Rockwood 403 Concave Solid Cast Wall Stop, 1" Projection, 2-7/16" Diameter, Plastic Toggle Fastener

The 403 ships with a #6 x 1-1/2 inch flat head sheet metal screw and a plastic toggle, so it can go into hollow drywall without blocking behind it. The toggle spreads behind the board and carries the impact load. If you're hitting a stud or solid masonry, you'd use the appropriate anchor for that substrate instead of the toggle. Mounting is concealed, so no exposed screw head shows once the bumper is on.

A one inch projection stop won't clear deep trim. For those openings look at a longer wall bumper such as the ABH RM or RMS Series, both of which are offered in multiple lengths, or a wall-mounted holder like the Ives WS20 if you also want the door to stay open. The 403 is the right call only when your lever, pull, or exit device trim projects less than an inch beyond the door face.

It's a commercial-grade stop, certified to ANSI A156.16 with the type designation L02251. Solid cast brass body with a rubber bumper, which is what holds up in schools, hospitals, offices, and hotels where a residential spring stop would be flattened in a season. For a facility standardizing on one stop across many openings, the A156.16 listing is the number your spec writer wants to see.

A wall stop like the 403 works when the wall behind the door is within swing range and you can anchor to it, and it keeps the floor clear for cleaning and wheeled traffic. It won't help you if the door swings into open space, or into a corridor where the wall is too far back for a 1 inch projection stop to catch it. In those cases a floor stop or an overhead stop is the correct part. Note also that the 403 stops the door, it does not hold it open. If you need the door parked open, a holder such as the Ives WS20 (manual, hinged strike) or the Ives WS40 (automatic) does that job instead.

A wall stop and a wall holder are different jobs. The Rockwood 403 is a wall stop with a 1 inch projection and a concave rubber bumper; it arrests the door at the wall and lets it swing back. To hold the door open, use the Ives WS20/WS20X, a manual wall holder with a hinged strike for drywall and masonry, which requires someone to engage and release it, or the Ives WS40, an automatic wall holder with a heavy duty bumper pad that catches the door on contact. The WS40 is rated light duty, so on a high-traffic opening the WS20/WS20X, rated heavy duty, is the sturdier choice. A holder also needs a mating strike or catch on the door face, which a plain stop like the 403 does not.

Six: 626 satin chrome, 625 bright chrome, 619 satin nickel, 612 satin bronze, 613 dark satin bronze, and BSP black suede powder coat. Pick the one matching your lever and hinge finish across the opening. 626 is the usual default on commercial institutional work; BSP is the one to take when the rest of the hardware is a flat black.

Different animals. The 403 is a solid cast brass wall stop that mounts on the wall and takes the door on a concave rubber bumper, certified to ANSI A156.16. A spring stop such as the Delaney 3 inch mounts to the base of the door or the baseboard and flexes on contact. Spring and rigid base stops (Delaney also lists a 3 inch HD rigid version) are cheaper and quicker on light residential doors, but they sit at floor level in the traffic path. On commercial openings the wall stop is the one that gets specified.

Yes. The Ives WS11/WS11X and the Ives WS33/WS33X are both heavy duty wall stops with a replaceable rubber bumper, so maintenance can renew the strike surface without disturbing the base or the wall anchor. That matters on a facility standard where the same stop is repeated across dozens of openings. The Rockwood 403 is a solid cast wall stop with a concave rubber bumper, designated commercial and meeting ANSI A156.16, L02251, which is the reference to cite when the specification is written to an ANSI function number.

Yes, in BSP black suede powder coat. That's a coating over the cast brass body rather than a plated finish, and it's the finish to specify when the levers, hinges, and pulls on the opening are a flat or matte black.