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LGT/MGT/VGT/HGT Girder Tiedowns

LGT/MGT/VGT/HGT

The LGT, MGT, VGT and HGT are girder tiedowns for moderate to high load capacity applications. The LGT and VGT are also suitable for retrofit applications.

LGT connectors provide a low profile connection to the studs for easy installation of drywall. Simple to install and can be installed on the inside or outside of the wall. LGT connectors also provide exceptional bearing enhancement for heavy download applications. The LGT series has been extended to include the new LGT4-SDS3 for 4-ply girders.

The Variable Girder Tiedown (VGT) is a higher capacity alternative to the LGT and MGT for girder trusses. It attaches with Simpson Strong-Tie® 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 HGT offers the highest uplift capacity for girders and can be installed on trusses and beams with top chord slopes up to 8/12.

Material

HGT, VGT-7 gauge, LGT2-14 gauge, MGT, LGT3, LGT4-12 gauge.

Finish

HGT-Simpson Strong-Tie® gray paint; LGT, MGT, VGT-Galvanized

Installation

  • When the HGT-3 is used with a 2-ply girder or beam, shimming is required. Fasten to act as one unit.
  • Before installing fasteners, ensure LGT3-SDS2.5 makes complete contact with bottom of truss.
  • SDS screws included with LGT3, LGT4 and VGT Series.
  • VGT—Can be installed on roof pitches up to 8/12 or on a bottom chord designed to transfer the load.
  • VGT—Screw holes are configured to allow for double installation on a two-ply (minimum) truss.
  • VGT—The product can be installed in a single application or in pairs to achieve a higher uplift capacity.
  • 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 top plate.
  • LGT3-SDS2.5—The four large hexagon holes are intended for CMU and concrete applications.
  • For masonry applications, see MGT/HGT in Masonry Connectors.
  • View step-by-step installation instructions in the Installer's Pocket Guide (S-C-INSTALL).

Options

LGT3 and LGT4 are available with reduced widths of W = 4 3/4" and W = 6 5/16" – order as LGT3N-SDS2.5 and LGT4N-SDS3.

Related Literature

Load Tables

Typical LGT2 Installation
Typical LGT3-SDS2.5 Installation
  1. Allowable loads have been increased for wind or earthquake loading; no further increase allowed; reduce where other loads govern.
  2. LGT2—F1 load = 700 lbs., F2 load = 170 lbs. with installation of 4-16d sinkers optional nail holes.
  3. LGT3—F1 load = 795 lbs., F2 load = 410 lbs.
  4. LGT4—F1 load = 2000 lbs, F2 load = 675 lbs. with installation of 7 - 16d sinkers in optional nail holes.
  5. LGT4—Uplift for DF/SP girder and SPF studs is 3860 lbs.
  6. MGT can be installed with straps vertical for full table load provided all specified nails are installed to either a solid header or minimum double 2x6 web.
  7. LGT connectors can provide bearing enhancement loads for truss download reactions. The DF/SP allowable load shall be 2060 lbs. for LGT2 and 4100 lbs. for LGT3 and LGT4 (for SPF/HF values use a 0.68 multiplier).
    For more information refer to technical bulletin T-HTIEBEARING .
  8. Girder tiedowns installed on the outside of the wall require a 3 1/2" overhang to achieve table loads.
  9. Simpson Strong-Tie® Strong-Drive® screws are permitted to be installed through metal truss plates as approved by the Truss Designer, provided the requirements of ANSI/TPI 1-2007 Sections 7.5.3.4 and 8.9.2 are met (pre-drilling required through the plate using a maximum of 5/32" bit).
  10. NAILS: 16d Sinker = 0.148" dia. x 3 1/4" long, 10d = 0.148" dia. x 3" long. See other nail sizes and information.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
HGTSee specific model numbers for code listings.
HGT-2 ESR-2613 ESR-2616 ESR-2877 ESR-2523 RR25726 RR25806 FL10456 FL10866
HGT-3 ESR-2613 ESR-2616 ESR-2877 ESR-2523 RR25726 RR25806 FL10456 FL10866
HGT-4 ESR-2613 ESR-2616 ESR-2877 ESR-2523 RR25726 RR25806 FL10456 FL10866
LGT2 FL11470
LGT3-SDS2.5 FL11470
LGT4-SDS3 FL11470
MGT FL11470
VGT FL11470
VGTLNo code listing: Please contact us for test data.
VGTRNo code listing: Please contact us for test data.

ESR-2523 is an Index of many of Simpson Strong-Tie Stamped and Welded Cold-formed Steel Products for Wood or Cold-formed Steel Construction

Drawings

Part Orthographic Perspective
HGTNone
HGT with HTT
DWG DXF
HGT-2
HGT-2
DWGDXF
HGT-2 front view
DWG DXF
HGT-2 left view
DWG DXF
HGT-2 right view
DWG DXF
HGT-2 top view
DWG DXF
High Wind-Resistant Construction D23: Girder/Truss To Masonry/Concrete
DWG DXF
Girder/Truss to Concrete Connections 2
DWG DXF
HGT-2
DWG DXF
HGT-3
HGT-3
DWGDXF
HGT-3 front view
DWG DXF
HGT-3 right view
DWG DXF
HGT-3 top view
DWG DXF
High Wind-Resistant Construction D8: Girder/Truss to Wall Framing
DWG DXF
HGT-3
DWG DXF
HGT-4None None
LGT2
LGT2
DWGDXF
LGT2 front view
DWG DXF
LGT2 left view
DWG DXF
LGT2 right view
DWG DXF
High Wind-Resistant Construction D20: Post Installed Truss/Rafter To Masonry/Concrete
DWG DXF
High Wind-Resistant Construction D23: Girder/Truss To Masonry/Concrete
DWG DXF
High Wind-Resistant Construction D40: Truss/Rafter to Stud
DWG DXF
LGT2 Wood to Wood 1
DWG DXF
LGT2 Masonry
DWG DXF
LGT2 Wood to Wood 2
DWG DXF
LGT3
LGT3-SDS2.5
DWGDXF
LGT3-SDS2.5 front view
DWG DXF
LGT3-SDS2.5 left view
DWG DXF
LGT3-SDS2.5 right view
DWG DXF
LGT3-SDS2.5
DWG DXF
LGT4
LGT4
DWGDXF
LGT4 front view
DWG DXF
LGT4 left view
DWG DXF
LGT4 right view
DWG DXF
LGT4 top view
DWG DXF
None
MGT
MGT
DWGDXF
MGT front view
DWG DXF
MGT left view
DWG DXF
MGT right view
DWG DXF
MGT top view
DWG DXF
High Wind-Resistant Construction D23: Girder/Truss To Masonry/Concrete
DWG DXF
High Wind-Resistant Construction D8: Girder/Truss to Wall Framing
DWG DXF
MGT
DWG DXF
MGT & PHD5
DWG DXF
VGT
VGT
DWGDXF
VGT front view
DWG DXF
VGT left view
DWG DXF
VGT right view
DWG DXF
VGT top view
DWG DXF
High Wind-Resistant Construction D23: Girder/Truss To Masonry/Concrete
DWG DXF
High Wind-Resistant Construction D6: Girder/Truss to Wall Framing
DWG DXF
VGT Double Installation with HDU4s
DWG DXF
VGTR Single Installation with HDU4
DWG DXF
VGTL
VGTL
DWGDXF
VGTR
DWGDXF
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