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Cal-Royal DK93 Door Knocker with 160° Viewer
The Cal-Royal DK93 Door Knocker with 160° Viewer combines a durable die cast knocker with a wide-angle door viewer in a single 2" x 4" unit, designed for doors 1 3/8" to 1 3/4" thick (Non UL). Conforming to ANSI/BHMA A156.16 L23151, this door hardware accessory is built for commercial applications where both visibility and a traditional knocking function are required. A UL Listed version, the ULDK93, is available for 90-minute fire-rated doors, extending suitability into applications requiring fire compliance. The die cast construction provides long-term durability, while the 160° viewer offers a wide field of view for enhanced entryway security.
Key Features
- Compact Footprint: Overall size of 2" x 4" allows for easy integration into standard door prep without extensive modification.
- Door Thickness Compatibility: Designed for doors 1 3/8" to 1 3/4" thick in the standard Non UL configuration.
- Fire-Rated Option Available: The ULDK93 variant is UL Listed for 90-minute doors, supporting fire-rated door assembly requirements.
- Durable Die Cast Construction: Die cast material provides a solid, long-lasting knocker and viewer housing suited to frequent commercial use.
- Easy Installation: Designed for straightforward installation, packed with the necessary screws for a complete setup.
- Architectural Finish Options: Available in architectural finishes to coordinate with surrounding door hardware and building aesthetics.
- Individually Packaged: Each unit is individually poly-bagged for protection during shipping and storage, and includes mounting screws.
Certifications & Compliance
- Conforms to ANSI/BHMA A156.16 L23151
- ULDK93 variant is UL Listed for 90-minute doors
Technical Specifications
- Product Group: Door Trim and Accessories
- Product Subgroup: Door Knockers and Viewers
- Product Type: Door Knockers with Viewers
- Subcategory: Door Knockers and Viewers
- Commercial/Residential: Commercial
- Product Category: Door Trim and Accessories
- Department: Door Hardware
Typical Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Cal-Royal DK93?
Cal-Royal DK93 door knockers with viewer deliver dependable, professional-grade performance backed by durable die cast construction and ANSI/BHMA A156.16 L23151 compliance. With a UL Listed 90-minute fire-rated option available in the ULDK93 variant, this hardware is engineered to meet the demands of both standard and fire-rated commercial door applications.
Manufacturer Resources
Cal-Royal Product Catalog
Product Specs
- Product Group:
- Door Trim and Accessories
- Product Subgroup:
- Door Knockers and Viewers
- Product Type:
- Door Knockers with Viewers
- Subcategory:
- Door Knockers and Viewers
- Commercial/Residential:
- Commercial
- Product Model:
- DK93
- Product Category:
- Door Trim and Accessories
- Department:
- Door Hardware
Cal-Royal DK93-US15 – Frequently Asked Questions
1) Does the DK93 door viewer meet ANSI/BHMA requirements for a commercial building?
The DK93 conforms to ANSI/BHMA A156.16 under type number L23151, which is the auxiliary hardware standard specifiers cite for knockers and viewers. That is the line an institutional or government submittal usually needs, and it is the one to reference on the schedule.
2) Which door knocker with viewer can go on a 90-minute fire-rated door?
Use the Cal-Royal ULDK93, the UL Listed build of the DK93, which is UL Listed for 90-minute doors; it is ordered by selecting the UL Listed option on the DK93 in the finish you want. The standard Non UL DK93 covers doors 1 3/8" to 1 3/4" thick but is not the fire-rated build. The Delaney 4" DLY-400x10 and 6" DLY-4001 knockers with 160 degree viewers are the alternatives for non-rated openings. For a corridor or stair door in a healthcare, education, or government facility where the opening is part of a rated assembly, the ULDK93 is the one that answers the inspector.
3) I need a larger door knocker with a viewer than the Cal-Royal DK93 - what else is there?
The Delaney 6" Door Knocker with 160 Degree Viewer, DLY-4001, is the larger-format option, catalogued as a 6" door knocker series with the same 160 degree viewing angle. The Cal-Royal DK93 is a 2" x 4" unit, which is the more compact footprint of the two and drops into standard door prep without extensive modification. Choose on the escutcheon size you want showing on the face of the door and on whether an existing bore or previous knocker footprint has to be covered.
