The Simpson LGT3-SDS2.5 LGT 3-Ply Girder Tiedown with Strong-Drive SDS Screws by Simpson is a connector engineered for moderate-load uplift applications with multi-ply trusses, delivering a low-profile connection to studs that keeps drywall installation straightforward. Built from 12-gauge steel with a G90 zinc galvanized finish, this light girder tiedown also provides exceptional bearing enhancement for heavy download applications, making it a reliable choice for both new construction and retrofit projects exposed to high-wind conditions.

Key Features

• Suitable for retrofit applications - can be added to existing structures without major modification, saving time and labor on upgrade projects.
• Installs on the inside or outside of the wall - gives contractors the flexibility to choose the most practical mounting position for any job site condition.
• Embossments add stiffness in crucial areas - improves overall structural performance by reinforcing the connector exactly where load stress is highest.
• Load rated to resist high-wind forces - provides confidence in regions with demanding wind uplift requirements, meeting the needs of code-compliant framing details.
• Four large hexagon holes designed for GFCMU and concrete applications - expands the range of compatible substrates, making this tiedown effective across masonry, concrete, and wood-framed assemblies.
• 3-ply configuration - matches the connector directly to multi-ply truss systems, ensuring proper load transfer across the full width of the girder.
• Made from 12-gauge steel - delivers the structural strength required for moderate-load uplift connections without unnecessary bulk.
• G90 zinc galvanized coating - provides extra corrosion resistance for long-term durability in environments where moisture exposure is a concern.
• Includes (12) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws - arrives ready to install so crews are not delayed sourcing compatible fasteners separately.

Why This Product

• Versatile across multiple substrates - the four large hexagon holes make this girder tiedown suitable for wood-framed, GFCMU, and concrete applications alike, reducing the need to source different connectors for different substrates on the same project.
• Retrofit-ready design - because it installs on either the inside or outside of the wall, this connector fits into existing structures where access or space may be limited, adding real value on renovation and upgrade work.
• Low-profile form for cleaner finishes - the tiedown's low-profile connection to studs keeps the surface ready for drywall without requiring additional shimming or filler work.
• Stiffness-enhancing embossments plus G90 protection - the combination of strategically placed embossments for improved load performance and a G90 galvanized finish for corrosion resistance means this connector is built to perform structurally and hold up over time in demanding conditions.

Specifications

• Model Number: LGT3-SDS2.5
• Description: 3-ply width
• Gauge: 12
• Width: 10 in.
• Height: 14-13/16 in.
• Coating/Finish: Zinc Galvanized, G90
• Country of Origin: United States

Approved Applications

• Multi-ply truss moderate-load uplift connections
• GFCMU applications (using the four large hexagon holes)
• Concrete applications (using the four large hexagon holes)
• Retrofit installations on existing structures
• High-wind force resistance applications
• Heavy download bearing enhancement applications

What's Included

Each pack contains (1) LGT3-SDS2.5 Girder Tiedown, (12) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws.

Frequently Asked Questions

What fasteners are recommended for installing the LGT3-SDS2.5?

The LGT3-SDS2.5 installs with (12) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws, which are included. Additional fasteners depending on the substrate include (a) 16d sinkers or (b) 3/8 in. x 5 in. Titen HD anchors for concrete and GFCMU applications.

Can the LGT3-SDS2.5 be used in retrofit applications?

Yes. The LGT3-SDS2.5 is specifically noted as suitable for retrofit applications, and it can be installed on either the inside or outside of the wall, providing installation flexibility in existing structures.

What corrosion protection does the LGT3-SDS2.5 have?

The LGT3-SDS2.5 features a Zinc Galvanized, G90 coating, which provides extra corrosion resistance for long-term durability in demanding environments.

What are the four large hexagon holes on the LGT3-SDS2.5 used for?

The four large hexagon holes on the LGT3-SDS2.5 are specifically intended for GFCMU and concrete applications, allowing the connector to be anchored securely into these substrates when required.