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ROCKWOOD 485 Door Stop with Keeper
Material: Solid cast brass with rubber bumper;
Finishes: Available in standard architectural finishes;
Features:
• Uses replacement bumper 461B
• Heavy duty and ideal for use on heavy doors or in high traffic areas
Options:
• Rubber bumper available in standard gray or optional black.
• Exterior pack screw packs, stainless steel plated to match — use EXP suffix (485 x EXP) when ordering.
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 Trim and Accessories
- Fasteners:
- 5/16 - 18 x 13/4" stud, anchor, #12 x 1-1/4" FH WS, plastic anchor, Keeper: 2 ea. #10 x 1" FH SMS
- Subcategory:
- Stops
- Product Subgroup:
- Door Stops, Holders, Silencers & Bumpers
- Product Type:
- Door Stops - Floor
- ANSI/BHMA:
- ANSI A156.16, L01371
- Commercial/Residential:
- Commercial
- Product Model:
- 485
- Product Dimension:
- 1-5/8" x 2-5/8"
- Product Height:
- 3"
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Rockwood ROC-485-US26D – Frequently Asked Questions
1) What does the keeper on the Rockwood 485 floor stop actually do?
The keeper is a small floor-mounted catch that the door engages, so the 485 works as a hold-open, not just a bumper. The gooseneck stop mounts to the door and the keeper mounts to the floor with 2 each #10 x 1 inch flat head sheet metal screws, which come in the pack. If you only need the door stopped and not held open, a plain dome or bumper style like the Ives FS13 brass floor dome stop covers that without the second piece to lay out and fasten.
2) How high does the Rockwood 485 gooseneck stop sit off the floor?
3 inches tall, with a 1-5/8 x 2-5/8 inch base footprint. The height is the whole point of a gooseneck: it reaches up past thick carpet, mats, or a raised threshold to meet the door face, where a low dome stop would sit under the door and miss. If the floor covering is thin and the door swings over hard flooring, a low-rise dome such as the Orca 23LP is the shorter alternative.
3) Is the Rockwood 485 floor stop heavy enough for a high traffic commercial door?
It is built for it. Solid cast brass body with a replaceable rubber bumper, rated commercial, and certified to ANSI A156.16 under function number L01371. Cast brass rather than a stamped or zinc body is what holds up when a heavy door is thrown into the stop dozens of times a day in a school corridor or apartment lobby.
4) Can you replace just the rubber tip on a Rockwood 485 instead of the whole stop?
Yes. The bumper is a serviceable part, number 461B. When the rubber flattens out or tears, order the 461B and swap it rather than pulling the anchor and re-drilling the floor. For a property manager running a lot of openings, that is the difference between a bin of spare tips and a maintenance call per door.
5) What is the difference between a gooseneck floor stop and a dome floor stop?
Height and where the door hits it. A gooseneck like the Rockwood 485 stands 3 inches up and curves over to meet the door face, so it clears carpet and reaches doors with a large undercut. A dome stop sits low and takes the strike near the bottom of the door, which is cleaner underfoot but useless over thick floor covering. Dome options include the Ives FS17 heavy duty brass dome stop and the Emtek 2251 half dome. If you want a hold-open too, the gooseneck 485 with its keeper does that; a plain dome does not.
6) What is the closest gooseneck floor stop to the Rockwood 485 if I need one for a different brand package?
The Rockwood 485 is a 3 inch tall gooseneck floor stop with a keeper, cast brass with a rubber bumper, and it meets ANSI A156.16 L01371. The closest same-shape alternatives are the Emtek 2253 Goose Style Door Stop, the Delaney Gooseneck Floor Door Stop, and the Orca Hardware 22HD Series Goose Neck Floor Stop with black tip, which is catalogued as a door holder and fits doors 1-3/8 inch or 1-3/4 inch thick. The Orca is the only one of the three that pairs the gooseneck with a stated door thickness range, so if you are matching an existing 1-3/4 inch door it is the direct shape-for-shape swap.
