StiffClip® RT650 Roof Tie

 
Product Application

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.

Material Composition

ASTM A653/A653M, Grade 50 (340), 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, G-90 (Z275) hot-dipped galvanized coating.

Available Thicknesses
Mils
Gauge
Decimal (in)
33
20
0.0346
43
18
0.0451
54
16
0.0566

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StiffClip RT 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).

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

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StiffClip RT650 Dimensions
StiffClip RT1300 Dimensions
  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
StiffClip RT650 Installation
  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.
StiffClip RT1300 Installation
  1. For the StiffClip RT1300, place the clip flush against roof framing member, top plate, and wall stud.
  2. Attachment includes 2 or 4 screws in each of the upper, middle, and lower parts of each StiffClip RT1300.

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Load Direction
StiffClip RT650 Load Direction

Load Direction:
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.
StiffClip RT1300 Load Direction
  Allowable Loads  
RT650 RT1300
StiffClip Series
Minimum Framing Thickness Mils (ga)
Fy (yield) Stud
(Ksi)
F1 (kips)
F2 (kips)
F3 (kips)
RT650-33mil
(2 #12
Screws)
33 (20)
33
0.087
0.095
0.198
33 (20)
50
0.087
0.138
0.287
43 (18)
33
0.087
0.124
0.295
43 (18)
50
0.087
0.179
0.376
54 (16)
33
0.087
0.156
0.376
54 (16)
50
0.087
0.225
0.376
68 (14)
50
0.087
0.284
0.376
97 (12)
50
0.087
0.350
0.376
RT650-43mil
(2 #12
Screws)
33 (20)
33
0.120
0.095
0.376
33 (20)
50
0.120
0.138
0.544
43 (18)
33
0.120
0.124
0.560
43 (18)
50
0.120
0.179
0.560
54 (16)
33
0.120
0.156
0.560
54 (16)
50
0.120
0.225
0.560
68 (14)
50
0.120
0.284
0.560
97 (12)
50
0.120
0.350
0.560
RT650-54mil
(2 #12
Screws)
33 (20)
33
0.143
0.095
0.376
33 (20)
50
0.143
0.138
0.544
43 (18)
33
0.143
0.124
0.560
43 (18)
50
0.143
0.179
0.668
54 (16)
33
0.143
0.156
0.668
54 (16)
50
0.143
0.225
0.668
68 (14)
50
0.143
0.284
0.668
97 (12)
50
0.143
0.350
0.668
RT650-33mil
(4 #12
Screws)
33 (20) 
33
0.087
0.191
0.384
33 (20) 
50
0.087
0.275
0.408
43 (18) 
33
0.087
0.248
0.408
43 (18) 
50
0.087
0.350
0.408
54 (16) 
33
0.087
0.312
0.408
54 (16) 
50
0.087
0.350
0.408
68 (14) 
50
0.087
0.350
0.408
97 (12) 
50
0.087
0.350
0.408
RT650-43mil
(4 #12
Screws)
33 (20)
33
0.120
0.191
0.384
33 (20)
50
0.120
0.275
0.554
43 (18)
33
0.120
0.248
0.571
43 (18)
50
0.120
0.350
0.624
54 (16)
33
0.120
0.312
0.624
54 (16)
50
0.120
0.480
0.624
68 (14)
50
0.120
0.480
0.624
97 (12)
50
0.120
0.480
0.624
RT650-54mil
(4 #12
Screws)
33 (20)
33
0.143
0.191
0.384
33 (20)
50
0.143
0.275
0.554
43 (18)
33
0.143
0.248
0.571
43 (18)
50
0.143
0.359
0.668
54 (16)
33
0.143
0.312
0.668
54 (16)
50
0.143
0.450
0.668
68 (14)
50
0.143
0.480
0.668
97 (12)
50
0.143
0.480
0.668
StiffClip Series
Minimum Framing Thickness Mils (ga)
Fy (yield) Stud
(Ksi)
F1 (kips)
F2 (kips)
F3 (kips)
RT1300-33mil
(2 #12
Screws)
33 (20)
33
0.087
0.095
0.198
33 (20)
50
0.087
0.138
0.287
43 (18)
33
0.087
0.124
0.295
43 (18)
50
0.087
0.179
0.376
54 (16)
33
0.087
0.156
0.376
54 (16)
50
0.087
0.225
0.376
68 (14)
50
0.087
0.284
0.376
97 (12)
50
0.087
0.350
0.376
RT1300-43mil
(2 #12
Screws)
33 (20)
33
0.120
0.095
0.376
33 (20)
50
0.120
0.138
0.544
43 (18)
33
0.120
0.124
0.560
43 (18)
50
0.120
0.179
0.560
54 (16)
33
0.120
0.156
0.560
54 (16)
50
0.120
0.225
0.560
68 (14)
50
0.120
0.284
0.560
97 (12)
50
0.120
0.350
0.560
RT1300-54mil
(2 #12
Screws)
33 (20)
33
0.143
0.095
0.376
33 (20)
50
0.143
0.138
0.544
43 (18)
33
0.143
0.124
0.560
43 (18)
50
0.143
0.179
0.668
54 (16)
33
0.143
0.156
0.668
54 (16)
50
0.143
0.225
0.668
68 (14)
50
0.143
0.284
0.668
97 (12)
50
0.143
0.350
0.668
RT1300-33mil
(4 #12
Screws)
33 (20) 
33
0.087
0.191
0.384
33 (20) 
50
0.087
0.275
0.408
43 (18) 
33
0.087
0.248
0.408
43 (18) 
50
0.087
0.350
0.408
54 (16) 
33
0.087
0.312
0.408
54 (16) 
50
0.087
0.350
0.408
68 (14) 
50
0.087
0.350
0.408
97 (12) 
50
0.087
0.350
0.408
RT1300-43mil
(4 #12
Screws)
33 (20)
33
0.120
0.191
0.384
33 (20)
50
0.120
0.275
0.554
43 (18)
33
0.120
0.248
0.571
43 (18)
50
0.120
0.350
0.624
54 (16)
33
0.120
0.312
0.624
54 (16)
50
0.120
0.480
0.624
68 (14)
50
0.120
0.480
0.624
97 (12)
50
0.120
0.480
0.624
RT1300-54mil
(4 #12
Screws)
33 (20)
33
0.143
0.191
0.384
33 (20)
50
0.143
0.275
0.554
43 (18)
33
0.143
0.248
0.571
43 (18)
50
0.143
0.359
0.668
54 (16)
33
0.143
0.312
0.668
54 (16)
50
0.143
0.450
0.668
68 (14)
50
0.143
0.480
0.668
97 (12)
50
0.143
0.480
0.668

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  Oct 2008  

 

          Products are available through local distribution.
Build #: 27