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
StiffClip LB
Downloads: Download Technical data Tech Sheet | Download drawing file DWG | Download BIM data BIM
  • Application Image
  • Installation
  • Nomenclature/Order Info
  • Allowable Loads
  • Material Composition

StiffClip LB app

  1. Secure LB to pour stop with engineered attachment.
  2. Connect clip to stud with screws provided.

pdf icon Printable Installation Instructions

Quantity/Order Information

Designation
Qty/Box
Lbs/Box
Pcs/Skid
Lbs/Skid
LB362/400  50 30 2250 1350
LB600  50 45 2250 2025
LB800  50 50 1600 1600
LB1000  25 40 1125 1800
LB1200  25 44 800 1408

 

StiffClip LB Dimensions 

Nomenclature

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

Example: 6” stud depth
Designate: StiffClip® LB600.
StiffClip®
Series		 Stud
Thickness
Mils (ga)		 Fy
(Yield)
Stud
(ksi)		 LB362 and LB600 LB362 LB600 (Standard 1" Offset)
F1 w/ 3
#12 Screws
Pattern 2 (lbs)		 F2 w/ 2 #12
Screws
Pattern 1 (lbs)		 F2 w/ 3
#12 Screws
Pattern 2 (lbs)		 F2 w/ 4
#12 Screws
Pattern 3 (lbs)		 F3 w/ 2
#12 Screws
Pattern 1 (lbs)		 F3 w/ 3
#12 Screws
Pattern 2(lbs)		 F3 w/ 4
#12 Screws
Pattern 3 (lbs)		 F3 w/ 2
#12 Screws
Pattern 1 (lbs)		 F3 w/ 3
#12 Screws
Pattern 2 (lbs)		 F3 w/ 4
#12 Screws
Pattern 3 (lbs)
LB
Series
Clip is
14ga
(68mils)		 33 (20)  33 190 376 477 752 235 350 468 216 373 431
33 (20)  50 275 544 689 1089 340 506 678 313 539 623
43 (18)  33 248 560 709 1120 350 522 697 322 555 641
43 (18)  50 359 810 1025 1620 506 753 1009 466 802 928
54 (16)  33 312 788 988 1576 493 733 981 453 781 902
54 (16)  50 450 1138 1441 1954 711 1059 1417 654 1128 1303
68 (14)  50 568 1610 1954 1954 1006 1498 2004 926 1594 1843
97 (12)  50 768 1698 1954 1954 1061 1579 2114 976 1681 1923
Max. Allowable Clip Load 768 1954 1954 1954 2658 2658 2658 1923 1923 1923
StiffClip®
Series		 Stud
Thickness
Mils (ga)		 Fy
(Yield)
Stud
(ksi)		 LB800 (Standard 2" Offset) LB800, 4” Offset
F1 w/ 3
#12 Screws
Pattern 4 (lbs)		 F2 w/ 3
#12 Screws
Pattern 4 (lbs)		 F2 w/ 4
#12 Screws
Pattern 5 (lbs)		 F3 w/ 3
#12 Screws
Pattern 4 (lbs)		 F3 w/ 4
#12 Screws
Pattern 5 (lbs)		 F3 w/ 6
#12 Screws
Pattern 6 (lbs)		 F3 w/ 10 #12
Screws
Pattern 7 (lbs)		 F3 w/ 4
 #12 Screws
Pattern 8 (lbs)		 F3 w/ 6
 #12 Screws
Pattern 9 (lbs)		 F3 w/ 8
 #12 Screws
Pattern 10 (lbs)
LB800
Series
Clip is
14ga
(68mils)		 33 (20)  33 190 535 752 320 370 534 793 259 331 417
33 (20)  50 275 773 1089 463 536 773 1149 376 479 604
43 (18)  33 248 796 1120 477 552 795 1182 386 493 622
43 (18)  50 322 1150 1620 689 798 1150 1710 559 713 899
54 (16)  33 322 1120 1576 670 776 1119 1663 544 693 875
54 (16)  50 322 1617 1954 968 1121 1616 2401 785 1001 1263
68 (14)  50 322 1954 1954 1369 1586 2286 3397 1111 1417 1561
97 (12)  50 322 1954 1954 1443 1673 2411 3583 1172 1494 1561
