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LGT/MGT/VGT/HGT Girder Tiedowns

LGT/MGT/VGT/HGT

Girder Tiedowns

This product's information may differ depending on the category of use. You are currently viewing details related to Girder Tiedowns. You can also view product information related to the category: Girder Tiedowns for Plated Truss

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 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.
  • Strong-Drive SDS Heavy-Duty Connector 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 GFCMU and concrete applications.
  • MGT — Install a minimum of (6) 10d nails into the face of roof member that is on same side as MGT base.

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

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

  1. Allowable loads have been increased for wind or earthquake loading with no further increase allowed; reduce where other loads govern.
  2. LGT2 — F2 load requires installation of (4) 16d sinkers in optional nail holes.
  3. LGT4 — F2 load requires installation of (7) 16d sinkers in optional nail holes.
  4. LGT4 — Uplift for DF/SP girder and SPF studs is 3,860 lb.
  5. 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.
  6. 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-C-HTIEBEARING.
  7. Girder tiedowns installed on the outside of the wall require a 3 1/2" overhang to achieve table loads.
  8. 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 1-2014 Sections 7.5.3.4 and 8.9.2 are met (pre-drilling required through the plate using a maximum of 5/32" bit).
  9. NAILS: 16d Sinker = 0.148" dia. x 3 1/4" long, 10d = 0.148" dia. x 3" long.
    See other nail sizes and information.
Typical LGT2 Installation
Typical LGT3-SDS2.5 Installation

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 FL11473
LGT3-SDS2.5 FL11473
LGT4-SDS3 FL11473
MGT FL11470 FL11473
VGT FL11473
VGTL FL11473
VGTR FL11473

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 D6: Girder/Truss to Wood 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 Directly 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
High Wind-Resistant Construction D23: Girder/Truss to Masonry/Concrete
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
High Wind-Resistant Construction D23: Girder/Truss to Masonry/Concrete
DWG DXF
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 D6: Girder/Truss to Wood 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 D7: Girder/Truss to Wood 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