You may also like
Ives COR7G/COR9G Brass Gravity Door Coordinator with Field-Adjustable Operation
Model: IVE-COR7G/COR9G
Ives COR7G/COR9G Brass Gravity Door Coordinator with Field-Adjustable OperationProfessional Gravity-Operated Door Sequencing SolutionThe Ives COR7G/COR9G Brass Gravity Door Coordinator ensures proper...
Ives
Starting at
$111.00
$52.12
ROCKWOOD 576 Gravity Door Coordinator
Material: Cast brass;
Finishes: UD26D;
Fastner: Body: 2 ea. #10 x 1" FH SMS, 2 ea. #10 - 24 x 1" FH MS; Strike: 5 ea. #8 x 1" FH SMS
Other:
- For use on door sizes:
- with Astragal on active door – 18" to 48"
- with Astragal on inactive door – 18" to 34"
- with Astragal on both doors – 18" to 30" - The overlap of the astragal is maximum 7/8" with door hung on standard hinges. Customer must contact the factory for all other astragal situations
Features: Non-handed reversible. Prevents the active door from closing until the inactive door is closed.
ROCKWOOD OVERVIEW
Rockwood products are normally used on all types of institutional buildings, offices, retail, educational, detention, sports facilities, hotel and restaurant, and finer residences.
ENVIRONMENTAL MANAGEMENT
ASSA ABLOY is commited to protecting the quality of the environment as well as the health and safety of its employees, customers, and the community. Please see our Environmental Health and Safety Policy for details on how we are dedicated to this commitment.
RESOURCES & DOWNLOADS
Manufacturer Resources
Product Specs
- Product Group:
- Door Controls
- Fasteners:
- Body: 2 ea. #10 x 1" FH SMS, 2 ea. #10 - 24 x 1" FH MS, Strike: 5 ea. #8 x 1" FH SMS
- Subcategory:
- Bolts and Latches
- Product Subgroup:
- Door Coordinators
- Product Type:
- Door Coordinators
- ANSI/BHMA:
- ANSI A156.3, Type 21
- Commercial/Residential:
- Commercial
- Product Model:
- 576
- Door Strike:
- 7"
- Product Category:
- Door Controls
- Department:
- Door Hardware
Rockwood ROC-576-US26D – Frequently Asked Questions
1) How does the Rockwood 576 door coordinator work on a pair of doors with an astragal?
The 576 is a gravity coordinator: it holds the active leaf open until the inactive leaf has closed, so the astragal ends up on the correct side and the pair closes in the right sequence. That's the whole point of a coordinator on a pair with an overlapping astragal, where the two leaves would otherwise foul each other if the active door beat the inactive one shut. It's non-handed and reversible, so one part covers left- or right-hand pairs.
2) My astragal overlaps more than 7/8 inch. Will the Rockwood 576 still work?
No. The 576 gravity coordinator is rated for an astragal overlap of 7/8 inch maximum with the doors hung on standard hinges. Anything beyond that, or any non-standard hanging arrangement, is outside what the coordinator is set up for and Rockwood asks that the factory be contacted for those situations. If your overlap is greater, a bar-type coordinator such as the ABH 3700 Series full bar coordinator or the Ives COR Series aluminum bar coordinator is the different mechanism to look at.
3) Does the Rockwood 576 meet an ANSI standard for door coordinators?
It's built to ANSI A156.3, Type 21. That's the auxiliary hardware designation a spec writer or institutional buyer will be looking for on the drawing, so if the submittal calls for an A156.3 Type 21 coordinator, the 576 answers it directly. It's a commercial-duty product, cast brass body.
4) I'm replacing a coordinator on a fire rated pair. Is the Rockwood 576 the right part?
The 576 is a cast brass gravity coordinator built to ANSI A156.3, Type 21, for commercial openings. If your specification requires a UL listed coordinator for a fire door assembly, look at the units ZenSupply carries that carry that listing outright: the ABH 3700 Series full bar coordinator is UL listed and fire door compatible, the Ives COR Series aluminum bar coordinators and the Ives COR7G/COR9G brass gravity coordinator are fire rated, and Trimco's 3092 retracting arm and 3094 stop mounted coordinators are UL units. Match the listing to what the door assembly's label requires.
5) What is the closest gravity door coordinator to the Rockwood 576?
The Ives COR7G/COR9G is the direct counterpart. Like the Rockwood 576, it is a brass gravity coordinator, and the Ives version is fire rated and offers field-adjustable operation. The Rockwood 576 is cast brass, non-handed reversible, holds the active door open until the inactive door closes, and meets ANSI A156.3, Type 21. Both work the same way on a pair of doors: gravity-driven, mounted at the astragal rather than a full-width bar across the frame soffit.
6) The opening is wider than 48 inches - what coordinator works instead of the Rockwood 576?
The Rockwood 576 is rated for door sizes of 18 to 48 inches with the astragal on the active door, and that range narrows to 18 to 34 inches with the astragal on the inactive door and 18 to 30 inches with astragals on both. Past those limits, go to a bar-type coordinator that spans the full opening: the Ives COR Series aluminum bar coordinators come in a range of bar lengths, or the ABH 3700 Series full bar coordinator with filler bar. Both are fire door compatible, so they suit a labeled pair as well.
7) The astragal overlap on my pair is more than 7/8 inch - what coordinator handles that?
The Rockwood 576 is built around a maximum 7/8 inch astragal overlap with the doors hung on standard hinges. When the overlap or the hinge arrangement falls outside that, a coordinator that does not key off the astragal is the cleaner path: the Trimco 3092 UL retracting arm coordinator and the Trimco 3094 UL stop mounted coordinator sequence the leaves from the frame stop rather than from the astragal edge, as do the ABH 3700 Series full bar and the Ives COR Series aluminum bar coordinators.
