Add-On Adapter Plate: Mount Swivel Adjustable Mount on Gang Box - 4.5in x 3in with 3.281in Hole Spacing

$40.00
$20.00
Gang Box Adapter Plate for Swivel Mounts (3.281" Wall Holes) Add-On Adapter Plate: Mount Swivel Base on Gang Box This is an **ADD-ON** adapter plate designed specifically to allow our standard Adjustable Swivel Mounts to be securely installed onto an...
Availability: Many In Stock
Product Type: Adjustable Baseplate

Gang Box Adapter Plate for Swivel Mounts (3.281" Wall Holes)

Add-On Adapter Plate: Mount Swivel Base on Gang Box

This is an **ADD-ON** adapter plate designed specifically to allow our standard Adjustable Swivel Mounts to be securely installed onto an existing **standard single gang electrical box**.

  • Purpose: Bridges the standard **3.281-inch (approx 3-1/4") vertical screw spacing** of a single gang box to the 2-5/8" spacing needed for our swivel mount base.
  • Covers the typical opening of a single gang box for a clean finish.
  • Adjustable Swivel Mount is NOT included - Purchase this adapter only if you have or are buying a compatible Swivel Mount separately and need to mount it over a gang box.

Mount Your Swivel Mount Over an Existing Electrical Box!

Have an existing single gang electrical box (like those used for light switches or outlets) where you want to mount your new video doorbell using one of our Adjustable Swivel Mounts? Don't want to drill new holes around the box? This adapter plate provides the perfect solution!

It uses the standard 3.281" spaced screw holes on the gang box for secure attachment, covers the box opening, and provides the correct standard 2-5/8" spaced mounting points for our Adjustable Swivel Mount base. Achieve a clean, professional installation directly onto your existing infrastructure.

Backplate Specifications

  • Overall Dimensions: Approx. 4.5 inches Height x 3 inches Width (Designed to cover standard single gang box openings).
  • Wall/Box Mounting Holes: Spaced vertically at **3.281 inches** (3 9/32") center-to-center to match standard single gang boxes.
  • Swivel Base Mounting Holes: Pre-drilled at **2-5/8 inches** center-to-center (standard for our Adjustable Swivel Mount bases).
  • Wire Passthrough: Center opening allows wires from the gang box to pass through.

Key Features & Benefits:

  • Gang Box Solution: Allows direct mounting of swivel base onto standard single gang boxes.
  • Hole Spacing Conversion: Adapts 3.281" vertical box holes to 2-5/8" swivel base holes.
  • Covers Box Opening: Provides a clean look over the electrical box recess.
  • Stable Mounting Platform: Creates a solid surface for secure swivel mount attachment.
  • Pre-Drilled Convenience: Holes perfectly aligned for both the box and the swivel base.
  • Durable PETG Material: Strong, weather-resistant plastic suitable for outdoor use.
  • Color Options: Default Black, other colors available via add-on service.
  • Hardware Included: Comes with small screws (#4 / PH1 likely) to attach the swivel mount base to this backplate. (Wall/box screws NOT included).

How to Install (Backplate + Swivel Mount)

This backplate sits between your wall/gang box and the standard swivel mount base.

  1. Tools & Prep: Gather Swivel Mount parts, this Backplate, drill (optional), PH1 & PH2 drivers/bits, level, appropriate screws for your gang box (Gang box screws NOT included).
    Turn OFF power to the circuit at the breaker! Verify power is off before touching wires.
  2. Position & Secure Backplate: Remove any existing fixture/cover from the gang box. Route wires through the center hole of this **Large Backplate**. Align the **3.281" spaced holes** on the backplate with the screw holes on your gang box. Secure the backplate firmly to the gang box using appropriate machine screws (commonly 6-32 size, but verify your box type - NOT included).
    Ensure the backplate is level and sits flush. Use correct screws for your box.
  3. Mount Swivel Base to Backplate: Route wires through the standard **Swivel Mount Base** piece. Align the swivel base onto the now-mounted Large Backplate using the **2-5/8" spaced holes**. Attach the swivel base firmly to the backplate using the small screws **provided with this backplate** (#6 Screws USE PH3 driver).
    Do not overtighten screws into the backplate's threaded inserts.
  4. Continue Swivel Mount Install: Proceed with the standard installation steps for your swivel mount (attach swivel bracket to base, set angle, wire doorbell, attach doorbell using mount-provided screws, finalize angle) as detailed in the main swivel mount instructions.

Always follow electrical safety rules & wiring guidelines. Selecting the correct screws for your gang box is crucial for a secure installation.

Product Visualization

(See listing photos or contact us for images!)

Questions About Fit or Compatibility?

Unsure if this backplate matches your gang box hole spacing or is compatible with your specific swivel mount? Need a different size or hole pattern?

Default Color: Black. Need White or another color? Please purchase the separate Color Change Request listing along with this backplate.

Backplate Only: This listing is for the Gang Box Adapter Backplate ONLY. The Adjustable Swivel Mount and doorbell must be purchased separately. Hardware for mounting this plate to your wall/gang box (e.g., 6-32 machine screws) is NOT included.

3D Printed Parts: Crafted using 3D printing (PETG). Minor cosmetic imperfections or layer lines may be present but do not impact strength or function. Contact us with quality concerns before reviewing.

Order this Gang Box Adapter Plate today to easily mount your Adjustable Swivel Mount over a standard single gang box using existing 3.281" holes!