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Stanley Security QRM113 - Grade 1 Mullion, Fire Rated
The Stanley QRM113 is a commercial grade, fire-rated mullion designed for use with pairs of doors fitted with rim exit devices. Built to Grade 1 standards, this mullion is keyed-removable for ease of maintenance or access, and is pre-prepped for compatibility with Stanley’s QED100 and QED300 Series exit devices. Available in multiple finishes including primer, aluminum painted, and dark bronze, and in lengths ranging from approximately 8 ft to 11 ft, the QRM113 is suited for applications requiring durability, fire compliance, and flexible installation
Specifications
| Specification | Details |
|---|---|
| Model | Stanley Security QRM113 – Keyed Removable Mullion |
| Grade / Certification | Grade 1; Fire-Rated (for standard heights) |
| Function | Keyed-Removable Mullion for double-door rim exit installations |
| Length / Heights Offered | Standard heights of 8 ft; variants up to 11 ft also offered. Field-sizable for openings of 8 ft, 9 ft, 10 ft, 11 ft, 12 ft. |
| Finish Options | Primer (600), Aluminum Painted (689), Dark Bronze Painted (695) |
| Fire Rating Height | Fire-Rated for up to 8 ft height mullions |
| Material & Construction | 2″ × 3″ steel tube with 1/8″ wall thickness (standard) |
| Special Feature | Keyed Removable (“KR”) design allows removal / portability of mullion for easier egress access or passage when needed |
| Compatible Exit Devices | Pre-prepped for Stanley QED100 and QED300 Series exit devices |
| Warranty & Finish Assurance | Standard Stanley warranty for commercial hardware (mechanical and finish) — confirm via specific finish SKU |
Manufacturer Resources
Product Specs
- Product Group:
- Exit Devices and Trim
- Series:
- QRM100 Series
- Product Subgroup:
- Exit Devices - Rim
- Product Type:
- Mullions
- Subcategory:
- Exit Devices
- Commercial/Residential:
- Commercial
- Product Category:
- Exit Devices and Trim
- Department:
- Door Hardware
Stanley Security QRM113 8 689 – Frequently Asked Questions
1) What does the Stanley QRM113 mullion do on a pair of doors with rim exit devices?
The QRM113 is a keyed removable mullion that stands between a pair of doors so each leaf can carry its own rim exit device and latch into the mullion instead of into the other door. Turn the key and the mullion lifts out, which opens the full width for moving equipment or furniture through. It is prepped at the factory for Stanley QED100 and QED300 Series rim devices.
2) Is the Stanley QRM113 mullion fire rated at every height?
Fire rating applies to the standard 8 ft height. The description states the QRM113 is fire rated for mullions up to 8 ft. The 9, 10, 11 and 12 ft sizes are offered, but the fire rating is called out for the 8 ft standard height, so on a rated opening specify the 8 ft.
3) What mullion lengths and finishes can I order for a Stanley QRM100 Series opening?
Lengths run 8, 9, 10, 11 and 12 ft, and each length comes in all three finishes: 600 primer, 689 aluminum painted, and 695 dark bronze painted. Every length is also offered both as keyed removable and as a fixed (non-removable) mullion, so those are the three choices you make on the order: height, finish, and removable or not.
4) Will the Stanley QRM113 work with exit devices from another manufacturer?
The QRM113 arrives prepped for Stanley QED100 and QED300 Series rim exit devices. If your leaves carry a different brand of rim device, the strike prep is the thing to sort out before ordering. For an aluminum-frame alternative, ZenSupply also carries the Sargent 980 Series removable mullion, a T-shape extruded aluminum mullion with an 86 in standard height.
5) My frame opening is taller than 8 feet. Can this mullion be cut to fit?
Yes. The QRM113 is field-sizable for openings of 8, 9, 10, 11 and 12 ft, so you order the length that covers your opening and trim it on site. Buy the size at or just above your frame height rather than stretching a shorter one.
6) Should I pick a keyed removable mullion or a fixed one?
Go keyed removable if the opening ever has to pass wide loads: beds, carts, pallets, furniture. The key releases the mullion and you carry it out of the way, then drop it back in. Choose the fixed version when the opening is purely for egress and nothing oversized moves through, since there is one less part to store and one less thing to lose. Both are offered in all five lengths and all three finishes.
7) How heavy duty is the Stanley QRM113 mullion tube?
It is a 2 in by 3 in steel tube with a 1/8 in wall as standard, built to Grade 1 for commercial traffic. That section is what takes the latching load from the rim devices on both leaves, which is why it holds up in schools, hospitals and other high-use openings.
8) Do I still need a mullion if I use vertical rod exit devices on my pair of doors?
No. Surface or concealed vertical rod devices latch at the head and threshold, so a pair can be secured with no center post at all. You use a mullion like the QRM113 when you want rim devices on both leaves instead, which is a simpler device with fewer moving parts to maintain, and you accept a post in the middle of the opening. The keyed removable version gets the post out of the way when you need clear width.
9) What is the difference between a steel mullion and an extruded aluminum one for exit device pairs?
It comes down to profile and material. The Stanley QRM113 uses a 2 inch by 3 inch steel tube with a 1/8 inch wall and is fire rated for mullion heights up to 8 feet. The Sargent 980 uses a T-shape extruded aluminum profile at an 86 inch standard height. The steel tube section gives a rectangular face that the QED100 and QED300 rim device strikes are pre-prepped into; the T-shape aluminum section presents a different strike face, so the mullion and the exit device line should be matched rather than mixed.
10) Both of these say removable - is that the same thing?
Both are removable mullions, meaning they lift out so the full opening can be cleared for moving equipment or freight. The Sargent 980 is described as a removable mullion. The Stanley QRM113 is offered in keyed-removable and non-keyed-removable configurations, so if you want removal restricted to a keyholder rather than available to anyone at the door, specify the keyed-removable option when ordering.
11) Which finish should I order if the mullion is getting painted to match the frame?
Order 600 primer. It ships ready for field paint so the mullion can be finished to the same color as the hollow metal frame. If you want it done from the factory, 689 is aluminum painted and 695 is dark bronze painted.
How fast can I get the Stanley Security QRM113 8 689 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 Stanley Security QRM113 8 689 come with a warranty?
Absolutely. The Stanley Security QRM113 8 689 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 Stanley Security QRM113 8 689?
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 Stanley Security QRM113 8 689 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.