The Simpson Strong-Tie PFUD Post-Frame Under-Saddle Hanger for 2x4 Joists and 2-Ply Trusses (PFUDS24) is a 20-gauge steel joist hanger engineered specifically for post-frame construction where ceiling joists must be reliably supported on both sides of a truss bottom chord. By sitting snugly under the truss as a continuous saddle seat, this connector automatically aligns joists vertically, cutting layout time significantly compared to traditional face-mounted hangers. Whether you are hanging ceiling panels that act as diaphragms or securing bottom chord truss bracing, the PFUDS24 delivers load-rated tension performance that far exceeds the reliability of toe-nailed ceiling joists.

Key Features

• Two-sided under-saddle design for 2-ply trusses - one hanger supports ceiling joists on both sides of the truss simultaneously, cutting the number of connectors needed and reducing layout labor costs by half compared to separate face-mounted hangers.
• Continuous seat that fits snugly under the truss bottom chord - automatically aligns parts vertically during installation, resulting in a faster and more accurate layout with fewer measurement steps.
• Perforated along the center for field-splitting - the hanger can be easily halved along the under-saddle perforations for single-sided use, eliminating the need for additional face-mounted hangers and giving installers flexible options in the field.
• Load-rated for joist tension forces - ideal for ceiling panels acting as diaphragms or bottom chord truss bracing, providing greater structural reliability and load capacity than toe-nailed ceiling joists.
• Compatible with both nails and screws for load-rated performance - works with Strong-Drive SD Connector screws and Strong-Drive SCN Smooth-Shank Connector nails, giving installers flexibility in fastener choice without sacrificing rated capacity.
• Made from 20-gauge steel with G90 zinc galvanized finish - the galvanized coating provides corrosion resistance, extending service life in post-frame building environments.
• Nominal joist size: 2x4 - sized precisely for 2x4 ceiling joists, ensuring a snug, properly loaded connection without modification.
• Fully tested and code listed - verified strength and durability give specifiers and builders confidence that installations meet recognized standards.
• Made in the United States - domestic manufacturing supports consistent quality and reliable availability for construction projects.

Why This Product

• Cuts labor costs in half on connector layout - because a single PFUDS24 supports two ceiling joists at once, post-frame builders can install half as many hangers versus using individual face-mounted options, directly reducing time and labor on every truss bay.
• Built-in alignment means fewer measurement errors - the continuous saddle seat positions components automatically under the truss bottom chord, so installers spend less time checking plumb and alignment during the layout process.
• One product, two installation configurations - the perforated split feature means you do not need separate SKUs for two-sided and one-sided applications; a single PFUDS24 can be used as-is or separated in the field to serve either scenario.
• Stronger and more predictable than toe-nailing - the load-rated, code-listed connection outperforms traditional toe-nailed ceiling joists in tension, making it a more reliable structural choice for diaphragm ceiling panels and truss bracing applications.

Specifications

• Brand: Simpson Strong-Tie
• Part Number: PFUDS24
• 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)