The Simpson BA Top-Flange Joist Hanger for 3-1/2 in. x 18 in. Engineered Wood is a heavy-duty top-flange beam hanger from Simpson built for both engineered wood and solid sawn lumber framing applications. This single-piece 14-gauge steel hanger supports medium loads with solid sawn lumber and higher loads with engineered wood products, making it a dependable choice for a wide range of structural connections. The BA series accommodates flexible nailing configurations - minimum nailing with positive-angle nailing (PAN) for moderate load conditions and maximum nailing for higher load demands - giving contractors and builders the versatility to match the fastening approach to the job at hand.

Key Features

• Cost-effective one-piece design - eliminates the added expense and complexity of welded hangers, simplifying installation without sacrificing structural integrity
• Full-height joist flange - captures the top chord of the joist to prevent rotation and removes the need for web stiffeners, reducing material costs and labor on the job site
• Positive-angle nailing (PAN) with flexible load capacity - supports both minimum and maximum nailing configurations so the hanger can be adapted to moderate or higher load conditions as the application requires
• Compatible with engineered wood and solid sawn lumber - offers versatility across common framing materials, carrying medium loads with solid sawn lumber and higher loads with engineered wood products
• 14-gauge steel with Zinc Galvanized (G90) coating - provides extra corrosion resistance suited to demanding structural environments
• Available modified for sloped and/or skewed members - can be adapted to fit non-standard framing angles, adding flexibility for complex structural configurations

Why This Product

• One hanger, two load strategies - the BA design supports both minimum nailing with PAN for moderate load conditions and maximum nailing for higher loads, giving builders a single hardware solution that adapts to varying structural demands without switching products
• Eliminates extra hardware and labor - the full-height joist flange prevents joist rotation and removes the need for web stiffeners, cutting down on supplemental components and installation steps on engineered wood and solid sawn lumber framing projects
• Durable corrosion-resistant construction - the 14-gauge steel body with a G90 galvanized finish provides long-term protection against corrosion, making this hanger well-suited for structural applications where material longevity matters
• Adaptable for non-standard framing conditions - the BA can be modified to accommodate sloped and/or skewed members, making it a practical choice for structural framing layouts that go beyond standard square connections

Specifications

• Model Number: BA3.56/18
• Member Size: 3-1/2 in. x 18 in.
• Gauge: 14
• W (in.): 3 4/7
• H (in.): 18
• B (in.): 3
• TF (in.): 2-1/2
• Coating/Finish: Zinc Galvanized, G90
• Install With: 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
• Country of Origin: United States

Options

• 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 types of lumber is the BA3.56/18 compatible with?

The BA3.56/18 is designed for use with both engineered wood and solid sawn lumber applications. It carries medium loads with solid sawn lumber and higher loads with engineered wood products.

What gauge steel is used in the BA3.56/18, and what corrosion protection does it have?

The BA3.56/18 is made from 14-gauge steel and features a Zinc Galvanized (G90) coating for extra corrosion resistance.

Do I need web stiffeners when installing this hanger?

No. The BA3.56/18 features a full-height joist flange that captures the top chord of the joist to prevent rotation, which eliminates the need for web stiffeners.

What fasteners are required to install the BA3.56/18?

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.

Note: Product dimensions and/or nail holes may differ from picture. Please see item description for specifications.