Publish Time: 2026-04-11 Origin: D&D HARDWARE
UL/cUL Listed • File No. R38013
Factory-direct UL listed fire rated door hinges certified to UL 10C — 3-hour fire protection for commercial fire doors. 21 certified sizes, two and four ball bearing options available.
UL/cUL Listed UL 10C · 3-Hour Fire Rated File No. R38013 21 Certified Sizes
Overview
A UL listed fire rated door hinge is a hinge that has been independently tested and certified by Underwriters Laboratories (UL) — one of the most widely recognised safety certification organisations in North America and globally — to perform under fire conditions for a specified duration.
For commercial fire doors in the United States, Canada, and international markets that follow North American standards, UL listing is the primary certification required for fire door hardware. A hinge that carries a UL listing has been tested under the UL 10C standard — the Positive Pressure Fire Tests of Door Assemblies — and has demonstrated the ability to maintain the fire door's integrity for a full 3 hours under positive pressure fire conditions.
D&D Hardware's UL listed fire rated hinges are certified under UL/cUL UL 10C with File No. R38013, covering 21 certified sizes in both two ball bearing and four ball bearing configurations. This breadth of certified sizes ensures that specifiers and contractors can find the correct UL-listed hinge for virtually any commercial fire door application — from standard interior corridor doors to heavy exterior entrance doors.
Why It Matters
In the United States and Canada, fire door assemblies must comply with NFPA 80 — Standard for Fire Doors and Other Opening Protectives. NFPA 80 requires that all hardware used on fire-rated door assemblies, including hinges, must be listed by a recognised testing laboratory such as UL. Installing non-listed hinges on a fire door is a code violation that can invalidate the entire fire door assembly's rating.
ⓘ NFPA 80 Compliance Requirement
NFPA 80 (Standard for Fire Doors and Other Opening Protectives) mandates that all hardware components installed on fire-rated door assemblies must be listed. This includes hinges. Using non-UL-listed hinges on a fire door assembly can result in failed inspections, insurance claim denials, and potential liability in the event of a fire incident. D&D Hardware's UL listed hinges ensure full NFPA 80 compliance for commercial projects in North America.
Product Types
D&D Hardware's UL listed fire rated hinges are available in two bearing configurations to suit different door weights, usage frequencies, and application requirements.
Two Ball Bearing (2BB)
Two ball bearing hinges are designed for standard-weight commercial fire doors. The dual ball bearing design reduces friction between the hinge leaves, ensuring smooth, quiet operation and extended service life in moderate-traffic environments. Suitable for interior corridor doors, office doors, and standard commercial fire door applications.
Available in thickness - 3mm/3.4mm/4.6mm
Four Ball Bearing (4BB)
Four ball bearing hinges are engineered for heavy-duty commercial fire doors, high-traffic entrances, and exterior fire door applications. The four-bearing design provides superior load distribution, preventing door sag and maintaining the critical fire door seal alignment over the door's full service life. Recommended for main entrance doors, stairwell doors, and any application where door weight exceeds standard parameters.
Available in thickness - 4.6mm/4.8mm
Product Specifications
All 21 sizes listed below are individually certified under UL/cUL UL 10C (File No. R38013). Each size is available in stainless steel 201, 304, or 316 with multiple finish options.
| Size (H × W × T) | Bearing Type | Application | |
| Two Ball Bearing (2BB) — Standard Weight - (All sizes are available in 2BB and 4BB options, and can be selected as per your requirements) | |||
| 1 | 4.0" × 3.0" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 2 | 4.0" × 3.5" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 3 | 4.0" × 4.0" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 4 | 4.5" × 4.0" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 5 | 4.0" × 4.0" × 3.4mm | 2 Ball Bearing | Standard Weight |
| 6 | 4.5" × 4.5" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 7 | 4.5" × 4.0" × 3.4mm | 2 Ball Bearing | Standard Weight |
| 8 | 5.0" × 3.0" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 9 | 4.5" × 4.5" × 3.4mm | 2 Ball Bearing | Standard Weight |
| 10 | 5.0" × 3.5" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 11 | 5.0" × 4.0" × 3.4mm | 2 Ball Bearing | Standard Weight |
| 12 | 5.0" × 4.0" × 3.0mm | 2 Ball Bearing | Standard Weight |
| 13 | 5.0" × 4.5" × 3.4mm | 2 Ball Bearing | Standard Weight |
| Four Ball Bearing (4BB) — Heavy Duty - (All sizes are available in 2BB and 4BB options, and can be selected as per your requirements) | |||
| 14 | 4.5" × 4.0" × 4.6mm | 4 Ball Bearing | Heavy Duty |
| 15 | 4.5" × 4.5" × 4.6mm | 4 Ball Bearing | Heavy Duty |
| 16 | 5.0" × 4.0" × 4.6mm | 4 Ball Bearing | Heavy Duty |
| 17 | 5.0" × 4.5" × 4.6mm | 4 Ball Bearing | Heavy Duty |
| 18 | 5.0" × 5.0" × 4.6mm | 4 Ball Bearing | Heavy Duty |
| 19 | 5.0" × 4.0" × 4.8mm | 4 Ball Bearing | Heavy Duty |
| 20 | 5.0" × 4.5" × 4.8mm | 4 Ball Bearing | Heavy Duty |
| 21 | 5.0" × 5.0" × 4.8mm | 4 Ball Bearing | Heavy Duty |
ⓘ Material options: Stainless Steel 201 / 304 / 316 | Finish options: SSS, PSS, PVD, Matte Black, AB, ORB | NRP (Non-Removable Pin) available | Custom sizes available upon request.
Why D&D Hardware
Applications
UL listed fire rated door hinges are required on all fire-rated door assemblies in the United States and Canada, as mandated by NFPA 80. Common applications include:
Commercial Office Buildings
Hospitals & Healthcare
Hotels & Resorts
Industrial Facilities
Schools & Universities
Stairwell & Corridor Doors
FAQ
What does UL 10C mean for a fire door hinge?
How can I verify D&D Hardware's UL listing?
What is the difference between UL and cUL listing?
Should I choose two ball bearing or four ball bearing UL hinges?
Does NFPA 80 require UL listed hinges on all fire doors?
What material and finish options are available for UL door hinges?
D&D UL listed hinges are available in stainless steel 201, 304, and 316. Finish options include Satin Stainless Steel (SSS), Polished Stainless Steel (PSS), PVD, Matte Black, Antique Brass (AB), and Rustproof Brass (RB). Non-Removable Pin (NRP) options are available for exterior and high-security applications. Custom finishes and packaging are available for OEM and large-volume orders.
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