Deltana DKV6R Door Knocker with Viewer, Victorian Rope

Center to center on the DKV6R is 3-7/8 inches, so it lands on an existing pair of mounting holes at that spacing. The unit is 6 inches overall and ships with its fasteners, one piece per box. If your old knocker had different hole spacing you'll be filling and re-drilling the door face, and because this model carries a viewer through the door there is also a bored hole through the door to line up.

The Delaney 6 inch Door Knocker with 160 Degree Viewer is the nearest match by size. Both are 6 inch knocker-viewer combination units. The Deltana DKV6R is solid brass with a 180 degree view range and a 3-7/8 inch center to center hole spacing, while the Delaney unit is a 6 inch knocker with a 160 degree viewer. If you are matching an existing 3-7/8 inch bore pattern on a door, the DKV6R spacing is the figure to check against the opening.

Step down to the Delaney 4 inch Door Knocker with 160 Degree Viewer. It is the same knocker-with-viewer concept in a 4 inch body, which fits openings where the Deltana DKV6R, a 6 inch unit with 3-7/8 inch center to center spacing, runs out of room on the stile. Measure the flat area on the door face before you commit, since the 6 inch plate needs the full height between the glass and the edge.

The built-in viewer gives 180 degrees, so you see the full face of the landing or porch, including someone standing tight against the door jamb rather than square in front of it. That is what separates it from narrower peepholes, which leave a blind wedge on each side.

Solid brass is the substrate, not a plating over pot metal or steel. Finishes are applied over that brass body, so the Victorian Rope knocker holds up on an exterior entry door where a zinc casting would pit. Brass is also why the polished and PVD versions can be maintained rather than replaced when they weather.

Nine finishes are offered: Polished Brass, PVD Polished Brass, Antique Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, and Paint Black. PVD Polished Brass is the one to specify for direct weather, since PVD is a hard vapor-deposited coating rather than a lacquer, and lacquered polished brass is what chalks and flakes first on a west-facing door. Oil Rubbed Bronze is a living finish and will lighten at the high spots of the rope detail over time.

Deltana lists the DKV6R as residential exterior hardware, which makes it a fit for apartment and condo unit entry doors rather than a commercial lobby or a fire-rated stair door. For a fleet of units, the value is that all nine finishes exist on the same 3-7/8 inch center to center and the same 6 inch body, so you can standardize the prep across every door and vary only the finish by building.

Both are 6 inch knocker-and-viewer combinations for a residential entry. The Delaney 6" Door Knocker with 160 Degree Viewer gives 160 degrees of view; the Deltana DKV6R gives 180 and is solid brass with a Victorian rope-edge casting. Delaney also does a 4 inch version with the same 160 degree viewer if the door has a narrow rail or you want a smaller footprint on a glass-adjacent stile.

No separate order. Each DKV6R comes one per box with its fasteners, and the viewer is integral to the knocker rather than a second part you buy and bore for. One hole through the door and the two mounting points at 3-7/8 inch centers finish the job.

They are the same style of combination unit in two body sizes: the Delaney 4 inch Door Knocker with 160 Degree Viewer and the Delaney 6 inch Door Knocker with 160 Degree Viewer. Size is the deciding factor, and both carry a 160 degree viewer. The Deltana DKV6R sits at the 6 inch size with a 180 degree view range, so if the wider field of view matters for identifying a visitor standing off to one side of the opening, that is the spec to compare.

The Deltana DKV6R Victorian Rope is offered in nine finishes, including PVD Polished Brass, Polished Brass, Antique Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, and Paint Black, all on a solid brass body. That spread is what lets you hold one part number across buildings with different existing hardware finishes. The Delaney comparables are the 6 inch and 4 inch Door Knocker with 160 Degree Viewer, matched by body size rather than by a brass substrate.

No. The DKV6R is a combination unit, a door knocker with the viewer built into the same body, so one prep on the door face serves both. A plain viewer covers only the peephole function and leaves you to source and bore a separate knocker. If you want the combined arrangement but a different size or a 160 degree field, the Delaney 6 inch and 4 inch Door Knocker with 160 Degree Viewer are built the same combined way.

A combined unit like the Victorian Rope DKV6R gives you one bore and one set of mounting holes instead of two separate preps at two heights, and the sightline stays where the visitor is already looking when they knock. Buy them separately when you want the viewer at a different height than the knocker, which comes up on ADA-minded installs or a household with a big height spread, or when the door face is too shallow to carry a 6 inch plate at eye level.