7) The door clears the floor by less than an inch, so a 3 inch gooseneck will not reach. What floor stop works instead?
The Rockwood 485 stands 3 inch tall, which needs an undercut deep enough for the gooseneck arm to meet the door face. Where the door sits close to the floor, a low dome stop is the substitution: the Orca Hardware 23LP Series is a low rise dome floor stop with a gray tip, the Ives FS13 and FS17 are heavy duty brass floor dome stops with rubber bumpers, and the Emtek 2254 floor door bumper measures 1-3/8 inch by 1-1/4 inch. All of these strike the bottom rail rather than reaching up to it.
8) Do the Deltana universal floor bumpers do the same job as the Rockwood 485 with keeper?
They stop the door but they do not hold it. The Rockwood 485 combines the gooseneck stop with a keeper, and the fastener pack includes two #10 x 1 inch flat head sheet metal screws specifically for that keeper. The Deltana UFB4505 at 1-1/2 inch, the UFBD3505 decorative 3-1/2 inch, the UFBP4505 pattern cap at 1-5/8 inch and the UFBS138 square at 1-3/8 inch are all solid brass floor bumpers, meaning the door contacts them and rebounds. If the specification on the drawing calls for hold-open, a bumper will not satisfy it no matter how the diameter matches.
9) What holds a door open automatically without someone kicking a keeper into place, unlike the Rockwood 485?
The 485 keeper is engaged by hand at the floor. For automatic engagement, the Ives FS40, FS41, FS42 and FS43 are automatic floor stops and holders with adjustable door-to-floor clearance, and the SOSS MDH is a magnetic door holder and stop measuring 3-5/16 inch by 1-3/4 inch. The Ives adjustable clearance matters where the floor covering changes between rooms; the SOSS magnetic unit holds by magnet rather than by a mechanical catch.
10) What do I need to order for a Rockwood 485 going outside or in a wet area?
Add the EXP suffix, ordered as 485 x EXP. That substitutes an exterior screw pack, stainless steel plated to match the stop finish, in place of the standard fasteners. Worth specifying for exterior entrances, pool decks, garages, or anywhere the floor gets washed down, since the fastener is what corrodes first, not the brass body.
11) What finishes does the Rockwood 485 floor stop come in?
Two: 613 satin bronze oil-rubbed and 626 satin chrome. 626 is the common commercial choice and will sit alongside satin chrome lever trim and hinges on the same opening; 613 suits darker bronze hardware in hospitality and finer residential work. If you are matching existing hardware in a building, match the BHMA number, not the description.
12) Is there an alternative to a floor mounted stop if I do not want to drill the floor?
A wall or magnetic holder avoids the floor penetration. The SOSS MDH magnetic door holder and stop, 3-5/16 x 1-3/4 inches, is a heavy duty option that catches and holds the door without an anchor set into the slab. The Rockwood 485 needs a hole in the floor for either its 5/16-18 stud and anchor or its #12 wood screw, so on post-tension slabs, radiant floor heat, or finished stone where drilling is not acceptable, go the magnetic route.
13) Will a Rockwood 485 keep a door propped open on its own?
Yes, that is what the keeper is for. The door is swung into the stop and engages the floor-mounted keeper to hold. It is a manual hold-open, so someone pushes the door into it and pulls it free. If you want the hold-open engaged and released from the top of the stop with a toe, and the door-to-floor clearance adjusted on site, the Ives FS40 / FS41 / FS42 / FS43 automatic floor stop and holder is the different mechanism to look at.
14) Is a gooseneck floor stop with a keeper a good idea in a detention or behavioral health area?
No. A gooseneck stands 3 inches proud of the floor and the keeper adds a second protruding piece, both of which are ligature and tamper points and a trip hazard in a secure corridor. For those openings look at a security floor stop such as the Ives FS18S/FS18L instead. The Rockwood 485 belongs in offices, retail, schools, hotels, and multi-family corridors where the door has real weight behind it and the floor is not a restricted environment.
