Cal-Royal 850 Drop Plates for ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$22.71
Cal-Royal Cal-Royal 850 Drop Plates for CR801S Series CAL-850

Cal-Royal 850 Drop Plates for CR801S Series Door Closers

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Model: 805F-ALUM
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$22.71
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Cal-Royal 850 Drop Plates for CR801S Series Door Closers

The Cal-Royal 850 Drop Plates are designed as compatible mounting accessories for the CR801S Series surface-mounted door closers, giving installers the flexibility needed to accommodate a variety of door and frame conditions. This accessory line includes three distinct configurations — the 850S Slim Flat Drop Plate, the 850W Wide Flat Drop Plate, and the 850F Full Flat Drop Plate — each engineered to provide a proper mounting surface for top jamb or parallel arm applications. As part of the Door Controls product group, these drop plates support commercial installations where precise closer positioning is essential for reliable, long-term operation.

Key Features

  • 850S Slim Flat Drop Plate: A slim-profile flat drop plate configuration for applications requiring a low-clearance mounting solution.
  • 850W Wide Flat Drop Plate: A wide flat drop plate option that accommodates broader mounting surface requirements for compatible door and frame conditions.
  • 850F Full Flat Drop Plate: A full flat drop plate configuration providing maximum surface coverage for CR801S Series parallel arm mounting.
  • CR801S Series Compatibility: Purpose-built to pair with the CR801S Series surface-mounted door closers for correct fit and function.
  • Surface Mounted Design: Classified under the Surface Mounted subcategory, allowing straightforward integration with existing surface-applied closer hardware.
  • Commercial-Grade Application: Suited for commercial door hardware installations where consistent closer alignment supports dependable daily operation.

Technical Specifications

  • Subcategory: Surface Mounted
  • Product Group: Door Controls
  • Product Subgroup: Parts and Accessories
  • Product Type: Parts and Accessories
  • Commercial/Residential: Commercial
  • Product Model: 805
  • Product Category: Door Controls
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Cal-Royal 850?

Cal-Royal 850 Drop Plates are purpose-built accessories that ensure correct fit and function when mounting CR801S Series door closers in commercial settings. Offering three configurations — slim, wide, and full flat profiles — this accessory line gives installers the flexibility to match the right drop plate to the specific door and frame condition. As part of the broader Door Controls category, these drop plates support the consistent, professional-grade installation that commercial door hardware applications demand.

Product Specs

Subcategory:
Surface Mounted
Product Group:
Door Controls
Product Subgroup:
Parts and Accessories
Product Type:
Parts and Accessories
Commercial/Residential:
Commercial
Product Model:
805
Product Category:
Door Controls
Department:
Door Hardware

Cal-Royal 805F-ALUM – Frequently Asked Questions

1) What does a Cal-Royal 850 drop plate actually do on a door closer install?
A drop plate gives the closer body a flat mounting surface where the door or frame does not offer one. On CR801S Series surface closers it lowers or extends the mounting point so the closer sits correctly for top jamb or parallel arm mounting, which is what keeps the arm geometry right on narrow top rails, deep reveals, and frames with no usable flat area. It is a mounting accessory only, not a closer, so you order it alongside the CR801S closer.
2) Which Cal-Royal drop plate should I pick, slim, wide, or full flat?
Three flat profiles are offered. The slim flat plate is for low-clearance conditions where there is little room on the header or top rail. The wide flat plate covers broader mounting surface requirements. The full flat plate gives maximum surface coverage and is aimed at CR801S parallel arm mounting. Choose by how much flat surface the frame or door actually gives you at the mounting point, not by the closer size.
3) My closer is mounted parallel arm on the push side and there is not enough header. Do I need a drop plate?
That is the usual case for one. Parallel arm mounting puts the closer body on the door face under the frame stop, and when the top rail or the soffit does not give a full flat landing for the shoe and body, a drop plate provides it. The full flat profile is the one called out for CR801S parallel arm mounting; if clearance at the header is tight, the slim profile is the low-clearance option.
4) My parallel arm closer needs more reveal clearance, not a flat mounting surface. What do I use?
A drop plate like the Cal-Royal 805W or 805F only relocates the closer body lower on the door or frame to give it a flat mounting surface; it does not address reveal depth. For deep reveals on a parallel arm installation, LCN offers the 1260-30 Cush Shoe Support, rated for 3-1/16 inch reveal compatibility on 1260 Series closers. Match the support to the closer brand and series you have installed.
5) What finishes do the Cal-Royal 850 drop plates come in?
Aluminum, Duronodic, and Gold, and each of the three plate profiles is offered in all three. Match the plate to the closer cover finish so the header does not end up with two different tones sitting side by side, which matters on storefront and office fronts where the closer is in full view.
6) Does the Cal-Royal drop plate replace a closer arm or a mounting bracket on an existing job?
A drop plate is not an arm. If what you need is arm geometry rather than a mounting surface, you are looking at a different accessory class, such as the Dormakaba 15323 1-1/2 inch offset bottom arm or a cush shoe support like the LCN 1260-30 rated for 3-1/16 inch reveal. The 850 plates only solve the problem of having no flat surface to fasten a CR801S closer to.
7) Can I use a Cal-Royal 850 drop plate to add hold-open to my closer?
No. The 850 plates are flat mounting brackets for the CR801S Series and do not change how the closer arm behaves. Hold-open is an arm or track function: Deltana offers the DCHA1050 Hold Open Arm for its DC10 closer, and LCN offers the 4040SEH-3038 Hold Open Track for its 4000 Series. Those are closer-specific, so pick the one matching your installed closer.
8) Between the 805S slim and the 805W wide Cal-Royal drop plate, which should I standardize on across a building?
Neither is a universal answer, because the choice follows the frame condition rather than the door. The 805S slim flat bracket suits low-clearance mounting where the available face is narrow, and the 805W wide flat bracket covers broader mounting surfaces. Facilities with mixed frame profiles usually stock both plus the 805F full flat. All three come in Aluminum, Duronodic, and Gold so the finish can stay consistent across the building regardless of which profile a given opening needs.
9) I need a replacement arm for my Cal-Royal closer, not a mounting plate. Is the Deltana cushion arm a fit?
No. The Deltana DCCA4041 Cushion Arm is built for the Deltana DC40 closer, and the Dorma 15323 is a 1-1/2 inch offset bottom arm with cover rated standard duty and not fire rated. The Cal-Royal 850 items are flat drop brackets for the CR801S Series and are not arms. Arms are matched to the closer body, so a Cal-Royal closer needs a Cal-Royal arm.
10) Is this drop plate suitable for a commercial opening or is it a residential part?
It is a commercial door hardware item, used on office buildings, schools, healthcare facilities, retail, industrial and warehouse buildings, multi-tenant residential, and government work. Property managers standardizing a building can spec the same profile and finish across openings that share the same frame condition.
11) How do I keep the finish on a Cal-Royal drop plate from looking worn on a high-traffic entrance?
Cal-Royal publishes finish maintenance and care guidance covering the Aluminum, Duronodic, and Gold architectural finishes used on these plates. On entrances that see cleaning chemicals daily, follow it rather than treating the plate as a painted part, since aggressive cleaners are what usually dull a Duronodic or Gold header component first.
How fast can I get the Cal-Royal 805F-ALUM delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Cal-Royal 805F-ALUM come with a warranty?
Absolutely. The Cal-Royal 805F-ALUM is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Cal-Royal 805F-ALUM?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Cal-Royal 805F-ALUM from ZenSupply?
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