation efficiency.

Value

  • Various lengths allow for construction tolerance
  • Guide holes for attachment to structure and stud
  • Replaces expensive bracing
  • Structurally load tested
 
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Product Information
StiffClip LB app

Material Composition

ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, 68mil minimum thickness (14 gauge, 0.0713” design thickness) with ASTM A653/A653M G90 (Z275) hot dipped galvanized coating

The attachment of StiffClip to the primary structure may be made with PAF's, screw/bolt anchors or weld and is dependent upon the base material (steel or concrete) and the design configuration.

  1. Secure LB to pour stop with engineered attachment.
  2. Connect clip to stud with approved screws (not provided by TSN).

pdf icon Printable Installation Instructions

Order Information
Designation Qty/Box Lbs/Box Qty/Skid Lbs/Skid
LB362/400 50 26 4,500 2,340
LB600 50 38 4,500 3,420
LB800 50 48 2,000 1,920
LB1000 25 28 1,125 1,260
LB1200 25 33 1,125 1,485

Nomenclature

StiffClip LB is available for various stud depths. To specify, multiply stud depth by 100.

Example: 6” stud depth
Designate: StiffClip® LB600

StiffClip LB Dimensions
StiffClip® LB, Recommended Allowable Load (lbs): F1
Stud LB362 LB600 LB800
(Standard 2" Offset)
LB1000
(Standard 2" & 4" Offset)

LB1200
(Standard 2" Offset)
Thickness Mils (ga) Yield Strength (ksi) w/3 #12 Screws w/3-4 #12 Screws w/3 #12 Screws w/3 #12 Screws
Pattern 2 Patterns 2 & 3 Pattern 4 Pattern 12
33 (20) 33 190 191 190 190
33 (20) 50 275 275 275 275
43 (18) 33 248 248 248 248
43 (18) 50 359 359 322 359
54 (16) 33 312 312 322 312
54 (16) 50 450 450 322 450
68 (14)  50 568 536 322 532
97 (12) 50 768 536 322 532
Maximum Allowable Clip Load 768 536 322 532


 
StiffClip® LB, Recommended Allowable Load (lbs): F2
Stud LB362 & LB600 LB800
(Standard 2" Offset)
LB1000 & LB1200
(Standard 2" Offset)
Thickness Mils (ga) Yield Strength (ksi) w/2 #12 Screws w/3 #12 Screws w/4 #12 Screws w/3 #12 Screws w/4 #12 Screws w/3 #12 Screws w/4 #12 Screws
Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5 Pattern 12 Pattern 13
33 (20 33 376 565 752 565 752 565 752
33 (20) 50 544 817 1,089 817 1,089 816 1,062
43 (18) 33 560 841 1,120 841 1,120 840 1,062
43 (18) 50 810 1,215 1,620 1,215 1,620 1,062 1,062
54 (16) 33 788 1,183 1,576 1,183 1,576 1,062 1,062
54 (16) 50 1,138 1,709 1,954 1,709 1,954 1,062 1,062
68 (14) 50 1,610 1,954 1,954 1,954 1,954 1,062 1,062
97 (12) 50 1,698 1,954 1,954 1,954 1,954 1,062 1,062
Maximum Allowable Clip Load 1,954 1,954 1,062


 
StiffClip® LB, Recommended Allowable Load (lbs): F3
Stud LB362 LB600 (Standard 1" Offset)
Thickness Mils (ga) Yield Strength (ksi) w/2 #12 Screws w/3 #12 Screws w/4 #12 Screws w/2 #12 Screws w/3 #12 Screws w/4 #12 Screws
Pattern 1 Pattern 2 Pattern 3 Pattern 1 Pattern 2 Pattern 3
33 (20) 33 235 350 468 251 377 503
33 (20) 50 340 506 678 362 544 727
43 (18) 33 350 522 697 373 561 749
43 (18) 50 506 753 1,009 539 810 1,082
54 (16) 33 493 733 981 524 789 1,053
54 (16) 50 711 1,059 1,417 757 1,139 1,521
68 (14) 50 1,006 1,498 2,004 1,071 1,610 1,792
97 (12) 50 1,061 1,579 2,114 1,129 1,698 1,792
Maximum Allowable Clip Load 2,658 1,792


