The Simpson RTT12 18-Gauge Galvanized Rigid Tie Connector by Simpson is a structural wood connector engineered to reinforce T-shaped outer corner connections where two 1x members meet another member at a 90 deg. angle. Built for use with a 2x post and 1x joist, this rigid tie connector is the go-to choice for contractors and engineers who need dependable, code-conscious performance on framing and carpentry projects involving posts and joists.

Key Features

• T-shaped outer corner connection design - specifically reinforces the joint where two 1x members meet another at a 90 deg. angle, delivering targeted structural support right where corner connections are most vulnerable
• Compatible with 2x posts and 1x joists - matches common lumber dimensions used in framing and deck construction, making it a straightforward fit for a wide range of wood-to-wood connection projects
• Install vertical members first, then attach horizontal members - the recommended sequence simplifies alignment during installation, reducing frustration and saving time on the job
• Made from 18-gauge steel - provides a reliable strength-to-weight balance suited for structural connector applications without adding unnecessary bulk
• G90 zinc galvanized coating - delivers extra corrosion resistance to help the connector hold up over time in wood structure applications where moisture exposure is a concern
• Install with SD8x1.25 Strong-Drive screws - pairing with the specified fastener ensures the connection performs as engineered, supporting both structural integrity and installation confidence

Why This Product

• Engineered and tested for structural reliability - Simpson designs and tests its connectors to meet high quality standards, giving builders the confidence that this rigid tie connector will perform as expected in real-world framing applications
• Purpose-built geometry for corner framing - the RTT12 is designed specifically for T-shaped outer corner connections, meaning it fits the joint it is meant for without improvised workarounds or added hardware
• Corrosion-resistant finish extends service life - the G90 galvanized coating adds a layer of protection that helps the connector maintain its integrity over the long term, an important consideration for structural connections in wood framing
• Trusted by engineers and contractors - Simpson connectors are a recognized choice among construction professionals, making the RTT12 a low-risk, high-confidence selection for both home improvement projects and code-compliant structural builds

Specifications

• Model Number: RTT12
• Member Size: 2x post; 1x joist
• Gauge: 18
• Coating/Finish: Zinc Galvanized, G90
• Install With: SD8x1.25 Strong-Drive screws
• Country of Origin: United States

Frequently Asked Questions

What type of connection is the RTT12 designed for?

The RTT12 is designed for strengthening T-shaped outer corner connections where two 1x members join another member at a 90 deg. angle, specifically connecting a 2x post with a 1x joist.

What fasteners are required to install the RTT12?

The RTT12 should be installed with SD8x1.25 Strong-Drive screws. Fasteners are not included with the connector.

What is the recommended installation sequence for the RTT12?

For easier alignment, install the vertical members first and then attach the horizontal members when installing the RTT12 connector.

What corrosion protection does the RTT12 offer?

The RTT12 features a G90 zinc galvanized coating, which provides extra corrosion resistance to help ensure long-lasting performance in wood structure applications.