15) I only need the door to stop, not to be held open. Is there a simpler part than the Rockwood 485?
The 485 carries a keeper, which is the floor-mounted catch that holds the door open, and it ships with two #10 x 1 inch flat head sheet metal screws for that keeper on top of the stop's own stud and anchor. If holding open is not part of the job, a bumper-only stop drops the keeper and its separate anchoring point: the Deltana UFB4505 is a 1-1/2 inch round universal floor bumper in solid brass, the UFBS138 is the 1-3/8 inch square version, and the Emtek 2251 is a half dome door stop. Each of those is a single mounting point at the floor.
16) For a detention or high-abuse corridor, is the Rockwood 485 the right floor stop or is there a more secure option?
The Rockwood 485 is a commercial-rated cast brass stop meeting ANSI A156.16 L01371, described as heavy duty and suited to heavy doors and high traffic. Where tampering rather than traffic is the concern, the Ives FS18S and FS18L are security floor stops at a heavy duty level, built for openings where the stop itself is a target. Both are floor-mounted; the difference is that the FS18 pair is purpose-built as a security stop while the 485 is a hold-open gooseneck.
17) If I want a floor stop with a replaceable bumper like the Rockwood 485, what else offers that?
The Rockwood 485 takes replacement bumper 461B, so the rubber tip can be swapped without pulling the stop off the floor, and the tip comes in standard gray or optional black. Among dome-style stops, the Ives FS13 is a heavy duty brass floor dome stop specified with a replaceable rubber bumper. That matters on high traffic openings where the rubber is the wear item and you would rather stock tips than whole stops.
18) Can I get the Rockwood 485 bumper in black instead of gray?
Both are offered. The rubber bumper comes standard in gray, with black as an option you call out when ordering. Black tends to disappear against dark flooring and dark base; gray is the default and is what you will get if you do not specify. Orca's 22HD gooseneck stop is another option that comes with a black tip.
19) Does the ANSI number on the Rockwood 485 matter for a spec job?
It does if the drawing calls out a function. The 485 is certified to ANSI A156.16 and carries function number L01371, which is the line an architect or MRO buyer writes into a hardware schedule. Quote that number back and the submittal goes through without a substitution request.
20) How much floor space does a Rockwood 485 take up when laying out a doorway?
The base measures 1-5/8 x 2-5/8 inches, so it is a small footprint set behind the door swing. Plan the anchor location off the door face, not the frame, since the gooseneck's 3 inch height means it contacts the door well above the floor line. Add the keeper location to the layout as well, since it is a separate piece fastened to the floor with its own two screws.
21) I am standardizing floor stops across a building and want one profile everywhere. How do the round and square bumper shapes compare?
The Rockwood 485 gooseneck has a 1-5/8 inch by 2-5/8 inch footprint at the floor. If you are standardizing on a bumper profile instead, the shapes divide cleanly: Deltana UFBS138 is square at 1-3/8 inch, while the UFB4505 is round at 1-1/2 inch, the UFBP4505 is round with a pattern cap at 1-5/8 inch and the UFBD3505 is a decorative round at 3-1/2 inch. Emtek splits the same way, with the 2257 as a 1-1/2 inch cylindrical floor bumper and the 2251 as a half dome. Picking one family keeps the anchor pattern and the look consistent across every opening.
22) Are the Delaney gooseneck and dome stops interchangeable with each other on the same opening?
They are different reaches. The Delaney Gooseneck Floor Door Stop is in the Gooseneck Door Stop series and rises to meet the door face the way the Rockwood 485 does at 3 inch tall, while the Delaney Dome Door Stop is a Dome Stop series unit that sits low and contacts the bottom of the door. Swapping one for the other changes where on the door the strike lands, so the door bottom condition, not the brand, decides which one goes in.
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Absolutely. The Rockwood ROC-485-US26D is backed by a manufacturer’s warranty.
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