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FGTR/LGT/VGT Retrofit Girder Tiedowns

FGTR/LGT/VGT

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The LGT, VGT and FGTR products are moderate- to high-load capacity girder tiedowns for new or retrofit applications.

LGT connectors provide a low-profile connection to the wall for easy installation of drywall. Simple to install and can be installed on the inside or outside of the wall.

The VGT variable girder tiedown is a higher-capacity alternative to the LGT and MGT for girder trusses. It attaches with Strong-Drive® SDS Heavy-Duty Connector screws to the side of truss and features a predeflected crescent washer that allows it to accommodate top chord pitches up to 8/12. The VGT is also available with one flange concealed for attachment to trusses with no tail.

The FGTR face-mount girder tiedown is a non-pitch specific girder tiedown that offers the highest uplift capacity for retrofit applications. The FGTRHL/R is designed for corner hip applications.

Material

  • VGT — 7 gauge; LGT2 — 14 gauge; LGT3/LGT4 — 12 gauge; FGTR — straps: 7 gauge, plate: 3 gauge

Finish

  • VGT, LGT — galvanized; FGTR — powder coated

Installation

  • Use all specified fasteners; see General Notes.
  • Connectors attached using Titen® 2 screws shall have hex heads.
  • To achieve the loads listed in the table below, the product shall be attached to a grouted and reinforced block wall or a reinforced concrete wall designed by others to transfer the high concentrated uplift loads to the foundation.
  • Strong-Drive SDS Heavy-Duty Connector screws included with LGT3, LGT4, VGT series and FGTR series.

VGT/FGTR:

  • Screw holes are configured to allow for double installation on a two-ply (minimum) truss.
  • The product can be installed in a single application or in pairs to achieve a higher uplift capacity.
  • Can be installed on roof pitches up to 8/12 or on a bottom chord designed to transfer the loads.
  • FGTR — only two of the four holes provided on each strap are required to be filled to achieve the published loads. The first Titen HD® anchor 1/2" x 5" (THD) shall be installed a minimum of 4" from the top of the wall. Anchors shall not be installed in adjacent holes.
  • VGT — when installed on trusses with no overhangs, specify VGTR/L.
  • VGT — install washer component (provided) so that top of washer is horizontal as well as parallel with top of wall.

Related Literature

Load Tables

FGTR/LGT/VGT Retrofit Girder Tiedowns Load Table
  1. Allowable loads have been increased for wind or earthquake loading with no further increase allowed. Reduce where other loads govern.
  2. To achieve the loads listed for the VGT single- and double-connector options, anchorage into a 8" wide concrete tie-beam or grouted and reinforced CMU tie-beam can be made using SET XP® anchoring adhesive with a minimum embedment depth of 12", with a minimum end distance of 12", and centered in the 8" member. Vertical reinforcement may be required to transfer the loads per Designer.
  3. Concrete shall have a minimum compressive strength of f'c = 2,500 psi.
  4. Grout-filled CMU (GFCMU) shall have a minimum compressive strength of f'm = 1,500 psi.
  5. FGTR — minimum edge distance for Titen HD® anchor is 4".
  6. FGTR — Titen HD® anchors should be spaced in every other hole on the part.
  7. FGTR — Titen HD® anchors and Strong-Drive® SDS Heavy-Duty Connector screws are provided with the part.
  8. LGT2 — F1 load = 700 lb.; F2 load = 170 lb.; LGT3 — F1 load = 795 lb.; F2 load = 385 lb.; LGT4 — F1 load = 2,000 lb.; F2 load = 675 lb.
  9. Products shall be installed such that Titen 2 screws and non-stainless Titen HD anchors are not exposed to the weather.
  10. For concrete wall applications, use 1/4" x 1 3/4" Titen® 2 screws.
  11. Strong-Drive® SDS Heavy-Duty Connector screws may be installed through metal truss plates as approved by the Truss Designer, provided the requirements of ANSI/TPI 1-2014, Sections 7.5.3.4 and 8.9.2 are met (predrilling required through the plate using a 5/32" bit maximum).
  12. See Titen® 2 screw information.
  13. Fasteners: Nail dimensions in the table are diameter by length. SDS screws are Simpson Strong-Tie® Strong-Drive® screws. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
FGTR FL11473
FGTRHL FL11473
FGTRHR FL11473
LGTSee specific model numbers for code listings.
LGT2 FL11473
LGT3-SDS2.5 FL11473
LGT4-SDS3 FL11473
VGT FL11473
VGTL FL11473
VGTR FL11473

