The Simpson PF28B PFB Galvanized Post-Frame Hanger for 2x8 is a top-flange joist hanger engineered by Simpson Strong-Tie specifically for post-frame construction. Dome-shaped joist nail holes guide nails into the proper installation angle automatically, while a folded seat raises the 2x joist slightly above the seat radius to enable a tighter connection to the back of the hanger. The result is a precise, high-strength purlin and joist connection that goes up quickly and holds reliably in pole barn and post-frame building applications.

Key Features

• Solid one-piece top flange - eliminates assembly steps and keeps the hanger positioned accurately during installation, saving time on every connection.
• Installation prongs - grip the framing member and hold the hanger in place while you drive fasteners, so one person can set hangers quickly without a helper holding parts steady.
• Double-shear nailing design - distributes the load throughout two points on each joist, delivering greater strength with fewer nails so you get a stronger connection without overdriving fasteners.
• Dome-shaped joist nail holes - guide nails into the correct angle automatically, reducing installation errors and ensuring every fastener seats where it needs to for full load transfer.
• Folded seat design - raises the joist slightly above the seat radius for a tighter fit against the back of the hanger, tightening the overall connection and reducing movement at the joint.
• 20-gauge steel construction with G90 zinc galvanized coating - provides the corrosion resistance needed for exposed post-frame environments where long-term durability matters.

Why This Product

• Built for post-frame construction specifically - unlike general-purpose joist hangers, the PF28B is designed around the demands of pole barn and post-frame building connections, with features like dome-guided nail holes and a folded seat that work together to produce tight, properly angled joints on 2x8 purlins and joists.
• Faster installation without sacrificing connection quality - the combination of a one-piece top flange and self-positioning installation prongs means the hanger goes on accurately the first time, reducing layout time and rework on repetitive framing runs.
• Stronger hold with fewer fasteners - the double-shear nailing design spreads load across two points per joist, so you achieve a high-strength connection without the extra fastener count that single-shear alternatives typically require.
• G90 galvanized coating for long-term performance - the zinc galvanized finish holds up in the moisture-prone conditions common to agricultural and post-frame structures, helping the hanger maintain its integrity over the life of the building.

Specifications

• Model No.: PF28B
• Nominal Joist Size: 2x8
• Gauge: 20
• Seat Width: 1-9/16 in.
• Width: 1-9/16 in.
• Height: 7-1/8 in.
• B: 1-1/4 in.
• TF: 1-1/2 in.
• Coating/Finish: Zinc Galvanized, G90
• Country of Origin: United States
• Install With: (2) 0.148 in. x 3 in. nails in the top and (6) 0.148 in. x 3 in. nails in the joist OR (2) 0.148 in. x 1-1/2 in. nails in the top, (4) 0.148 in. x 1-1/2 in. nails in the face and (6) 0.148 in. x 1-1/2 in. nails in the joist (sold separately)

Approved Applications

• Post-frame construction
• Top-flange joist and purlin connections in post-frame buildings

Frequently Asked Questions

What size joist is the PF28B designed for?

The PF28B is designed for nominal 2x8 joist members, with a seat width of 1-9/16 in.

What fasteners are required to install the PF28B?

The PF28B can be installed with either (2) 0.148 in. x 3 in. nails in the top and (6) 0.148 in. x 3 in. nails in the joist, or (2) 0.148 in. x 1-1/2 in. nails in the top, (4) 0.148 in. x 1-1/2 in. nails in the face and (6) 0.148 in. x 1-1/2 in. nails in the joist.

What is the gauge and coating of the PF28B?

The PF28B is made from 20-gauge steel with a Zinc Galvanized, G90 coating for corrosion resistance.

What makes the PF28B's double-shear nailing design beneficial?

The double-shear nailing design distributes the load throughout two points on each joist, providing greater strength with fewer nails compared to single-shear alternatives.

Note: Product dimensions may differ from picture.