 
StiffClip® LB, Recommended Allowable Load (lbs): F3
Stud LB800 (Standard 2" Offset) LB800 (4" Offset)
Thickness Mils (ga) Yield Strength (ksi) w/3 #12 Screws w/4 #12 Screws w/6 #12 Screws w/10 #12 Screws w/4 #12 Screws w/6 #12 Screws w/8 #12 Screws
Pattern 4 Pattern 5 Pattern 6 Pattern 7 Pattern 8 Pattern 9 Pattern 10
33 (20) 33 320 370 534 793 259 331 417
33 (20) 50 463 536 773 1,149 376 479 604
43 (18) 33 477 552 795 1,182 386 493 622
43 (18) 50 689 798 1,150 1,710 559 713 899
54 (16) 33 670 776 1,119 1,663 544 693 875
54 (16) 50 968 1,121 1,616 2,401 785 1,001 1,263
68 (14) 50 1,369 1,586 2,286 3,397 1,111 1,417 1,561
97 (12) 50 1,443 1,673 2,411 3,583 1,172 1,494 1,561
Maximum Allowable Clip Load 3,863 1,561


 
StiffClip® LB, Recommended Allowable Load (lbs): F3
Stud LB1000 (Standard 2" Offset) LB1000 (4" Offset) LB1200 (Standard 2" Offset)
Thickness Mils (ga) Yield Strength (ksi) w/2 #12 Screws w/3 #12 Screws w/4 #12 Screws w/4 #12 Screws w/6 #12 Screws w/10 #12 Screws w/2 #12 Screws w/3 #12 Screws w/4 #12 Screws
Pattern 11 Pattern 12 Pattern 13 Pattern 14 Pattern 15 Pattern 16 Pattern 11 Pattern 12 Pattern 13
33 (20) 33 203 364 406 290 410 602 211 381 421
33 (20) 50 294 525 588 419 593 871 305 550 610
43 (18) 33 302 541 605 431 610 896 314 566 627
43 (18) 50 438 782 875 624 883 1,192 454 818 907
54 (16) 33 426 761 851 607 859 1,192 441 796 883
54 (16) 50 615 1,099 1,229 876 1,192 1,192 637 1,150 1,275
68 (14) 50 869 1,554 1,739 1,192 1,192 1,192 902 1,627 1,803
97 (12) 50 917 1,639 1,793 1,192 1,192 1,192 951 1,715 1,899
Maximum Allowable Clip Load 1,793 1,192 1,899

Notes:

  • Allowable load tables incorporate eccentric loading of fasteners. Values with a welded connection may increase.
  • StiffClip LB resists horizontal and vertical loads.
  • Allowable loads have not been increased for wind, seismic, or other factors.
  • Loads listed reflect force in a single direction. When multiple loads react on the connection, it is the responsibility of the designer to check the interaction of forces.
  • Torsional effects are considered on screw group for F3 allowable loads. It is assumed that half of the torsional moment is taken by the connection to the structure and half is taken by the connection to the stud.
  • Design loads consider loads on the clip and #12 screw fasteners to the stud web.
  • Strengthening ribs are present in 3-5/8", 6", and 8" sizes. StiffClip LB's 10" and 12" sizes contain ½" return lips on the top and bottom of the leg attaching to the stud for increased stiffness.

Screw Patterns

* Important Consideration: Pattern diagrams indicate fastener placement only. Each standard StiffClip LB product comes with 4 predrilled guide holes shown in Patterns 1, 2, & 3.  Alternate patterns can be implemented in the field or requested from TSN as a custom part.

StiffClip_LB_Screw_Patterns

Load Direction

StiffClip_LB_Load_Direction

TSN's Product Catalogs are an essential resource for the design of cold formed steel. Developed by Engineers, the catalogs contain design data for members, connectors, and fasteners.

StiffClip® LB and the rest of TSN's Rigid Connection Product Line can be found in the following Catalogs:

For a full list of our product catalogs, specification sections, inspection checklists, and research reports please click here.