StiffClip® RT

StiffClip® RT series secures and ties down roof framing members. StiffClip’s unique shape incorporates stiffened legs to increase compressive strength and resist horizontal, lateral, and uplift loads. The allowable design load table shown is based on the use of StiffClip® as it is attached to various steel stud material thicknesses and yield strengths. Design loads consider loads on the clip and the use of #12 screw fasteners relative to the framing material.

Value

  • Stiffened ribs for added strength
  • Guide holes for attachment to framing members (.188” dia.)
  • Engineered for steel members
  • Structurally load tested
  • Meets all building code criteria

 

RT650RT1300
StiffClip® RT 650

StiffClip® RT 1300

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

RT Application

  1. To install the StiffClip RT, place one end flush against the roof framing member with the other end abutting the wall framing member.
  2. Attachment includes 2 or 4 screws in the upper and lower parts of each StiffClip RT.

pdf icon Printable RT650 Installation Instructions

pdf icon Printable RT1300 Installation Instructions

Quantity/Order Information

Designation
Qty/Box
Lbs/Box
Pcs/Skid
Lbs/Skid
RT650-33  50 (pair)  15 2000 600
RT650-43  50 (pair)  18 2000 720
RT650-54  50 (pair)  22 2000 880
RT1300-33  100 29 2000 580
RT1300-43  100 35 2000 700
RT1300-54  100 43 2000 860

 

 

 

 

 

 

Nomenclature

StiffClip® RT650 is 6½” long, and may be used when wall studs do not align with roof framing member. The RT1300 is 13” long, and is used when wall studs align with roof framing member. Clips are designated by length, followed by thickness and number of screws used in each leg (determined by load requirements).

 

Available Thicknesses

Mils
Gauge
Decimal (in)
33 20 0.0346
43 18 0.0451
54 16 0.0566
StiffClip®
Series		 Minimum Framing
Thickness Mils (ga)		 Fy (yield)
Stud (ksi)		 F1 w/2 #12
Screws (lbs)		 F1 w/4 #12
Screws (lbs)		 F2 w/2 #12
Screws (lbs)		 F2 w/4 #12
Screws (lbs)		 F3 w/2 #12
Screws (lbs)		 F3 w/4 #12
Screws (lbs)		 StiffClip®
Series		 Minimum Framing
Thickness Mils (ga)		 Fy (yield)
Stud (ksi)		 F2 w/5 #12
screws in
short leg (lbs)
RT650-33
&
RT1300-33		 33 (20)  33 94 95 95 128 198 384 RT650-33 33 (20)  33 95
33 (20)  50 136 138 128 128 286 453 33 (20)  50 138
43 (18)  33 124 124 124 128 294 453 43 (18)  33 124
43 (18)  50 175 175 128 128 425 453 43 (18)  50 179
54 (16)  33 156 156 128 128 414 453 54 (16)  33 156
54 (16)  50 175 175 128 128 453 453 54 (16)  50 225
68 (14)  50 175 175 128 128 453 453 68 (14)  50 239
97 (12)  50 175 175 128 128 453 453 97 (12)  50 239
Max Allowable Loads (lbs) 175 128 453 Max Allowable Loads (lbs) 239
StiffClip®
Series		 Minimum Framing
Thickness Mils (ga)		 Fy (yield)
Stud (ksi)		 F1 w/2 #12
Screws (lbs)		 F1 w/4 #12
Screws (lbs)		 F2 w/2 #12
Screws (lbs)		 F2 w/4 #12
Screws (lbs)		 F3 w/2 #12
Screws (lbs)		 F3 w/4 #12
Screws (lbs)		 StiffClip®
Series		 Minimum Framing
Thickness Mils (ga)		 Fy (yield)
Stud (ksi)

F2 w/5 #12
screws in
short leg (lbs)
RT650-43 &
RT1300-43		 33 (20)  33 94 95 95 159 198 384 RT650-43 33 (20)  33 95
33 (20)  50 136 138 138 159 286 537 33 (20)  50 138
43 (18)  33 124 124 124 159 294 537 43 (18)  33 124
43 (18)  50 179 179 159 159 425 537 43 (18)  50 179
54 (16)  33 156 156 156 159 414 537 54 (16)  33 156
54 (16)  50 225 225 159 159 537 537 54 (16)  50 225
68 (14)  50 231 231 159 159 537 537 68 (14)  50 284
97 (12)  50 231 231 159 159 537 537 97 (12)  50 329
Max Allowable Loads (lbs) 231 159 537 Max Allowable Loads (lbs) 329
StiffClip®
Series		 Minimum Framing
Thickness Mils (ga)		 Fy (yield)
Stud (ksi)		 F1 w/2 #12
Screws (lbs)		 F1 w/4 #12
Screws (lbs)		 F2 w/2 #12
Screws (lbs)		 F2 w/4 #12
Screws (lbs)		 F3 w/2 #12
Screws (lbs)		 F3 w/4 #12
Screws (lbs)		 StiffClip®
Series		 Minimum Framing
Thickness Mils (ga)		 Fy (yield)
Stud (ksi)		 F2 w/5 #12
screws in
short leg
(lbs)
RT650-54
&
RT1300-54		 33 (20)  33 94 95 95 191 198 384 RT650-43 33 (20)  33 95
33 (20)  50 136 138 138 275 286 555 33 (20)  50 138
43 (18)  33 124 124 124 248 294 572 43 (18)  33 124
43 (18)  50 179 179 179 323 425 826 43 (18)  50 179
54 (16)  33 156 156 156 312 414 804 54 (16)  33 156
54 (16)  50 225 225 225 323 585 1024 54 (16)  50 225
68 (14)  50 284 284 284 323 751 1024 68 (14)  50 284
97 (12)  50 342 342 323 323 751 1024 97 (12)  50 405
Max Allowable Loads (lbs) 342 323 1024 Max Allowable Loads (lbs) 614

Load Directions:
F1 = Lateral F2 = Horizontal F3 = Uplift

  • Allowable loads have not been increased for wind, seismic, or other factors.
  • Number of screws designated represents the amount required in each leg of the clip.
  • 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 groups for F1, F2 & 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.
StiffClip RT Load Direction

ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, with ASTM A653/A653M G60 (Z180) hot dipped galvanized coating.