Add-On Interlocks

Add-On Interlocks

The Add-on Interlocks are designed to mount under your 18" wide banquet or 20" wide church chair to provide linking of chairs into rows. USA Made.

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Product Description

The Add-on Interlocks are designed to easily mount under your 18″ wide banquet or 20″ wide church chair (view the how-to video on the Video Tab of this page) to provide secure linking of chairs into rows. Often required by fire codes in public assembly areas; Check with your local Fire Marshall for codes that apply to your specific locale. One set includes a male and female interlock for one chair. All hardware for installation is provided. Made in the USA.

Note: This accessory is designed to work with chairs manufactured by Bertolini Inc. We cannot guarantee it will work with chairs from other manufacturers; use with non-specified chairs is the buyer’s responsibility. Customer’s with existing Bertolini chairs should call to confirm fit.


Quick Specs

Bertolini Designed for Chairs made by

18" and 20" ChairsChairs Applied to

Steel Construction

Bertolini Manufacturer

USA Country of Origin

Lead Times

Lead Times

Typically In-stock Stock Status

Typically 1 Week Shipping time frame

Allow 3 Weeks To Ship If Not In-stock

800-647-7755 Call for Stock Status


Available Downloads for this Product

Download Installation Instructions (PDF)