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ROCKWOOD OH100 Series Heavy Duty Concealed
Material: Stainless steel;
Finishes: US32D;
Fastner:
Jamb: 1/4 -20 x 3/4" FH MS or #14 x 1-1/2" FH WS
Door: 5/16-18 x 1-1/2" FH MS or #18 x 3" FH WS
Options:
- Doors may be single or double acting
- Non-handed
- Slide track design
- Recommended for high traffic, heavy abuse installations
- Heavy shock absorber spring provides 5-7° compression before deadstop
- Surface on/off knob on hold open models
- Complete screw packet for installation in wood and machine screws for door and frame
- For security areas, Torx® screws available for exposed fasteners.
- Durable slider cam and shock block
- 110° maximum opening
- 1-3/4" minimum door thickness, for thicker doors, note thickness when ordering
- 1-3/16" square channel
- Stop function UL listed for fire door assemblies
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
- Product Subgroup:
- Overhead Stops and Holders
- Product Type:
- Overhead Stops and Holders - Concealed Mount
- Subcategory:
- Stops
- ANSI/BHMA:
- ANSI A156.8, C01541
- Commercial/Residential:
- Commercial
- Product Model:
- OH102S
- Product Category:
- Door Controls
- Product Substrate:
- Stainless Steel
- Department:
- Door Hardware
Rockwood ROC-OH102S-US32D – Frequently Asked Questions
1) What door thickness does the Rockwood OH102S concealed overhead stop require?
Minimum door thickness is 1-3/4 inches, which is the standard commercial leaf. Thicker doors are accommodated, but you have to state the actual thickness when you order so the channel mortise and arm are built to suit. The channel itself is 1-3/16 inch square, so the door needs a mortise that depth across the top edge.
2) Do I have to order a left hand or right hand overhead stop?
No handing to specify. The OH102S is non-handed and works on single acting or double acting doors, so one part number covers both swings. That matters for a property manager stocking spares across a building.
3) What is the closest cross-brand equivalent to the Rockwood OH102S heavy duty concealed overhead stop?
The Rockwood OH102S is a heavy duty concealed-mount overhead stop in stainless steel with a 110 degree maximum opening and stop-only function. The closest cross-brand counterparts are the Norton Rixson 1 Series Checkmate, a heavy duty concealed stop and holder also rated to a 110 degree opening and listed as Grade 1, the Sargent 690 heavy duty overhead concealed stop/holder with ANSI Grade 1 compliance, the Glynn-Johnson 100 Series heavy duty concealed overhead holders and stops, and the ABH 1000 Series heavy duty concealed mount overhead door stop with fire rating. All four sit in the same heavy duty concealed-mount class, so the deciding factors are template match to the existing door and frame prep and whether you want stop-only or stop-and-hold.
4) I need the door to hold open, not just stop. What should I use instead of the Rockwood OH102S?
The Rockwood OH102S is the stop-only function of the OH100 series, so it deadstops the door and releases. For a hold-open on a concealed mount, look at the ABH 1000A, 1000RA or 1000SA Series, all heavy duty concealed mount stop and holder units with adjustable opening control, the Norton Rixson 1 Series Checkmate concealed stop and holder, the Sargent 690 heavy duty overhead concealed stop/holder, or the Glynn-Johnson 100 Series concealed holders and stops. Rockwood's own hold-open models in the series use a surface on/off knob to engage and release the hold.
5) Is there a lighter duty concealed overhead stop than the Rockwood OH102S for a low traffic office door?
The Rockwood OH102S is built for high traffic, heavy abuse installations. For openings that do not see that kind of use, the Don-Jo 3023 and 3024 are standard duty concealed overhead stops in satin stainless steel, sized for 30 inch and 36 inch doors respectively. The Glynn-Johnson 410 Series is a medium duty concealed overhead holder and stop, the Sargent 1530 is a medium duty concealed mount stop/holder with a 110 degree opening, and the DORMA 711F is a standard duty concealed friction stop for 21 to 27 inch door openings. These trade the OH102S heavy duty slider cam and shock absorber construction for a lighter mechanism.
6) What is the difference between a stop only and a stop and holder overhead unit?
The OH102S is stop only, so it arrests the door at the deadstop and the leaf swings back freely with no detent. Hold open versions in the Rockwood OH100 family add a surface on/off knob so you can park the door open. If you want hold open with adjustable opening control, peers like the ABH 1000RA or 1000SA and the Sargent 690 cover that function.
7) How far will the door open with the Rockwood OH102S installed?
110 degrees maximum. A heavy shock absorber spring gives 5 to 7 degrees of compression before the deadstop, so the door decelerates instead of slamming into a hard stop. If a wall or adjacent fixture sits inside that arc, the stop has to be set shorter in the track.
8) Does the Rockwood OH102S come with screws, and will they work on a hollow metal frame?
