LCN 4020-18 Drop Plate for Nar...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$83.00
$74.50
LCN 4020-18 Drop Plate for Narrow Top Rail and Flush Ceiling Applications

LCN 4020-18 Drop Plate for Narrow Top Rail and Flush Ceiling Applications

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Model: 4020-18 689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$83.00
$74.50
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LCN 4020 Series Drop Plate for Narrow Top Rail and Flush Ceiling Applications

Essential Installation Accessory for Restricted Head Frame Conditions

The LCN 4020 Series Drop Plate is a specialized installation accessory designed to enable proper door closer mounting in applications with limited head frame clearance. Required where head frame dimensions are less than 3 7/16" (87 mm), this drop plate accommodates narrow top rail and flush ceiling installations while maintaining optimal closer performance. The plate requires a minimum 1 3/4" (44 mm) head frame depth and 2" (51 mm) top rail with a maximum reveal of 3 7/8" (98 mm).

Professional Features & Benefits

  • Critical Dimension Compatibility: Designed for head frames less than 3 7/16" (87 mm) where standard mounting is not feasible.
  • Minimum Clearance Requirements: Accommodates installations with 1 3/4" (44 mm) minimum head frame and 2" (51 mm) top rail dimensions.
  • Maximum Reveal Specification: Supports installations up to 3 7/8" (98 mm) maximum reveal for versatile application compatibility.
  • 4020 Series Integration: Specifically engineered for seamless compatibility with LCN 4020 Series door closers.
  • ADA Compliant Design: Meets accessibility requirements for commercial door control applications.
  • Commercial-Grade Construction: Built for demanding commercial environments requiring reliable door control solutions.
  • Installation Flexibility: Enables proper closer mounting in challenging architectural conditions including flush ceiling applications.

Technical Specifications

  • ADA Compliant: Yes
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Parts and Accessories Type: Installation Accessories
  • Product Attribute: Parts and Accessories
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Model: 4020-18
  • Product Subgroup: Parts and Accessories
  • Product Type: Drop Plate
  • Series: 4020 Series
  • Subcategory: Parts and Accessories

Professional Applications

  • Commercial Office Buildings with Limited Head Frame Clearance
  • Educational Facilities with Flush Ceiling Construction
  • Healthcare Institutions Requiring ADA Compliance
  • Retail Establishments with Architectural Constraints
  • Industrial Facilities with Narrow Top Rail Conditions
  • Multi-Tenant Properties with Varied Door Frame Specifications
  • Government Buildings Requiring Accessible Door Control Solutions

Why Choose LCN Quality?

LCN door control accessories deliver professional-grade reliability with precision-engineered compatibility for 4020 Series applications. ADA compliant design ensures accessibility compliance while accommodating challenging installation conditions. Engineered for demanding commercial applications where dependable door control performance is essential.

Manufacturer Resources

LCN Full Line Catalog

Product Specs

Series:
4020 Series
Subcategory:
Parts and Accessories
Product Group:
Door Controls
Product Subgroup:
Parts and Accessories
Product Type:
Drop Plate
Commercial/Residential:
Commercial
ADA Compliant:
Yes
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Product Model:
4020-18
Product Category:
Door Controls
Department:
Door Hardware

LCN 4020-18 689 – Frequently Asked Questions

1) When do I need an LCN 4020-18 drop plate instead of mounting the closer straight to the frame?
You need the drop plate when the head frame face is less than 3 7/16 inches (87 mm), which is where a standard 4020 Series closer body has nowhere to land. The plate drops the mounting surface so the closer can still be installed on a narrow top rail or under a flush ceiling.
2) What are the minimum frame dimensions for using the LCN 4020 drop plate?
The opening has to give you at least 1 3/4 inches (44 mm) of head frame depth and a 2 inch (51 mm) top rail. Reveal can be no more than 3 7/8 inches (98 mm). Below those numbers the plate will not mount and you are into a different mounting approach entirely.
3) Will the 4020-18 drop plate work with an LCN closer from another series?
It is built for LCN 4020 Series closers and the hole pattern matches that body. If the closer on your door is from a different LCN family, order the drop plate made for that series rather than adapting this one.
4) Does using a drop plate affect ADA compliance on the opening?
No. The 4020-18 drop plate is an ADA compliant accessory, so a closer mounted on it can still be set up to meet accessible opening force and closing speed requirements. It only changes where the closer body sits, not how it is adjusted.
5) What finishes does the LCN 4020 drop plate come in so it matches my closer?
Thirteen finishes, covering the usual closer range: 616 satin bronze blackened, 632 bright brass, 633 satin brass, 639 satin bronze, 646 satin nickel, 651 bright chrome, 652 satin chrome, 689 aluminum, 690 statuary bronze, 691 light bronze, 693 gloss black, 695 dark bronze and 696 brass. Match the plate to the closer cover finish, since both are visible on the frame.
6) Can I use this drop plate on a flush ceiling condition above the door?
Yes, that is one of the two conditions it is made for. Where a ceiling runs flush to the frame and leaves no room for the closer on the head, the plate relocates the mounting surface down onto the frame face or top rail. Narrow top rail doors are the other case.
7) I am standardizing closers across a building with mixed frame depths. Do I order drop plates for every door?
Only for the openings where the head frame measures under 3 7/16 inches. Doors with a deeper frame take the 4020 closer directly. Measure frame face, frame depth and reveal on each opening first, then order plates in the same finish as the closers so the building reads consistently.
8) Is the LCN 4020 drop plate suitable for a residential door, or is it a commercial part?
It is a commercial door control accessory, sold as an installation accessory for 4020 Series closers in offices, schools, healthcare and government buildings. Nothing stops it going on a residential door, but it is specified and built for commercial traffic openings.
How fast can I get the LCN 4020-18 689 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 LCN 4020-18 689 come with a warranty?
Absolutely. The LCN 4020-18 689 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 LCN 4020-18 689?
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 LCN 4020-18 689 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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