Deltana DK854 Door Knocker, Imperial

The DK854 mounts on 4-7/8 inch centers, and the knocker itself is 8-1/2 inches overall. Those two numbers are what decide whether it drops onto an existing pair of holes when you swap out an old knocker, and whether it clears the stile and any glass or panel molding on the door face. Measure the existing holes first: if they are not 4-7/8 apart you will be drilling fresh.

Fasteners are included in the box. Deltana packs the DK854 two pieces per box with the fasteners, so you are not sourcing hardware separately. Note the pack, though: it is a 2 piece box, so if you are hanging one door you will have a spare.

Nine finishes: PVD Polished Brass, Polished Brass, Antique Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, and Paint Black. If the door faces weather and you want the shine to stay put, the PVD Polished Brass is the one to take. PVD is a deposited coating rather than a lacquer, so it does not chalk and flake the way a lacquered brass does after a couple of seasons in sun and rain. Oil Rubbed Bronze is a living finish and will darken and wear at the knuckle where it gets struck, which is what most people want from it.

No. The DK854 Imperial is a knocker only, with no integral viewer. If you want the knock and the peephole in one plate on the door, the Trimco 620 contemporary knocker is offered with an optional viewer and engraving. Otherwise you drill a separate viewer above the knocker.

Work from the 8-1/2 inch overall length and the 4-7/8 inch fastener spacing. The knocker needs 8-1/2 inches of uninterrupted flat face vertically, and the two through-holes land 4-7/8 apart within that. On a full-lite or three-quarter-lite door there is often only a few inches of rail below the glass, and this will not fit there. Measure the flat area on your door before you commit.

The Emtek 2620 is a solid brass door knocker in an urn style, which puts it in the same material class as the DK854 Imperial, a solid brass knocker measuring 8-1/2 inches with 4-7/8 inch center to center fastener spacing. The DK854 is packed 2 pieces per box with fasteners. Where the two differ is form: the DK854 carries the Imperial styling and the Emtek 2620 is drawn as an urn. Both are brass-bodied exterior door hardware for residential entry doors.

The Emtek 86060 is a 4 inch bronze door knocker with a ring pull, so the striking element is a ring rather than the Imperial-form knocker of the Deltana DK854. The 86060 is from Emtek's Sandcast Bronze series, giving a cast bronze body against the DK854's solid brass. If the door needs a grip-style ring at the knocker, the 86060 is the one that provides it.

The Trimco 620 is a contemporary style door knocker offered with an optional viewer and optional engraving, so a single unit covers both the knock and the peephole in one door prep. The Deltana DK854 Imperial is a solid brass knocker on its own, mounted through the door at 4-7/8 inch center to center. For an entry where the buyer wants a viewer integrated into the knocker rather than bored separately, the Trimco 620 is the part that does it.

Deltana lists the DK854 as residential. For a single-family front door, a condo unit door, or a townhouse entry it is the right class of product. On a high-traffic commercial or institutional entrance, look at a Trimco knocker instead, such as the Trimco 620 contemporary or the 621 colonial, since Trimco builds to the commercial door hardware market.

It works for a fleet spec. One model number, one 4-7/8 inch hole pattern across every door, and nine finishes to pick from so you can match whatever the lever and hinge finish already is. Order in the 2 piece boxes, which for 40 doors is 20 boxes plus attic stock. Keep in mind Deltana classes this as residential hardware, so it suits multi-family unit entries rather than a lobby or a mall entrance.

Style and metal, mostly. The DK854 is the Imperial pattern in solid brass, 8-1/2 inches, on 4-7/8 inch centers. Emtek's 2620 is a solid brass urn style, a different silhouette in the same material. The Emtek 86060 is a different animal: sandcast bronze with a 4 inch ring pull, so you get a rougher cast texture and a ring rather than a hinged plate knocker. Pick the sandcast if the door is a rustic or Spanish revival slab; pick the Imperial or the urn for a traditional painted entry.

Both are Trimco door knockers but they are drawn differently: the 620 is the contemporary style from the 620 Series and offers an optional viewer and engraving, while the 621 is the colonial style from the 621 Series. Against those, the Deltana DK854 is the Imperial style in solid brass at 8-1/2 inches. A property manager matching the look already on the other units picks by that styling difference; the DK854 and the 621 both read as traditional forms, the 620 reads contemporary.

No, it will not match on material basis. The Deltana DK854 Imperial is solid brass and is sold in PVD Polished Brass, Polished Brass, Antique Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, and Paint Black. The Emtek 86060 is a bronze knocker from the Sandcast Bronze series, and a sandcast bronze body reads with the texture and tone of cast bronze rather than a plated or PVD brass. For a fleet of doors standardized on a DK854 finish, staying within the DK854 finish range keeps the entries consistent.

The DK854 Imperial fastens on 4-7/8 inch centers with an overall size of 8-1/2 inches, so an existing prep on different centers will not reuse the holes. The Emtek 86060 is a 4 inch bronze knocker with a ring pull and covers a smaller footprint on the door face, while the Trimco 620 and Trimco 621 are separate knocker designs in the 620 and 621 Series. Confirm the prep on the door before ordering, since the knocker plate has to cover whatever holes are already there.

Engraving is a feature of the Trimco 620, which is a contemporary style door knocker offered with optional engraving and an optional viewer. The Deltana DK854 Imperial is a solid brass knocker supplied 2 pieces per box with fasteners in its selected finish. Where a multi-family or hospitality job calls for unit identification carried on the knocker itself, the Trimco 620 is the design that supports it.

Priced and sold each, one knocker per unit, but it is packed 2 pieces to a box with the fasteners. So the unit of measure on the order is a single knocker; the carton it arrives in holds two.