Universal Electrical Box Spacer - Outlet and Switch Leveling Aid

Introduction

This 3D-printable spacer is designed to solve common issues with recessed or loose electrical outlets and switches. It fits between the device (outlet or switch) and the electrical box, ensuring a secure, flush installation.

Key features

Universal fit for US and US-compatible electrical boxes. Prevents sunken outlets and switches. Improves device stability. Easy to install. Perfect for both professional electricians and DIY enthusiasts, this spacer helps achieve a clean, professional-looking finish in electrical installations.

Use it to:

Level misaligned outlets or switches Provide additional support for devices Compensate for shallow electrical boxes Ensure a tight fit against wall surfaces Compatible with standard US electrical boxes and devices, including single-gang and multi-gang configurations.

Usage

Simple

Download one of the pre-made STLs. They are 3.2mm (~ 1/8" thick). Print multiples and stack them as needed, or scale on the Z-axis with your slicer (every 100% scaling on the Z-axis will add 3.2mm (~1/8') to the thickness of the spacer.

Advanced (Parametric)

Open the model in OpenSCAD and adjust the following parameters as needed:

numberOfGangs specifies the number of slots in the electrical box (should select ≥ 1 to as many as your printer and/or wall box support!)

spacerThickness specifies the thickness of the spacer in millimeters

For example, the parameters below will build a 15mm thick spacer for a 3-gang electrical device box:

numberOfGangs = 3;

spacerThickness = 15;