Offset Narrow Extension Baseplate for Swivel Mounts (Select Length)
Add-On Baseplate: Narrow Trim + Offset Screws + Selectable Extension
This is an **ADD-ON** adapter baseplate designed to work with our standard Adjustable Swivel Mounts, solving multiple installation challenges simultaneously.
- Narrow Trim Fit: Features a **3/4-inch wide base** to mount on slim surfaces.
- Offset Wall Screws: Mounting holes are offset 1/2" from the edge, allowing the plate to overhang the trim while securing into solid structure behind/beside it. Provides significant sideways doorbell offset.
- Selectable Forward Extension: Choose the desired extension length (1/4" to 1-1/2") for this adapter piece using the options.
- Swivel Mount is NOT included - Purchase this adapter only if you have or are buying a compatible Swivel Mount separately and need this specific combination of features.
The Ultimate Solution for Tricky Swivel Mount Installations!
Facing extremely narrow trim (just 3/4" wide), need significant sideways offset, AND need to push your doorbell further out from the wall? This specialized **Offset Narrow Extension Baseplate** is engineered to handle all three requirements!
Its slim 3/4" width fits the tightest spots. The offset wall screw holes (1/2" from edge) allow secure mounting into structure even when the plate overhangs the trim. Plus, you select the forward extension length (1/4" up to 1-1/2") needed to clear deep siding, stone, or other obstructions. This creates a stable, extended, and offset platform ready for your standard Swivel Mount base.
Adapter Plate Specifications
- Required Mounting Surface Width: Minimum 3/4 inch flat area.
- Wall Screw Hole Position: Offset 1/2 inch inward from one edge of the adapter plate.
- Extension Length Added (Selectable): Choose **1/4", 1/2", 1", or 1-1/2"** from options. This is the distance from the wall/trim to the bottom mounting face for the swivel base.
- Adapter Thickness/Transition Depth: Approx. **1/4 inch**.
- Total Depth Added by THIS Adapter: [Selected Extension Length] + 1/4 inch.
- Swivel Base Mounting Holes: Standard 2-5/8 inches center-to-center.
- Resulting Doorbell Offset: Provides significant sideways offset (direction depends on installation orientation).
Approximate Final Doorbell Position (Varies with Length)
When this adapter is combined with a standard Swivel Mount, the final position of the doorbell face (approx. 1" thick) from the wall will be roughly:
- [Selected Extension Length] + 1/4" (Adapter Thickness) + ~1.5" (Swivel @ 0°) + ~1" (Doorbell Thickness)
- Example (1" Extension Selected): 1" + 0.25" + 1.5" + 1" = ~3.75" (3-3/4") from wall to doorbell face.
(Estimates vary based on exact swivel mount and doorbell model).
Key Features & Benefits:
- Triple Solution: Addresses Narrow Trim (>= 3/4"), provides Offset mounting, AND adds selectable Extension depth.
- Offset Wall Screw Holes (1/2" from edge): Enables secure mounting with plate overhang.
- Selectable Forward Extension: Choose 1/4", 1/2", 1", or 1-1/2" additional depth.
- Provides Significant Sideways Offset: Shifts doorbell for better view or door clearance.
- Slim 1/4" Profile: Minimal added thickness from the plate itself.
- Accepts Standard Swivel Base: Pre-drilled with 2-5/8" hole spacing for our Swivel Mounts.
- Robust PETG Material: Durable and weather-resistant for outdoor use.
- Color Coordinated: Matches Swivel Mount order color (Default Black).
- Includes Connection Hardware: Comes with small screws (#4 / PH1 likely) to attach the swivel mount base to this adapter.
How to Install (Offset Extension Adapter + Swivel Mount)
This adapter fits between your narrow trim and the Swivel Mount base, using offset screw holes.
-
Tools & Prep: Gather Swivel Mount parts, this Offset Extension Adapter, drill, PH1 & PH2 drivers/bits, level, appropriate screws & anchors for your wall structure (Wall screws/anchors NOT included).
Turn OFF power to doorbell wiring at the breaker!
-
Position Offset Ext. Baseplate: Place the adapter on your narrow trim (>= 3/4"). Orient for desired offset direction (L/R) & ensure the **offset screw holes (1/2" from edge)** are over solid structural material (stud, solid wood behind trim, etc.) where screws can securely anchor. The main plate body will likely overhang the narrow surface. Mark hole locations.
Verify solid backing for offset screws! Stability depends on secure fastening here. Ensure plate is level.
-
Secure Baseplate to Wall Structure: Pre-drill pilot holes if needed. Secure the Offset Extension Baseplate firmly to the solid wall structure using YOUR appropriate screws/anchors through the offset holes.
Use robust fasteners suitable for the load and wall material. Do not overtighten into the plate itself.
-
Mount Swivel Base to Adapter: Route wires through the standard **Swivel Mount Base**. Align it onto the now-mounted Offset Extension Baseplate using the **2-5/8" spaced holes**. Attach the swivel base firmly to the adapter plate using the small screws **provided with THIS adapter** (likely #4 / PH1 driver).
Do not overtighten screws into the adapter plate's threaded inserts.
- Continue Swivel Mount Install: Proceed with the standard installation steps for your swivel mount (attach swivel bracket, set angle, wire doorbell, attach doorbell, finalize angle) as detailed in the main swivel mount instructions.
Follow safety rules & wiring guidelines. Selecting appropriate wall screws/anchors for the offset holes is crucial. Verify solid structure behind screw locations before mounting.
Product Visualization
(See listing photos or contact us for images!)
Need Help or Custom Options?
Unsure if this complex adapter is the right solution? Need a different extension length or custom hole spacing?
- Email: shop@doorbellmount.com (Send pictures!)
- Text/Call: 1-833-326-6868 (Text pictures!)
Color Information: This adapter will match the color selected for your main Swivel Mount order (default Black). For other colors, add the Color Change Request.
Add-On Baseplate Only: This listing is for the Offset Narrow Extension Baseplate ONLY. The Adjustable Swivel Mount and doorbell must be purchased separately. Wall mounting hardware (screws/anchors for attaching plate to wall structure) is NOT included.
Installation Requirement: Requires careful placement to ensure offset screw holes engage with solid structural material behind or beside narrow trim.
3D Printed Quality: Manufactured using 3D printing (PETG). Minor cosmetic variations or layer lines may occur but do not compromise strength or function.
The ultimate fix for narrow trim, offset needs, AND extension! Order your Offset Narrow Extension Baseplate today - remember to select the desired length!
