Product Description
The Simpson Strong-Tie PFUD Post-Frame Under-Saddle Hanger for 2x4 Joists and 1-Ply Trusses (PFUD24) is a 20-gauge steel joist hanger engineered specifically for post-frame construction where ceiling joists must be securely attached to truss bottom chords. Designed to sit under the truss saddle, this connector simplifies ceiling joist installation by supporting joists on both sides of a truss from a single unit - cutting connector layout labor in half compared to using separate face-mounted hangers. With a G90 zinc galvanized finish and full code listing, this post-frame hanger delivers dependable performance for applications where ceiling panels act as diaphragms or bottom chord truss bracing is required.
Key Features
- Supports two ceiling joists from a single connector - reduces connector layout labor costs by half versus using separate face-mounted hangers, saving time on every installation.
- Under-saddle seat design fits snugly beneath the truss bottom chord - automatically aligns parts vertically, simplifying and accelerating the layout process on the job site.
- Easily halved along built-in perforations for one-sided use - eliminating the need for additional face-mounted hangers when single-side applications are required, giving builders flexible field adaptability.
- Load-rated for joist tension forces - ideal for ceiling panels acting as diaphragms or bottom chord truss bracing, providing greater reliability and load capacity than toe-nailed ceiling joists.
- Compatible with both nails and screws for load-rated performance - offers flexibility in fastener choice without sacrificing the structural integrity of the connection.
- Made from 20-gauge steel with a G90 zinc galvanized finish - provides corrosion resistance to support long-term durability in post-frame building environments.
- Nominal joist size of 2x4 and fits 1-ply trusses - ensures a precise, purpose-built fit for the most common post-frame ceiling joist and truss configurations.
- Fully tested and code listed - gives specifiers and builders confidence that the connector meets established strength and durability standards.
- Made in the United States - manufactured domestically for consistent quality and reliable availability.
Why This Product
- Cut your layout time significantly: Because one PFUD24 hanger handles ceiling joists on both sides of a truss, you install fewer connectors overall - reducing labor costs and speeding up post-frame framing schedules.
- Built-in field adaptability: The perforated design allows builders to split the hanger along its under-saddle perforations on the job site, instantly converting it to two single-sided face-mounted options without sourcing additional hardware.
- Stronger than traditional toe-nailing: This connector is load-rated for joist tension forces and offers greater reliability and load capacity than toe-nailed ceiling joists, making it a structurally sound upgrade for any post-frame ceiling joist connection.
- Corrosion-resistant construction for lasting performance: The G90 zinc galvanized finish protects the 20-gauge steel hanger from corrosion, supporting durability throughout the life of the structure.
Specifications
- Brand: Simpson Strong-Tie
- Part Number: PFUD24
- Gauge: 20
- Member Size: 2x4
- Product Class: Hanger
- Coating: Zinc Galvanized, G90
- Finish: Zinc Galvanized, G90
- Country of Origin: United States
Install With
- Install with (16 - 18) #9 x 1-1/2 in. Strong-Drive SD Connector screws OR (16 - 18) 0.148 in. x 1-1/2 in. Strong-Drive SCN Smooth-Shank Connector nails for 2-sided applications (Models: SD9112, N10DHDG)
Frequently Asked Questions
Can the PFUD24 be used for single-side joist applications?
Yes. The PFUD24 can be converted for single-sided use by splitting it along the built-in under-saddle perforations in the field. This creates two face-mounted hanger options, eliminating the need to source separate single-sided hangers for one-sided ceiling joist applications.
What fasteners are required to install the PFUD24?
For 2-sided applications, install the PFUD24 with 16 to 18 #9 x 1-1/2 in. Strong-Drive SD Connector screws (Model SD9112) OR 16 to 18 0.148 in. x 1-1/2 in. Strong-Drive SCN Smooth-Shank Connector nails (Model N10DHDG). The hanger is compatible with both nails and screws for load-rated performance.
Is the PFUD24 suitable for structural ceiling diaphragm applications?
Yes. The PFUD24 is load-rated for joist tension forces, making it well suited for ceiling panels acting as diaphragms or bottom chord truss bracing. It is fully tested and code listed, providing the structural reliability and documentation that specifiers and builders require for these demanding applications.
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