The Simpson TB30 30 in. 20-Gauge Galvanized Tension Bridging by Simpson is a tension-type bridging connector built to brace floor joists and add critical structural stability to floor framing systems. Installed in cross pairs between joists, the TB30 resists joist rotation, holds members in proper alignment, and helps distribute loads across multiple joists for a stronger, more stable floor. With seven nail holes at each end, generous nailing flexibility is built right in, making the TB30 a practical and reliable choice for both residential framing and code-compliant structural projects.

Key Features

• Tension-type bridging with maximum nailing flexibility; use just two of the seven nail holes at each end - gives installers multiple nailing options without adding installation complexity, so you can work efficiently in tight or awkward joist bays
• Easy to install - reduces labor time in the field, making it a practical pick for production framing and smaller repair or renovation projects alike
• Engineer trusted and contractor proven - Simpson connectors are engineered, tested, and manufactured to the highest quality standards, giving you confidence the TB30 will perform when it counts
• 20-gauge steel construction - provides the structural rigidity needed for dependable joist bracing in floor framing applications
• Zinc Galvanized G90 coating - delivers extra corrosion resistance to help the connector hold up over the long term, even in demanding framing environments

Why This Product

• Built-in nailing flexibility speeds up installation - with seven nail holes at each end and only two required per end, you are never locked into a single nailing pattern, which helps you work faster and adapt to varying joist conditions on the job
• G90 galvanized coating for lasting corrosion resistance - the Zinc Galvanized G90 finish goes beyond basic protection, helping the TB30 maintain its integrity in floor systems where moisture exposure is a concern
• A connector backed by the engineering and testing of Simpson - Simpson connectors are the choice of engineers and contractors for projects that must meet building code requirements, so you can specify or install the TB30 with confidence in its performance
• Straightforward tension-type design that works as a system - because the TB30 is designed to be installed in cross pairs, it actively prevents joist rotation and distributes floor loads more evenly, improving the overall performance of the floor system rather than just bracing a single point

Specifications

• Model Number: TB30
• Gauge: 20
• Length: 30 in.
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Install With: TB requires two 10d x 1-1/2 in. fasteners per end
• Country of Origin: United States

Frequently Asked Questions

What type of bridging is the Simpson TB30, and how does it work?

The TB30 is a tension-type bridging connector. Because it works only in tension, it must be installed in cross pairs. When installed tightly in pairs between floor joists, it keeps joists in place, prevents rotation, and helps distribute loads over more than one joist for a stronger, more stable floor system.

How many nail holes does the TB30 have, and how many fasteners are required?

The TB30 features seven nail holes at each end for maximum nailing flexibility, but only two of those nail holes need to be used at each end. Installation requires two 10d x 1-1/2 in. fasteners per end.

What corrosion protection does the TB30 have?

The TB30 is made with 20-gauge steel and features a Zinc Galvanized G90 coating, which provides extra corrosion resistance to help ensure long-lasting performance in floor framing applications.

Who manufactures the TB30, and can it be trusted for structural applications?

The TB30 is manufactured by Simpson Strong-Tie, a brand whose connectors are engineered, tested, and manufactured to the highest quality standards. Simpson Strong-Tie connectors are the choice of engineers and contractors for projects that must meet building code requirements and structural performance standards.

Note: Product dimensions and/or screw or bolt holes may differ from picture.