4) What is an equivalent to the Cal-Royal DK93 door knocker with viewer from another brand?
The Delaney 4" Door Knocker with 160 Degree Viewer, DLY-400x10, is the closest peer: it is a door knocker with an integrated 160 degree viewer, the same combined function as the Cal-Royal DK93. The DK93 is a 2" x 4" die cast unit for doors 1 3/8" to 1 3/4" thick in the Non UL build, and the Cal-Royal side conforms to ANSI/BHMA A156.16 L23151. The Delaney unit is catalogued as a 4" door knocker series. If the specification on the drawing calls out an ANSI/BHMA A156.16 L23151 knocker, the Cal-Royal is the one carrying that callout.
5) What finishes does the Cal-Royal DK93 knocker come in so it matches our existing door hardware?
Five architectural finishes: US3 polished brass, US5 antique brass, US10B antique bronze oiled, US15 satin nickel, and US26D satin chrome. Those are standard BHMA finish codes, so a property manager standardizing a corridor can match the DK93 to lever and lockset finishes already on the other doors by code rather than by eye.
6) Should I use a combination knocker-viewer like the DK93 or a separate knocker and peephole?
A combined unit like the DK93 needs one bore and one prep instead of two, which matters when you are doing a whole floor of apartment entry doors and want every unit drilled the same. Separate pieces let you set viewer height independently of the knocker, but you double the install time and the holes. For multi-tenant and hospitality work where the doors are identical, the single 2 x 4 inch unit is the faster standardization.
7) What else could I buy instead of the Cal-Royal DK93 knocker with viewer?
Delaney Hardware makes two 160 degree knocker-and-viewer combinations: the 4 inch door knocker (model 400x10) and the 6 inch door knocker (model 4001). The Delaney 6 inch is the larger plate if you want more presence on a residential-style entry door; the 4 inch sits closer to the DK93's footprint. Where the DK93 separates itself is the fire side, since the ULDK93 build is UL Listed for 90-minute doors.
8) Are the Delaney 4" and 6" knockers with viewers interchangeable with the Cal-Royal DK93 in the same door prep?
Treat them as separate preps, not drop-in swaps. The Cal-Royal DK93 is a 2" x 4" die cast unit; the Delaney units are a 4" door knocker, DLY-400x10, and a 6" door knocker, DLY-4001. The face dimension differs across all three, so a hole and screw pattern set for one is not guaranteed to be hidden or reused by another. If a property manager is replacing one unit on a bank of doors already carrying DK93s, staying on the DK93 keeps the face size and screw pattern consistent across the fleet; going up to the Delaney 6" is the move when a bigger plate is wanted to cover an old prep.
9) Do I lose viewing angle if I go with the Delaney knocker instead of the Cal-Royal DK93?
No. The Cal-Royal DK93 carries a 160 degree viewer, and both Delaney comparables, the 4" DLY-400x10 and the 6" DLY-4001, are 160 degree viewer units as well. The field of view is the same across the three; the decision falls to face size, finish, and whether the opening is fire rated, where the UL Listed ULDK93 build is the one listed for 90-minute doors.
10) How wide is the field of view on the Cal-Royal DK93 peephole?
160 degrees. That is wide enough for someone standing to the side of the opening rather than square in front of it, which is the whole point on an apartment or office entry where a visitor steps out of the frame. Cal-Royal builds the housing die cast rather than in plastic, which is what holds that lens alignment under daily use in a commercial corridor.
11) Is the Cal-Royal DK93 rated for commercial traffic or is it a residential grade part?
Cal-Royal classifies the DK93 as commercial hardware, and the knocker body and viewer housing are die cast rather than stamped or molded, which is what survives a multi-tenant entry that gets used every day. It is specified into office buildings, schools, healthcare, retail, and government work.
12) Do I need to order screws or a trim ring separately with the DK93 knocker viewer?
No. Each DK93 ships individually poly-bagged with the mounting screws included, so one line item per door completes the install. Order one unit per opening and one finish per run of doors.
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Does the Cal-Royal DK93-US15 come with a warranty?
Absolutely. The Cal-Royal DK93-US15 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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