Rockwood 409 Concave Wrought Wall Stop, 1" Projection, 2-1/2" Diameter, Plastic Toggle Fastener

The 409 ships with a plastic toggle plus a #8 x 1-1/4 inch truss head sheet metal screw, so it mounts into hollow drywall without blocking. The toggle spreads the load behind the board and the back plate spreads it on the face, which is what keeps the knob from punching through. If you do have solid blocking or a stud where the knob lands, use the screw into the wood and skip the toggle.

Projection is 1 inch. That is enough to keep a flat knob or a lever rose off the wall, but a long lever handle or a thumbturn that sticks out past 1 inch will still make contact. Measure from the wall face to the furthest point of the trim on the door. If you need more standoff than an inch, a longer wall stop is the answer, and the ABH RM Series wall stops are sold in multiple length options.

Yes. The 409 is an ANSI/BHMA A156.16 product with the type designation L02251, which is the standard's code for a wall-mounted door stop. On a hardware schedule you can call it out by that L-number and the spec writer will accept it without further description. That matters on institutional and government work where the door hardware schedule is written to A156.16 rather than to brand names.

The 409 is accepted by the New York State Office of Mental Health for use in high risk areas. That acceptance is the reason this particular stop shows up on behavioral health, detention and secure-unit schedules: the mounting is concealed, so there is no exposed screw head to pick at and no obvious ligature point on the assembly. It is a commercial-grade item, not a residential one.

A stop and a holder are two different parts. The 409 stops the door at the wall and cushions it, nothing more, so the door swings back closed freely. If you need the door to stay open, you want a wall holder: the Ives WS20 is a manual wall holder with a hinged strike, and the Ives WS40 is an automatic wall holder with a heavy duty bumper pad. Note that a holder will not work on a fire rated opening that has to self-close and latch.

No. The 409 is a wall-mounted stop and needs solid wall directly behind the point the door trim reaches. If the swing ends at a corner, an open return, or a glass panel, mount a floor stop instead, or use a hinge-mounted stop or an overhead stop. Do not try to make a wall stop work by moving it off the strike point; it will catch the door face and dent it.

The Ives WS33/WS33X is the nearest cross-brand match to the Rockwood 409. Both are wall-mounted stops with a rubber bumper, and the Ives WS33/WS33X is a heavy-duty wall door stop with a replaceable rubber bumper. The Rockwood 409 uses a concave wrought back plate with a convex bumper and concealed mounting, and ships with a #8 x 1-1/4 inch TH SMS and plastic toggle for hollow wall anchoring. The practical difference is the bumper: if a facility wants to swap out worn bumpers rather than replace the whole stop, the Ives WS33/WS33X calls out a replaceable bumper, while the 409 is specified as a cast unit with its bumper in place. Both are appropriate on commercial openings.

The Rockwood 409 is supplied with a #8 x 1-1/4 inch TH SMS and a plastic toggle, which is a hollow-wall anchor - it needs a cavity behind the finish to set. On a solid masonry or CMU wall there is no cavity for the toggle to spread into. The Ives WS11/WS11X is a heavy duty wall stop with a replaceable rubber bumper specified for drywall and masonry, so it covers the masonry condition directly. The Ives WS33/WS33X is the other heavy duty wall stop in the same family. On a job with a mix of stud-framed and masonry walls, buyers commonly run the 409 where the toggle works and the Ives WS11/WS11X where the wall is solid.

No. The Rockwood 409 is a wall stop - a 1 inch projection concave wrought plate with a bumper that arrests the door leaf and nothing more. To hold the door in the open position, the part is a wall holder. The Ives WS20/WS20X is a manual wall holder with a hinged strike for drywall and masonry applications, meaning someone drops the strike by hand to catch the door. The Ives WS40 is an automatic wall holder with a heavy duty bumper pad, which catches the door without a separate action. Buyers often specify a stop like the 409 on most openings and a holder only where the door needs to stand open, such as a loading or corridor door.

A wall stop like the Rockwood 409 only works when the door leaf reaches a wall within its 1 inch projection. Where the wall is out of reach or the strike point lands on glass, a millwork edge, or an outlet, the part changes to a floor-mounted stop. The Delaney 3 inch HD rigid door stop is the fixed floor option, and the Delaney 3 inch spring door stop is the flexible option, which absorbs the swing rather than stopping it dead. Both mount to the floor instead of the wall, so the anchoring changes entirely from the 409's plastic toggle.

The Rockwood 409 is fixed at a 1 inch projection, which suits openings where the leaf meets the wall close in - typically where base or trim is thin. Where the door needs to be caught further off the wall, the ABH RM Series and ABH RMS Series wall door stops are offered with multiple length options, so the projection is selected to the condition rather than fixed. This matters most where a deep base, a chair rail, or a thermostat sets the strike point away from the finished wall surface. Measure from the wall face to the point on the door that would contact it before choosing.

The Rockwood 409 is the one to specify: it is accepted by the New York State Office of Mental Health for use in high risk areas, and it uses concealed mounting with a back plate that prevents damage to the wall. It carries ANSI A156.16, L02251. Among the cross-brand options, the Ives WS20/WS20X and Ives WS40 are wall holders that add a hinged strike or a projecting bumper pad, and the ABH RM Series is offered in multiple lengths - all of which put more hardware into the room. On a high risk opening, the concealed-fastener, low-projection 409 is the form that suits.

The 409 has a convex rubber bumper, meaning the rubber face crowns outward. A convex face is what you want against a concave or dished knob, since the two nest and the knob does not slide off the rubber. If what is coming at the wall is a flat lever rose or a flat-faced knob, a flat or concave bumper seats better. The Delaney 2-1/4 inch concave wall bumper is the concave-face option.

No. The 409 uses concealed mounting, so the fastener sits behind the bumper and nothing shows on the face after install. Two practical consequences: the finish reads clean on a lobby or guest room wall, and there is no screw head exposed for someone to work at in a secure area. Stops with an exposed through-screw are quicker to service but they show.

The Ives WS11 and the Ives WS33/WS33X are both heavy duty wall stops with replaceable rubber bumpers, and the WS11 is listed for drywall and masonry. Replaceable bumper is the difference worth weighing in a corridor or a dorm: when the rubber finally tears out, you change the bumper instead of pulling the whole stop and patching the wall. The 409 is cast brass with a rubber bumper and mounts concealed, which is what puts it on secure and finished-space schedules instead.

Mounting hardware comes with it: a #8 x 1-1/4 inch truss head sheet metal screw and a plastic toggle, one set per stop. Nothing else is required for a standard drywall install. For masonry or CMU you will need your own anchor rated for the substrate, since the plastic toggle is a hollow-wall fastener and will not set in solid block.

The Rockwood 409 is offered in 626 satin chrome, 625 bright chrome, 630 satin stainless steel, 605 bright brass, 606 satin brass, and 613E oil rubbed bronze equivalent, so a standardized building finish is generally covered from one part number. The Emtek 2255 is a brass wall bumper with a regular rosette, which is the alternative where the look is being matched to decorative trim rather than to an architectural finish number. For a fleet standardization program, keeping one model across every door and varying only the finish code is the simpler path.

Cast brass body with a rubber bumper. Brass does not rust, so the base metal is sound in a pool corridor, a locker room, or a coastal building. The finish is the thing to pick carefully in those spaces: 630 satin stainless steel and 626 satin chrome hold up to cleaning chemicals and hand contact better than a bright plated brass finish, which will show wear and water spotting sooner.