8) Should I use a gravity coordinator or a bar coordinator on my pair of doors?
A gravity coordinator like the Rockwood 576 mounts at the door and works off the leaf itself, with a separate 7 inch strike. A bar coordinator runs a bar across the full width of the frame soffit and trips the active leaf mechanically. Bar types cover openings the gravity type can't, and they are what you look at when the astragal overlap or the leaf widths fall outside the gravity coordinator's range. ZenSupply carries both: the ABH 3700 Series full bar coordinator with filler bar, the Ives COR Series aluminum bar coordinators, and the Trimco 3092 retracting arm and 3094 stop mounted coordinators. Ives also makes a brass gravity coordinator, the COR7G/COR9G, with field-adjustable operation if you want a gravity unit you can tune on site.
9) Do I need to specify handing when ordering the Rockwood 576 coordinator?
No handing to call out. The 576 is non-handed and reversible, so the same part goes on a left-hand or right-hand pair. That matters if you're standardizing across a building: one stock number covers every pair regardless of swing, instead of carrying two.
10) Does the Rockwood 576 coordinator come with mounting screws, or do I need to supply them?
Fasteners are included for both pieces. The body ships with 2 each #10 x 1 inch flat head sheet metal screws and 2 each #10-24 x 1 inch flat head machine screws, and the strike ships with 5 each #8 x 1 inch flat head sheet metal screws. The machine screws are there for tapped frame conditions and the sheet metal screws for hollow metal, so you have both options in the box without a second trip.
11) What's the closest alternative to the Rockwood 576 gravity coordinator if I want one I can adjust in the field?
The Ives COR7G/COR9G is the nearest equivalent, a brass gravity coordinator with field-adjustable operation. Same mechanism family and same brass construction as the 576, with the adjustment made on site rather than fixed. If you'd rather move away from gravity entirely, Trimco's 3092 is a retracting arm coordinator and the 3094 is stop mounted, both different mounting approaches to the same sequencing problem.
12) Do I need a coordinator if my pair of doors has no astragal?
Coordinators exist to fix a sequencing problem created by an overlapping astragal or a mortise lock strike on the inactive leaf. The Rockwood 576's whole function is holding the active leaf open until the inactive one closes, and its size ranges are all defined by where the astragal sits, from 18 to 48 inches with the astragal on the active door down to 18 to 30 inches with an astragal on both. On a pair with no astragal and nothing on the inactive leaf for the active leaf to hit, there is nothing for the coordinator to sequence.
13) What is the difference between a gravity coordinator like the Rockwood 576 and a bar coordinator?
The Rockwood 576 is a gravity coordinator: a compact cast brass body plus a 7 inch strike, non-handed and reversible, mounted at the meeting stiles so the active leaf is held until the inactive leaf closes. A bar coordinator such as the ABH 3700 Series with filler bar or the Ives COR Series aluminum bar units runs a horizontal bar across the full width of the frame soffit and trips off the inactive leaf as it swings past. The bar type scales with opening width; the gravity type keeps the frame soffit clear and installs with two body screws plus five strike screws.
14) Can I standardize a facility on one coordinator across pairs of different widths?
Standardizing on the Rockwood 576 works where every pair falls inside its door size limits - 18 to 48 inches with the astragal on the active door, tightening to 18 to 34 inches with the astragal on the inactive door and 18 to 30 inches with astragals on both. It is non-handed and reversible, so one part number covers both hands. Where widths vary beyond that, the Ives COR Series aluminum bar coordinators are offered in a spread of bar sizes under one series, and the ABH 3700 Series uses a filler bar to make up the balance of the opening.
15) What finish does the Rockwood 576 coordinator come in?
One finish, US26D, satin chrome, over a cast brass body. If you're matching a building already standardized on satin chrome hinges and exit hardware, the 576 drops into that scheme without a special finish call-out. There is no other finish choice to make on this model, so the order is a single line.
16) How much of the frame does the Rockwood 576 coordinator strike take up?
The strike is 7 inches, fastened with five #8 x 1 inch flat head sheet metal screws. Worth knowing before you lay out the opening, because that 7 inches of soffit has to be clear of anything else competing for the same space, an electric strike housing or a hold-open device on the inactive leaf being the usual conflicts. A bar coordinator, by contrast, runs the full width of the opening.
17) The frame soffit is crowded with a closer and a holder - which coordinator mounts elsewhere?
Bar coordinators occupy the full frame soffit, which is where surface closer shoes and electric holders usually land. The Rockwood 576 is a compact gravity unit mounted at the meeting stiles instead, with a body taking two screws and a 7 inch strike taking five. The Trimco 3094 UL stop mounted coordinator is another way off the soffit face, and the Trimco 3092 UL retracting arm coordinator folds its arm out of the way. The ABH 3700 Series full bar and the Ives COR Series aluminum bar units are the ones that need the clear soffit run.
18) Is a door coordinator the same as an astragal or a flush bolt?
No. The Rockwood 576 is the device that sequences the two leaves - it prevents the active door from closing until the inactive door is closed - and it is a cast brass body plus a 7 inch strike meeting ANSI A156.3, Type 21. An astragal is the vertical seal strip on the meeting stiles, and the 576 works around it: 18 to 48 inch doors with the astragal on the active leaf, down to 18 to 30 inches with astragals on both, and a maximum 7/8 inch overlap. A flush bolt holds the inactive leaf shut. All three can appear on the same pair, and the coordinator does not replace either.
How fast can I get the Rockwood ROC-576-US26D 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 Rockwood ROC-576-US26D come with a warranty?
Absolutely. The Rockwood ROC-576-US26D 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 Rockwood ROC-576-US26D?
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 Rockwood ROC-576-US26D 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.