Drawings

Part Orthographic Perspective
FGTR
FGTR Front View
DWG DXF
FGTR Right View
DWG DXF
High Wind Resistant Construction Detail D19: Post-Installed Truss/Rafter to Masonry/Concrete - HWRC D19 Post Installed TrussRafter to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail D21: Girder/Truss to Masonry/Concrete - HWRC D21 GirderTruss to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail D32: Truss/Rafter Hip to End Wall - HWRC D32 TrussRafter Hip to End Wall
DWG DXF
High Wind Resistant Construction Detail D33: Truss/Rafter Hip to End Wall - HWRC D33 TrussRafter Hip to End Wall
DWG DXF
FGTRHL
FGTRHL Front View
DWG DXF
FGTRHL Right View
DWG DXF
High Wind Resistant Construction Detail D25: Truss/Rafter Hip to Wall - HWRC D25 TrussRafter Hip to Wall
DWG DXF
High Wind Resistant Construction Detail D28: Truss/Rafter Hip to Wall - HWRC D28 TrussRafter Hip to Wall
DWG DXF
FGTRHRNone None
LGTNone None
LGT2
LGT2 Front View
DWG DXF
LGT2 Left View
DWG DXF
LGT2 Right View
DWG DXF
High Wind Resistant Construction Detail D20: Post-Installed Truss/Rafter to Masonry/Concrete - HWRC D20 Post Installed TrussRafter to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail - HWRC D23 Girder/Truss to Masonry/Concrete
DWG DXF
High Wind Resistant Construction Detail D40: Truss/Rafter Directly to Stud - HWRC D40 TrussRafter directly to stud
DWG DXF
LGT2 Installed Perspective View
DWG DXF
LGT2 Installed Perspective View - Masonry
DWG DXF
LGT2 Installed Perspective View - Wood to Wood
DWG DXF
LGT3
LGT3-SDS2.5 Front View
DWG DXF
LGT3-SDS2.5 Left View
DWG DXF
LGT3-SDS2.5 Right View
DWG DXF
High Wind Resistant Construction Detail - HWRC D23 Girder/Truss to Masonry/Concrete
DWG DXF
LGT3-SDS2.5 Installed Perspective View
DWG DXF
LGT4
LGT4-SDS3 Front View
DWG DXF
LGT4-SDS3 Left View
DWG DXF
LGT4-SDS3 Right View
DWG DXF
LGT4-SDS3 Top View
DWG DXF
High Wind Resistant Construction Detail - HWRC D23 Girder/Truss to Masonry/Concrete
DWG DXF
VGT
VGT Front View
DWG DXF
VGT Left View
DWG DXF
VGT Right View
DWG DXF
VGT Top View
DWG DXF
High Wind Resistant Construction Detail - HWRC D23 Girder/Truss to Masonry/Concrete
DWG DXF
High Wind Resistant Construction Detail - HWRC D7 Girder/Truss to Wood Wall Framing
DWG DXF
VGT Installed Perspective View
DWG DXF
VGT Installed Perspective View - Single Installation with HDU4
DWG DXF
VGTL
VGTL Front View
DWG DXF
VGTL Left View
DWG DXF
VGTL Right View
DWG DXF
VGTL Top View
DWG DXF
None
VGTR
VGTR Front View
DWG DXF
VGTR Left View
DWG DXF
VGTR Right View
DWG DXF
VGTR Top View
DWG DXF
None