Von Duprin 88F-4FT Fire Rated Wide Stile Crossbar Rim Exit Device, 4 Ft, Less Dogging

Von Duprin 88F-4FT Fire Rated Wide Stile Crossbar Rim Exit Device, 4 Ft, Less Dogging

Commercial-Grade Fire Rated Rim Exit Device for Wide Stile Single and Double Door Applications

The Von Duprin 88F-4FT is a fire rated, wide stile crossbar rim exit device engineered for demanding commercial applications on single and double doors with mullion. Designed for 4-foot (48") door widths with a 1-3/4" door thickness, this field-reversible device covers stock hollow metal doors with 86 or 161 cutouts and delivers a 3/4" latch throw for secure latching performance. Certified to ANSI/BHMA A156.3, 2008 Grade 1 and listed under ANSI/UL 10C (fire rated) and ANSI/UL 305, the 88F-4FT meets the most stringent commercial fire and life safety code requirements.

Professional Features & Benefits

• Fire Rated Certification: Listed under ANSI/UL 10C (fire rated) and CAN/ULC-S104 (fire rated), ensuring full compliance with fire door assembly requirements in commercial and institutional facilities.
• ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3, 2008 Grade 1 standards as well as ANSI/UL 305 and CAN/ULC-S132 for the highest level of commercial exit device performance.
• Wide Stile, 4 Ft (48") Coverage: Sized at 48" for wide stile door applications, with a product projection of 4-3/4" and case dimensions of 6" x 1-3/4" x 15/16" (Hinge Stile Case) and 8-1/4" x 2-3/4" x 15/16" (Lock Stile Case).
• 3/4" Latch Throw: Provides a positive, secure latch engagement for reliable door latching in high-traffic commercial environments.
• Field Reversible Design: Non-handed configuration allows the device to be field reversed, simplifying installation and reducing inventory requirements for contractors and facility managers.
• Less Dogging Configuration: Supplied without dogging hardware, making it ideal for fire-rated door assemblies where dogging is not permitted by code.
• Device Centerline at 39-13/16" from Finished Floor: Ergonomically positioned for ADA-compliant and code-appropriate exit device placement on commercial doors.
• Accessory & Option Compatibility: Compatible with E8875 electrified option (for access control, fire alarm, or remote switching integration), RX monitoring switch, and KN knurling option for tactile hazard warning on crossbars. Mullions, power transfers, and strikes also available.
• Mounting Fasteners Included: All necessary mounting fasteners are included for straightforward installation on compatible hollow metal door preparations.

Technical Specifications

• Product Group: Exit Devices and Trim
• Series: 88 Series
• Grade: Grade 1
• Device Centerline from Finished Floor: 39-13/16"
• Fasteners: All necessary mounting fasteners are included
• Product Subgroup: Exit Devices - Rim
• Subcategory: Rim Exit Devices
• Latch Throw: 3/4"
• Product Type: Exit Devices - Rim
• Commercial/Residential: Commercial
• Stile Type: Wide Stile
• Wood Door Compatible: No
• Door Hand Direction: Non-Handed
• Door Thickness Range: 1-3/4"
• Product Size: 48"
• Dogging Configuration: Less Dogging
• Product Dimension: 6" x 1-3/4" x 15/16" (Hinge Stile Case), 8-1/4" x 2-3/4" x 15/16" (Lock Stile Case)
• Fire Rating: Yes
• Product Projection: 4-3/4"
• Product Style: Cross Bars
• Product Category: Exit Devices and Trim
• Department: Door Hardware

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Von Duprin Quality?

Von Duprin rim exit devices are engineered to meet the most demanding commercial life safety standards, with the 88F Series earning ANSI/BHMA A156.3, 2008 Grade 1 certification and UL listings under ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132. The field-reversible, non-handed design and included mounting fasteners streamline installation, while the fire rated construction ensures compliance in applications where fire door integrity is critical. Trusted by commercial contractors and facility managers, Von Duprin exit devices deliver dependable performance in high-traffic environments where life safety is paramount.