Von Duprin 5547WDC-F-4ft Fire Rated Concealed Vertical Rod Exit Device for 4ft Narrow Stile Wood Doors, Less Dogging

Von Duprin 5547WDC-F-4ft Fire Rated Concealed Vertical Rod Exit Device for 4ft Narrow Stile Wood Doors, Less Dogging

Classic Crossbar Design with Concealed Vertical Rod Technology for Narrow Stile Wood Door Applications

The Von Duprin 5547WDC-F-4ft is a fire rated concealed vertical rod exit device from the renowned 55 Series, engineered specifically for single or double wood doors with narrow stiles as narrow as 4" (102 mm). Sized at 48" for 4-foot door applications, this device carries ANSI/BHMA A156.3, 2008 Grade 1 certification and meets ANSI/UL 10C fire rating requirements, making it a trusted solution for commercial facilities requiring code-compliant egress hardware. The 55 Series is particularly well-suited for retro-inspired architecture and historical buildings where a classic crossbar aesthetic is desired alongside modern performance standards.

Professional Features & Benefits

• Narrow Stile Compatibility: Designed to fit door stiles as narrow as 4" (102 mm), providing versatile installation options for wood doors where stile width is limited.
• Product Size & Dimensions: Available in a 48" (4ft) length that is field sizeable for single and double door applications; case dimensions of 7-1/4" x 1-1/4" x 2-1/4" for both hinge stile and lock stile cases, with a product projection of 3-3/4".
• Door Thickness & Fastener Compatibility: Accommodates 1-3/4" door thickness with included screw pack for 1-1/4" and 2-1/4" thick metal/wood doors, and a 1/2" latch throw for reliable latching performance.
• Fire Rated Construction: Certified to ANSI/UL 10C and CAN/ULC-S104 fire rating standards, with fire rating designation applied via the “-F” suffix configuration, ensuring compliance in fire-rated door assemblies.
• Grade 1 Certified Performance: ANSI/BHMA A156.3, 2008 Grade 1 certified and compliant with ANSI/UL 305 and CAN/ULC-S132, delivering the highest level of commercial exit device performance and reliability.
• Field Reversible Handing: Door hand direction is field reversible, allowing flexible installation to accommodate left- or right-hand door configurations without special ordering.
• Less Dogging Configuration: Supplied in a less dogging configuration, appropriate for fire-rated door assemblies where dogging is not permitted by code.
• Versatile Device & Trim Options: Compatible with multiple device types including concealed vertical rods (47), surface-mounted vertical rods (27), and mortise locks (75). Supports trim functions including Classroom, Dummy, Exit Only, Passage, and Storeroom, with popular 990 pull trim available in five standard functions.
• Optional Accessories & Electronic Upgrades: Supports optional E8875 electrified option for integration with access control, fire alarm, or remote switching systems; RX switch for door monitoring; and KN knurling on crossbars for tactile hazard warnings. Mullions, power transfers, and strikes also available.

Technical Specifications

• Product Group: Exit Devices and Trim
• Series: 55 Series
• Grade: Grade 1
• Fasteners: Screw pack for 1-1/4" and 2-1/4" thick medal/wood doors.
• Product Subgroup: Exit Devices - Vertical Rod
• Product Type: Exit Devices - Concealed Vertical Rod
• Subcategory: Concealed Vertical Rod Exit Devices
• Latch Throw: 1/2"
• Commercial/Residential: Commercial
• Stile Type: Narrow Stile
• Door Hand Direction: Field Reversible
• Door Thickness Range: 1-3/4"
• Product Size: 48"
• Dogging Configuration: Less Dogging
• Product Dimension: 7-1/4" x 1-1/4" x 2-1/4" (Hinge Stile Case), 7-1/4" x 1-1/4" x 2-1/4" (Lock Stile Case)
• Fire Rating: Yes
• Product Projection: 3-3/4"
• Product Style: Cross Bars
• Product Category: Exit Devices and Trim
• Department: Door Hardware

Professional Applications

• Commercial Office Buildings
• Educational Facilities and Schools
• Healthcare Institutions and Hospitals
• Retail Establishments
• Historical and Retro-Inspired Architecture
• Government and Municipal Buildings
• Multi-Tenant Residential and Mixed-Use Properties

Why Choose Von Duprin Quality?

Von Duprin concealed vertical rod exit devices are built to the highest commercial standards, with the 55 Series earning ANSI/BHMA A156.3, 2008 Grade 1 certification and compliance with ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132. The 5547WDC-F-4ft is engineered for demanding commercial applications where fire-rated egress performance, narrow stile compatibility, and classic crossbar aesthetics are all required. Backed by Von Duprin's reputation for professional-grade door hardware, this device delivers dependable, code-compliant performance in the most critical life-safety applications.