The Simpson BA48 Top-Flange Hanger for 4x8 by Simpson is a structural connector engineered for both solid sawn lumber and engineered wood applications where reliable medium-to-high load capacity is required. Built from 14-gauge steel with a G90 zinc galvanized finish, this top-flange joist hanger captures the top chord of the supported member to prevent rotation and deliver consistent structural performance. The BA series supports flexible nailing configurations - minimum nailing with positive-angle nailing (PAN) for moderate load conditions, and maximum nailing for higher load demands - making it a versatile choice for a wide range of framing and beam support applications.

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 eliminate the need for web stiffeners, reducing material costs and installation steps
• Positive-angle nailing (PAN) support - allows minimum nailing for moderate load conditions and maximum nailing for higher load demands, giving installers flexibility to match the connector to the application
• Compatible with engineered wood and solid sawn lumber - carries medium loads with solid sawn lumber and higher loads with engineered wood products, broadening its range of structural applications
• 14-gauge steel construction - provides the thickness and rigidity needed to handle the demands of 4x8 beam and joist connections in residential and light commercial framing
• G90 zinc galvanized finish - offers corrosion resistance to help maintain connector integrity in environments where moisture exposure is a concern
• Available for sloped and skewed configurations - can be modified to accommodate angled framing conditions, making it adaptable beyond standard square installations

Why This Product

• One connector, fewer complications - the one-piece formed design avoids the weak points and added labor associated with welded hangers, delivering a cleaner, faster install for 4x8 beam hanger applications
• Rotation prevention built in - the full-height joist flange actively captures the top chord to prevent joist rotation, removing the need for supplemental web stiffeners and keeping the framing assembly simpler and more economical
• Load flexibility for real-world framing - with support for both engineered lumber and solid sawn stock across a range of nailing configurations, this hanger adapts to varying structural demands on the same job site without requiring a different connector
• Corrosion-resistant finish for lasting performance - the G90 galvanized coating helps protect the connector against moisture-related degradation, supporting long-term reliability in the structural connections where it is installed

Specifications

• Model Number: BA48
• Member Size: 4x8
• Gauge: 14
• Width (W): 3 9/16 in.
• Height (H): 7 1/8 in.
• B: 3 in.
• Top Flange (TF): 2-1/2 in.
• Coating/Finish: Zinc Galvanized, G90
• 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 lumber types is the Simpson BA48 compatible with?

The BA48 is designed for both engineered wood and solid sawn lumber applications. It can carry medium loads with solid sawn lumber and higher loads when used with engineered wood products.

What nailing is required to install the BA48?

Install the BA48 using 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. The hanger supports both minimum nailing with positive-angle nailing (PAN) for moderate load conditions and maximum nailing for higher load demands.

Why does the BA48 not require web stiffeners?

The BA48 features a full-height joist flange that captures the top chord of the joist. This design prevents rotation and eliminates the need for web stiffeners, simplifying installation.

What corrosion protection does the BA48 have?

The BA48 is coated with a G90 zinc galvanized finish, providing reliable corrosion resistance suitable for typical construction environments.

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