Name: LCN 4020T-18 Drop Plate for Narrow Top Rail Installation
Brand: LCN
SKU: 4020T-18 689
Price: 74.5 USD
Availability: InStock

Product Overview
FAQs

LCN 4020T Series Drop Plate for Narrow Top Rail Installation

Professional Installation Accessory for Restricted Frame Applications

The LCN 4020T Series Drop Plate is an essential installation accessory designed specifically for 4020T Series door closers in applications where standard mounting is not feasible. This drop plate enables proper installation where head frame dimensions are less than 3 7/8" (98 mm), requiring only a minimum 1 3/4" (44 mm) frame face for secure mounting. Engineered for commercial applications, this ADA compliant accessory ensures reliable door closer performance in challenging architectural conditions.

Professional Features & Benefits

Compact Frame Compatibility: Designed for head frames less than 3 7/8" (98 mm) where standard mounting is not possible.
Minimal Frame Requirements: Requires only 1 3/4" (44 mm) minimum frame face for secure installation and proper load distribution.
4020T Series Integration: Specifically engineered for seamless compatibility with LCN 4020T Series door closers for reliable performance.
ADA Compliance: Meets ADA requirements for accessible door hardware installations in commercial applications.
Professional Construction: Heavy-duty design provides stable mounting platform for consistent door closer operation.
Installation Flexibility: Enables door closer installation in narrow top rail or flush ceiling applications where space is limited.

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: 4020T-18
Product Subgroup: Parts and Accessories
Product Type: Drop Plate
Series: 4020T Series
Subcategory: Parts and Accessories

Professional Applications

Commercial Office Buildings with Narrow Frame Construction
Educational Facilities with Limited Header Space
Healthcare Institutions with Flush Ceiling Requirements
Retail Establishments with Architectural Constraints
Industrial Facilities with Space-Limited Doorways
Multi-Tenant Residential Properties with Compact Frames
Government Buildings with Specialized Frame Configurations

Why Choose LCN Quality?

LCN door control accessories deliver professional-grade reliability with precision engineering designed for demanding commercial applications. This ADA compliant drop plate ensures proper door closer installation even in challenging architectural conditions where standard mounting is not feasible. Engineered for dependable performance where space constraints require specialized installation solutions.

Manufacturer Resources

LCN Full Line Catalog

Product Specs

Series:: 4020T 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:: 4020T-18
Product Category:: Door Controls
Department:: Door Hardware

LCN 4020T-18 689 – Frequently Asked Questions

1) My head frame is too shallow to mount an LCN 4020T closer. What do I need?

The LCN 4020T-18 drop plate is what handles that. It mounts the 4020T Series closer when the head frame measures less than 3 7/8 inches (98 mm), which is below what the closer needs for standard frame mounting. The plate itself needs a minimum 1 3/4 inch (44 mm) frame face to land on and distribute the load. Measure the frame face first, since 1 3/4 inches is the floor, not a target.

2) I am standardizing closers across a building with mixed frame depths. Can I use the same 4020T closer everywhere?

Yes, and the drop plate is how you do it. Openings with a head frame of 3 7/8 inches (98 mm) or more take the 4020T closer on standard mounting. Openings below that get the same closer plus a 4020T-18 drop plate, as long as there is at least 1 3/4 inches (44 mm) of frame face. Same closer, same adjustment procedure, same spare parts across the fleet, with the plate absorbing the frame difference. Order the plates in the same finish as the closers so the openings read consistently.

3) Is the drop plate included with an LCN 4020T closer or do I order it separately?

It is a separate line item. The 4020T-18 is an installation accessory ordered alongside the 4020T Series closer, in the finish you want, when the frame condition calls for it. Closers ship with their standard mounting hardware, so you only add the plate once you have measured the head frame and found it under 3 7/8 inches (98 mm).

4) Does a drop plate on the closer affect ADA compliance on the opening?

No. The 4020T-18 drop plate is ADA compliant, so using it to get the closer mounted on a shallow head frame does not put the opening outside ADA hardware requirements. The plate is a mounting accessory only, it does not change the closer's spring size or the opening force you set at the closer.

5) What finish should I order the LCN drop plate in to match my closer?

Order it in the same finish as the closer body, since the plate sits right under it and is fully visible. The 4020T-18 comes in 13 finishes: 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. 689 aluminum and 695 dark bronze are the two you will match most often on commercial storefront and aluminum entrances.

6) Do I need a drop plate for a narrow top rail door, or is that a different problem than a narrow frame?

Both cases point to the same plate. The 4020T-18 covers narrow top rail installations and flush ceiling conditions as well as shallow head frames, because in each one there is not enough flat mounting surface where the closer body normally goes. The controlling number is the 1 3/4 inch (44 mm) minimum frame face the plate needs to fasten to. If you cannot get 1 3/4 inches of face, the drop plate will not solve it either and you should look at a different mounting arrangement for the closer.

7) Is the LCN 4020T-18 drop plate rated for commercial door traffic or is it a light duty part?

Commercial. The 4020T-18 is a commercial grade accessory, and it is the mounting platform the whole closer hangs on, so it carries the closer's operating load rather than just filling a gap. It gets specified on office buildings, schools, healthcare, retail and multi-tenant residential where the header does not give the closer enough frame to sit on.

How fast can I get the LCN 4020T-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 4020T-18 689 come with a warranty?

Absolutely. The LCN 4020T-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 4020T-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 4020T-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.

LCN 4020T-18 Drop Plate for Narrow Top Rail Installation

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