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LGT Light Girder Tiedown

LGT

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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 categories of: Girder Tiedowns for Masonry, Girder Tiedowns for Plated Truss

The LGT is a connector designed to resist light to moderate uplift loads of multi-ply trusses. This light girder tiedown provides a low-profile connection to the studs for easy installation of drywall. The LGT connector also provides exceptional bearing enhancement for heavy download applications.

Key Features

  • Suitable for retrofit applications
  • The embossments add stiffness in crucial areas for improved performance
  • Simple to install and can be installed on the inside or outside of the wall
  • Load rated to resist high-wind forces

Material

  • LGT2 — 14 gauge; LGT3/LGT4 — 12 gauge

Finish

  • Galvanized (G90). Some models availabale in HDG; see Corrosion Information.

Installation

  • Before installing fasteners, ensure LGT3-SDS2.5 makes complete contact with bottom of truss
  • Strong-Drive® SDS Heavy-Duty Connector screws included with LGT3 and LGT4
  • LGT3-SDS2.5 — the four large hexagon holes are intended for GFCMU and concrete applications

Related Literature

Wood Construction Connectors 2021-2023
C-C-2021
A catalog including new product information as well as any applicable specification and installation instructions for wood-to-wood and wood-to-concrete structural connectors.
Catalog
Conectores para la construcción con madera 2019–2020
C-C-2019SP
El catálogo incluye información sobre nuevos productos, así como especificaciones e instrucciones de instalación aplicables para conectores estructurales de madera a madera y de madera a concreto.
Catalog
High Wind Guide
F-C-HWG20
A comprehensive guide to help Designers select the most appropriate connections for challenging, high-wind regions.
Product Guide
Hurricane Tie Used for Truss Bearing Enhancement
T-C-HTIEBEAR18
A technical bulleting providing the allowable downloads of our hurricane ties when used for truss-bearing enhancement. The piece includes allowable loads for connectors and for the connectors and wood combined.
Technical Bulletin
Uplift Connectors Truss-To-Wall Tiedowns (Spruce-Pine-Fir)
T-C-UPLIFTSPF19
A technical bulletin providing allowable loads and fastening requirements for the common application of a wood truss supported by a spruce-pine-fir or hem-fir double top plate.
Technical Bulletin

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Description Ga. W (in.) H (in.) Coating/Material Product Includes Packaging Qty.
LGT2 2-ply width 14 7 1/4 13 1/2 Zinc Galvanized, G90 - 1
LGT2HDG 2-ply width 14 7 1/4 13 1/2 Hot-Dip Galvanized - 1
LGT3-SDS2.5 3-ply width 12 10 14 13/16 Zinc Galvanized, G90 (12) 1/4 in. x 2-1/2 in. Strong-Drive® SDS Heavy-Duty Connector screws 1
LGT4-SDS3 4-ply width 12 12 5/8 15 5/16 Zinc Galvanized, G90 (16) 1/4 in. x 3 in. Strong-Drive® SDS Heavy-Duty Connector screws 1

Load Tables

    These products are available with additional corrosion protection.

  1. See Straps and Ties General Notes.
  2. LGT2 — F2 load requires installation of (4) 0.148" x 3 1/4" sinkers or four #9 x 1 1/2" SD Connector screws (SD) in optional nail holes.
  3. LGT4 — F2 load requires installation of (7) 0.148" x 3 1/4" sinkers in optional nail holes.
  4. LGT4 — Uplift for DF/SP girder and SPF studs is 3,860 lb.
  5. LGT connectors can provide bearing enhancement loads for truss download reactions. For more information, refer to technical bulletin T-C-HTIEBEAR.
  6. LGT2 installed with #9 x 1 1/2" SD Connector screws (SD) will achieve double the uplift load when installed on opposite sides of the top plates, but on separate truss members. See typical back-to-back LGT2 installation detail. Lateral loads may not be doubled.
  7. Girder tiedowns installed on the outside of the wall require a 3 1/2" overhang to achieve table loads.
  8. 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).
  9. Fasteners: Nail dimensions in the table are listed diameter by length. SD and SDS screws are Simpson Strong-Tie® Strong-Drive screws. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.
Typical LGT2 Installation
Typical LGT3-SDS2.5 Installation

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT

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