Max. Allowable Clip Load 322 1954 1954 3863 3863 3863 3863 1561 1561 1561
StiffClip®
Series		 Stud
Thickness
Mils (ga)		 Fy
(Yield)
Stud
(ksi)		 LB1000 & LB1200 (Standard 2" Offset) LB1000 (Standard 2" Offset) LB1200 (Standard 2" Offset)
F1 w/ 3
 #12 Screws
Pattern 12 (lbs)		 F2 w/ 3
 #12 Screws
Pattern 12 (lbs)		 F2 w/ 4 #12
Screws
Pattern 13 (lbs)		 F3 w/ 2 #12
Screws
Pattern 11 (lbs)		 F3 w/ 3 #12 Screws
Pattern 12 (lbs)		 F3 w/ 4 #12
Screws
Pattern 13 (lbs)		 F3 w/ 2 #12
Screws
Pattern 11 (lbs)		 F3 w/ 3 #12
Screws
Pattern 12 (lbs)		 F3 w/ 4 #12
Screws
Pattern 13 (lbs)
LB1000
& 1200
Series
Clip is
14ga
(68mils))		 33 (20)  33 190 550 752 203 364 406 211 381 421
33 (20)  50 275 795 1062 294 525 588 305 550 610
43 (18)  33 248 819 1062 302 541 605 314 566 627
43 (18)  50 359 1062 1062 438 782 875 454 818 907
54 (16)  33 312 1062 1062 426 761 851 441 796 883
54 (16)  50 450 1062 1062 615 1099 1229 637 1150 1275
68 (14)  50 532 1062 1062 869 1554 1739 902 1627 1803
97 (12)  50 532 1062 1062 917 1639 1793 951 1715 1899
Max. Allowable Clip Load 532 1062 1062 1793 1793 1793 1899 1899 1899
StiffClip®
Series		 Stud
Thickness
Mils (ga)		 Fy
(Yield)
Stud
(ksi)		 LB1000, 4” Offset
F1 w/ 3 #12
Screws
Pattern 12 (lbs)		 F2 w/ 3 #12
Screws
Pattern 12 (lbs)		 F2 w/ 4 #12 Screws
Pattern 13 (lbs)
LB1000,
4” Offset
(6” to stud
and 4” distance
from
structure)		 33 (20)  33 290 410 602
33 (20)  50 419 593 871
43 (18)  33 431 610 896
43 (18)  50 624 883 1192
54 (16)  33 607 859 1192
54 (16)  50 876 1192 1192
68 (14)  50 1192 1192 1192
97 (12)  50 1192 1192 1192
Max. Allowable Clip Load 1192 1192 1192

Important Notes:

  • 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 F2 & F3 allowable loads, it is assumed that half of the torsional moment is taken by the connection to the structure and half taken by the structure and half taken by the connection to the stud.
  • StiffClips LB1000 and LB1200 contain 1/2” return lips on the top and bottom of the leg attaching to the stud for increased stiffness.

  • The attachment of StiffClip® to the structure may be made with either a PAF or weld and is dependent upon base material properties and the design configuration. Allowable load tables incorporate eccentric loading of fasteners. Values with a welded connection may increase.

    Note:

    For PAF’s, fasten within ¾” from the angle heel centerline of the 1½” leg. Guide holes for attachment to structure are .172” in diameter for LB362, .141" in diameter for LB800 and LB600.

 

Screw Patterns

LB Screw Patterns

Load Direction

StiffClip LB-Load Direction

Steel: 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 a PAF, screw/bolt anchors or weld is dependent upon the base material (steel or concrete) and the design configuration.