Rockwood 442 High Dome Stop

The Rockwood 442 is a high dome floor stop that protects walls and fixtures by halting the door at the floor before the handle or edge can hit them. A floor dome stop is a rounded bump mounted to the floor that the door strikes and rests against, and the 442 is the high dome version, standing 1-1/2" tall so it reaches doors that sit higher off the floor. It's built specifically for doors with thresholds or undercut doors, where a low stop would sit too far below the door bottom to make contact. The 442 is solid cast brass with a DuraFlex bumper, so it absorbs repeated impact and holds up in commercial traffic.

What the high dome does and when to use it

This is the key fit decision, so it's worth being clear. A door stop's job is to arrest the door's swing so the lever, knob, or door edge never slams into the wall or a neighboring fixture. A floor-mounted dome stop does that down low, at the floor, and the dome height has to match how far the door bottom sits off the floor.

The 442 is the high dome at 1-1/2" tall, which is what you need for doors with thresholds or undercut doors, doors that are raised higher off the finished floor. On those doors, a low dome stop would sit beneath the door and never make contact, so you step up to the high dome to reach the door bottom. If your door instead sits close to the floor without a threshold and is not undercut, the low dome 440 (1-1/8") is the correct choice. Matching dome height to the door's floor clearance is the whole trick to a clean, functional install.

Solid cast brass built for commercial traffic

The 442 is solid cast brass, not stamped or plated pot metal, so it's substantial and durable where lighter stops bend or work loose. The DuraFlex bumper is the contact surface that takes the door's impact, designed to absorb the hit quietly and resist tearing over thousands of cycles. It mounts with the included #12 x 1-1/2" flat head wood screw and plastic anchor, and the cast brass body comes in a full range of architectural finishes to match the room's other hardware. It meets ANSI/BHMA A156.16 (L02161), the standard for auxiliary builders hardware like door stops.

Rockwood 442 specifications

• Type: High dome floor stop (door bumper).

• Application: For doors with thresholds or undercut doors (doors raised higher off the floor).

• Height: 1-1/2". Base: 1/2"h x 1-7/8" diameter.

• Material: Solid cast brass with DuraFlex bumper.

• Fastener: #12 x 1-1/2" flat head wood screw with plastic anchor (included).

• Standard: ANSI/BHMA A156.16, L02161.

• Finishes: US3 bright brass, US10 satin bronze, US10B oil rubbed bronze, US26 bright chrome, US26D satin chrome.

• Part number: 442.

Why choose the Rockwood 442

Rockwood is a long-established commercial builders hardware brand, and the 442 is a dependable, value-priced floor stop for protecting walls and finishes on higher-clearance doors. You get solid cast brass construction, a DuraFlex bumper that takes repeated impact, easy single-screw mounting, and finishes to match the rest of the opening, all to the ANSI A156.16 standard. For offices, corridors, classrooms, and any door with a threshold or undercut that needs a taller stop, the 442 is a simple, durable choice.

One thing to confirm before ordering: the 442 is the high dome version (1-1/2") for doors with thresholds or undercut doors. If your door sits close to the floor without a threshold and is not undercut, choose the low dome 440 (1-1/8") instead. If you need to raise the contact point further, Rockwood offers risers as well. Choose your finish to match the room's other hardware.

Order the Rockwood 442 from American Locksets

We stock the full Rockwood floor stop line from authorized distribution, so every stop ships with the manufacturer warranty. Compare dome heights and styles in the Rockwood floor stops category, see all floor stops, or browse all door stops and holders.