A complete screw packet ships with the unit, with both wood and machine screws for door and frame. Jamb fasteners are 1/4-20 x 3/4 inch flat head machine screws or #14 x 1-1/2 inch flat head wood screws; door fasteners are 5/16-18 x 1-1/2 inch flat head machine screws or #18 x 3 inch flat head wood screws. So hollow metal and wood openings are both covered out of the box. Torx screws are available for exposed fasteners in security areas.
9) Is a concealed overhead stop the right choice for a high abuse opening, or should I go surface mounted?
Concealed is what the OH102S is built for: slide track design, durable slider cam and shock block, stainless steel throughout, and recommended for high traffic, heavy abuse installations. The trade off is that the door top edge and the frame soffit both need mortising, so it is easier on a new door than a retrofit. If the doors are already hung and you do not want to mortise, a surface mounted heavy duty unit such as the Glynn-Johnson 70 Series or the extra heavy duty 79 Series applies to the face of the door and frame instead.
10) What are the heavy duty concealed alternatives to the Rockwood OH102S from other brands?
Several, and they differ mostly by function rather than mounting. The Glynn-Johnson 100 Series is a heavy duty non-handed concealed multi-function line, the Norton Rixson 1 Series Checkmate is a Grade 1 heavy duty concealed stop and holder with a 110 degree opening, and the Sargent 690 is a heavy duty concealed stop/holder with Grade 1 compliance. The ABH 1000 Series is a heavy duty concealed stop with a fire rating. For a lighter opening, the Glynn-Johnson 410 Series is medium duty and the Sargent 1530 is a medium duty concealed stop/holder.
11) For a fire rated opening, how does the Rockwood OH102S compare to other concealed overhead stops?
The Rockwood OH102S stop function is UL listed for fire door assemblies and the product is certified to ANSI A156.8 under C01541. Among concealed-mount peers, the ABH 1000 Series is a heavy duty concealed mount overhead door stop carrying a fire rating, and the Norton Rixson 1 Series Checkmate and Sargent 690 are both listed as Grade 1 heavy duty concealed units. On a fire door, confirm the specific labeled assembly allows the hardware before substituting, and remember that a hold-open on a fire door normally has to be an electrically released type.
12) We want one overhead stop standard across a building with both heavy and light traffic doors. Can we stay within one brand family alongside the Rockwood OH102S?
The Rockwood OH102S belongs to the OH100 heavy duty concealed series, which is non-handed and works on single or double acting doors, so one part covers both hands throughout the building. If you would rather standardize on a single competing family that spans duty levels, Glynn-Johnson offers the heavy duty 100 Series concealed alongside the medium duty 410 Series concealed, and Norton Rixson offers the heavy duty 1 Series concealed alongside the standard duty 10 Series with adjustable opening control. Sargent similarly pairs the heavy duty 690 with the medium duty 1530 concealed mount. Mixing duty levels within a brand keeps the trim appearance and service parts consistent.
13) Our drawing calls for a field adjustable stop position. Does the Rockwood OH102S do that, and what else should I look at?
The Rockwood OH102S is set for a 110 degree maximum opening with a heavy shock absorber spring that gives 5 to 7 degrees of compression before the deadstop. If the specification calls for the stop point to be adjusted in the field, the ABH 1000A Series offers field-adjustable opening control, and the ABH 1000RA and 1000SA Series both offer adjustable opening control in a heavy duty concealed mount. The Norton Rixson 10-336 provides adjustable opening control in a standard duty unit, and the Sargent 1530 is a concealed mount stop/holder with a 110 degree opening.
14) Is the Don-Jo 3024 a direct replacement for a Rockwood OH102S on a 36 inch door?
Both cover a 36 inch door in a concealed overhead stop and both are satin stainless steel, but they are not the same class of product. The Rockwood OH102S is a heavy duty unit with a durable slider cam, shock block and heavy shock absorber spring, recommended for high traffic and heavy abuse installations, and its stop function is UL listed for fire door assemblies. The Don-Jo 3024 is a standard duty concealed overhead door stop for 36 inch doors. On an interior door with light use the Don-Jo covers the function; on an abused opening or a labeled fire door, stay with the heavy duty unit. Channel and mortise dimensions differ between makers, so verify the existing door prep either way.
15) What finish does the Rockwood OH102S come in, and will it match my other stainless hardware?
One finish: 630 satin stainless steel, also called US32D. The body is stainless steel, not plated, so it holds up in wash down and coastal openings better than a plated finish. US32D is the usual commercial standard, so it matches typical satin stainless pulls, hinges and push plates.
16) Is the Rockwood OH102S rated for commercial use or is it a residential stop?
Commercial. It is classed as commercial door hardware and certified to ANSI A156.8 under C01541, which is the overhead stop and holder standard. Rockwood gear of this type turns up in schools, offices, detention, hotels and sports facilities.
How fast can I get the Rockwood ROC-OH102S-US32D delivered?
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Does the Rockwood ROC-OH102S-US32D come with a warranty?
Absolutely. The Rockwood ROC-OH102S-US32D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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