Sargent 12-HD980 Heavy Duty Fi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,617.33
$1,286.27
Sargent 12-HD980 - Fire Listed Mullion, Steel, 120", Heavy Duty, Gray Prime Coat Finish

Sargent 12-HD980 Heavy Duty Fire Rated Steel Mullion 120" Grade 1 with Gray Prime Coat

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Model: 12-HD980 GRAY 120
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,617.33
$1,286.27
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Sargent Heavy Duty Fire Rated Steel Mullion 120" Grade 1 with Gray Prime Coat

Professional Fire-Rated Mullion Solution for Commercial Applications

The Sargent Heavy Duty Fire Rated Steel Mullion provides essential structural support and fire protection for commercial door openings. This Grade 1 rated mullion features robust steel construction with 120" standard height and gray prime coat finish, designed for demanding commercial applications requiring fire-rated performance. ULC listed for code compliance, this rectangular mullion delivers reliable performance in critical fire safety applications.

Professional Features & Benefits

  • Standard Height: 120" length provides full-height coverage for standard commercial door openings and fire-rated assemblies.
  • Heavy-Duty Steel Construction: Durable steel material ensures long-lasting performance and structural integrity in high-traffic commercial environments.
  • Grade 1 ANSI/BHMA Rating: Meets the highest commercial-grade standards for durability and performance in demanding applications.
  • Fire-Rated Performance: Fire rated construction provides essential fire protection and code compliance for commercial fire door assemblies.
  • ULC Listed Certification: ULC listing ensures compliance with fire safety codes and building requirements for commercial installations.
  • Gray Prime Coat Finish: Factory-applied gray prime coat provides corrosion protection and prepares surface for field finishing as required.
  • Rectangular Profile: Standard rectangular shape integrates seamlessly with commercial door frames and fire-rated assemblies.
  • Manufacturer Warranty: 1-year limited warranty provides added confidence and protection for commercial installations.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

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 Sargent Quality?

Sargent mullion products deliver professional-grade reliability with heavy duty steel construction rated to Grade 1 ANSI/BHMA standards for demanding commercial applications. ULC listed for fire safety compliance with 1-year limited warranty coverage. Engineered for demanding commercial applications where dependable fire protection and structural performance are essential.

Product Specs

Product Group:
Exit Devices and Trim
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Type:
Mullions
Commercial/Residential:
Commercial
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Sargent 12-HD980 GRAY 120 – Frequently Asked Questions

1) What is a removable mullion like the Sargent 12-HD980 used for on a pair of doors?
A mullion stands vertically in the center of a double-door opening so each leaf can carry a rim exit device instead of vertical rods. The Sargent 12-HD980 is a heavy duty steel mullion, 120 inches tall, fire rated and ULC listed, so it can be used in a fire-rated pair. If you would rather avoid a center post entirely and need the full clear opening, that is when you go to surface or concealed vertical rod devices on each leaf instead.
2) Will the Sargent 12-HD980 mullion work in a fire-rated double door opening?
Yes. The 12-HD980 is fire rated and ULC listed, which is what a fire door assembly with a pair of doors requires when you are using rim exit devices on both leaves. It also carries a Grade 1 ANSI/BHMA rating.
3) What is a comparable Grade 1 mullion to the Sargent 12-HD980 if I am standardizing on a different manufacturer?
The Sargent 12-HD980 is a heavy duty steel mullion rated Grade 1 to ANSI/BHMA, 120 inches tall, fire rated and ULC listed, with a gray prime coat finish. The closest peer by rating is the Stanley Security QRM111, a Grade 1 mullion in the QRM100 Series. The Stanley QRM311 in the QRM300 Series is also a Grade 1 mullion. Both share the Grade 1 commercial rating, so for an opening where the grade is the governing requirement either family answers the spec. Where the opening is part of a fire rated assembly, the 12-HD980 carries the fire rated, ULC listed construction, so confirm the listing status of any Stanley substitute against the door assembly label before swapping.
4) My opening is not fire rated. Do I still need the Sargent 12-HD980, or is a standard mullion enough?
The 12-HD980 is a fire rated, ULC listed heavy duty steel mullion, so it covers both fire rated and non rated pairs. On an opening with no fire rating, a standard Grade 1 mullion such as the Stanley Security QRM111 in the QRM100 Series or the QRM311 in the QRM300 Series meets the same commercial Grade 1 durability requirement without the fire listing. Choose the 12-HD980 when the pair sits in a labeled fire door assembly or when you want one mullion standardized across both rated and non rated openings in the building.
5) Will a Stanley QRM111 mullion work with Sargent exit devices already on my doors?
Treat it as a separate system rather than a drop in substitute. The Stanley Security QRM111 is a Grade 1 mullion in the QRM100 Series and is prepped for the Stanley device family; the Sargent 12-HD980 is the steel mullion engineered to the Sargent side, in a 120 inch height with gray prime coat. Mullion strike and keeper preparation is specific to the device it serves, so on a pair already carrying Sargent exit devices the 12-HD980 keeps the strike geometry and, on a labeled opening, the fire rated ULC listed status consistent.
6) Is 120 inches the only height the Sargent 12-HD980 mullion comes in?
The 12-HD980 is supplied at 120 inches in gray prime coat. That length covers standard commercial openings and is cut or set to the frame height during install; for an 8-foot opening you have plenty of material to work with.
7) Does the mullion come with the exit devices or strikes I need?
No. The 12-HD980 is the mullion itself, an installation accessory for the opening. The rim exit devices for each leaf and their mullion-mounted strikes are ordered separately, along with the top and bottom frame fittings that anchor it.
8) What is the difference between the Stanley QRM111 and QRM311 mullions?
They are two separate Stanley Security mullion families. The QRM111 belongs to the QRM100 Series and the QRM311 belongs to the QRM300 Series; both are Grade 1 mullions. If you are cross referencing either against a Sargent 12-HD980 opening, match the series to the exit device family already installed on the doors, since mullion and device families are engineered as a set.
9) Can I paint a gray prime coat mullion to match my frames?
That is what the prime coat is there for. The factory gray primer on the 12-HD980 protects the steel in transit and storage and is meant to be field finished, so you can paint it to match the hollow metal frame color on the rest of the opening.
10) Is the Sargent 12-HD980 mullion suitable for a high traffic commercial building?
It is built for it. Heavy duty steel construction with a Grade 1 ANSI/BHMA rating, the top commercial tier, and it is specified for commercial rather than residential use. Typical placements are offices, schools, hospitals, retail, warehouses, multi-tenant residential and government buildings.
11) I need the mullion painted to match the frames. Does that change which one I should order?
The Sargent 12-HD980 ships with a factory applied gray prime coat, which protects the steel in transit and storage and is intended to be field finished, so it takes a topcoat to match frame color without extra prep. The Stanley Security QRM111 and QRM311 are catalogued as standard Grade 1 mullions by series rather than by a prime coat finish, so confirm the finish you are getting before scheduling the painter. For a job where every mullion is being painted on site, the primed 12-HD980 is the straightforward choice.
How fast can I get the Sargent 12-HD980 GRAY 120 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sargent 12-HD980 GRAY 120 come with a warranty?
Absolutely. The Sargent 12-HD980 GRAY 120 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sargent 12-HD980 GRAY 120?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Sargent 12-HD980 GRAY 120 from ZenSupply?
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