The Simpson BA1.81/9.25 Top-Flange Joist Hanger is a cost-effective connector built for engineered wood and solid sawn lumber framing applications. Designed to carry medium loads with solid sawn lumber and higher loads with engineered wood products, this hanger fits a 1-3/4 in. x 9-1/4 in. member and gives structural framers the flexibility to dial in load capacity through minimum and maximum nailing options. Made from 12-gauge steel with a G90 zinc galvanized coating, the BA1.81/9.25 delivers reliable corrosion resistance for demanding jobsite conditions.

Key Features

• Two-level embossment at the top flange - provides increased stiffness, adding rigidity to the connection without requiring additional hardware
• Full-height joist flange - captures the top chord of the joist to prevent rotation and eliminate the need for web stiffeners, saving material and labor
• Min./max. nailing options - minimum nailing targets moderate load demands, whereas maximum nailing allows higher loads, giving engineers and builders design versatility on a single hanger
• Compatible with sloped and/or skewed members - available for special configurations to accommodate non-square framing conditions, reducing the need for field fabrication
• 12-gauge steel construction - delivers the structural strength required for medium-to-higher load joist-to-beam and joist-to-header connections
• G90 zinc galvanized finish - provides extra corrosion resistance, making this hanger suitable for applications where moisture exposure is a concern

Why This Product

• One hanger, two load levels - the min./max. nailing design means a single hanger model can serve both moderate and higher load requirements, reducing the number of SKUs a framer needs to stock and simplifying layout decisions on mixed-lumber projects
• Engineered-wood optimized - the BA series is specifically designed to carry higher loads when paired with engineered lumber and LVL products, making it a strong fit for modern construction where engineered wood joists are the norm
• Rotation control built in - the full-height joist flange actively captures the top chord to prevent joist rotation, eliminating the need for web stiffeners and cutting both material costs and installation time
• Confidence in the coating - the G90 galvanized finish meets a recognized corrosion-resistance standard, so the connection maintains its integrity in humid or moisture-exposed framing environments over the long term

Specifications

• Model Number: BA1.81/9.25
• Member Size: 1-3/4 in. x 9-1/4 in.
• Steel Gauge: 12
• W (in.): 1-4/5
• H (in.): 9-1/4
• B (in.): 3
• TF (in.): 2-1/2
• Coating / Finish: Zinc Galvanized, G90
• Country of Origin: United States

Approved Applications

The BA series top-flange hanger is designed for use in the following structural framing applications:

• Engineered wood products - Optimized to carry higher loads when used with engineered lumber, LVL, and similar products
• Solid sawn lumber - Suitable for medium-load applications with dimensional lumber framing
• Top-flange installations - Ideal where a top-flange connection style is required for joist-to-beam or joist-to-header connections

Installation

Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist. Minimum nailing targets moderate load demands; maximum nailing allows higher loads for more demanding structural requirements.

• Other widths are available; specify W dimension (the minimum W dimension is 1 9/16").
  
• For modified hangers, fastener quantity listed in tables may need to increase depending on joist size, skew and slope. All modified hangers are 12 ga.
• Hangers may be modified for slopes and/or skews up to 45 deg.. The top flanges may be sloped as much as 35 deg. and may be open or closed up to 30 deg.. See Modifications and Associated Load Reductions under Specifications
• Contact us for Customizations and Special orders

Frequently Asked Questions

What size joist does the BA1.81/9.25 fit?

This hanger is sized for a 1-3/4 in. x 9-1/4 in. engineered wood or solid sawn lumber joist member.

What gauge steel is this hanger made from?

The BA1.81/9.25 is manufactured from 12-gauge steel, providing a strong and durable connection for structural framing applications.

What corrosion protection does this hanger have?

This hanger features a G90 zinc galvanized coating, which provides an extra layer of corrosion resistance for long-lasting performance.

What nails should I use to install the BA1.81/9.25?

Install using 0.162 in. x