Electrical box spacers are vital components for installations in both commercial and residential buildings. These spacers are crucial for ensuring proper air ventilation and electrical safety, making it important to select the correct ones. The ideal electrical box spacers will promote efficient airflow, minimize the risk of overheating, and adhere to safety regulations. Given the wide array of options available, it’s imperative to pick the product that best suits your requirements.
The best electrical box spacers should be made of high-quality, non-conductive material, which provides a stable and secure space between the electrical device and the wall. It should also be heat-resistant and durable, offering years of trouble-free use. Using an inappropriate electrical box spacer can lead to overheating, which in turn can damage the electrical components and increase fire risk.
When purchasing your electrical box spacer, it’s necessary to consider the material, dimensions, and load capacity. The spacer should be constructed from a non-conductive material, most commonly plastic or nylon, to prevent heat conduction. It’s also crucial to choose spacers that are compatible with the type of electrical box and device you’re working with.
In this article, we will take you through the process of choosing the best electrical box spacer. We have meticulously tested and surveyed various types to identify the most effective, safe, and efficient options. By the end of this article, you will be equipped with all the necessary knowledge to choose an electrical box spacer that meets the highest safety standards and ensures optimal performance for your electrical installations.
Best Electrical Box Spacer
Choosing the right electrical box spacer depends on several factors, including the material, dimensions, and load capacity. Most importantly, your spacer should be made of durable, non-conductive material capable of withstanding high temperatures. With so many options available, it can be a daunting task to pick the best one. Therefore, we have curated a list of the most suitable electrical box spacers based on our intensive testing and analysis, to help you with your decision.
Electrical Box Spacers Single Gang 3/8 inch 5 pack

If you’re looking for a simple and effective solution to make your single gang electrical boxes deeper, the Electrical Box Spacers Single Gang 3/8 inch 5 pack is a great option.
Pros
- Made in the USA
- Universal compatibility
- Simple and effective design
Cons
- Only comes in a pack of 5
- Only works for single gang boxes
- May not be enough for larger projects
We’ve used these electrical box spacers in a few projects and they’ve worked great. They’re made of high-quality plastic and are very durable. We appreciate that they’re made in the USA and that they’re universal, so we know they’ll work with any brand of electrical box.
One thing to note is that these spacers only come in a pack of 5, so if you need more than that, you’ll need to order multiple packs. Additionally, they’re only designed for single gang boxes, so if you need to make larger or multiple boxes deeper, you’ll need to use a different product.
Overall, we think the Electrical Box Spacers Single Gang 3/8 inch 5 pack is a great option for anyone looking to make their single gang electrical boxes deeper. They’re simple, effective, and made of high-quality materials. If you need to make more than 5 boxes deeper, you may need to order multiple packs, but for most projects, this pack should be more than enough.
148Pcs Outlet Spacers for Electrical Box with 10Pcs Long Electrical Outlet Screws, Electric Switch and Receptacle Spacers Socket Outlet Shims Extender Kit for Tile Backsplash Loose Outlet Plug Fix

If you’re looking for a reliable and versatile outlet spacer kit, the 148Pcs Outlet Spacers for Electrical Box with 10Pcs Long Electrical Outlet Screws, Electric Switch and Receptacle Spacers Socket Outlet Shims Extender Kit for Tile Backsplash Loose Outlet Plug Fix is a great option.
Pros
- The kit includes 148 pieces of outlet spacers, which is more than enough to cover most projects.
- The spacers are made of high-quality plastic and come in different sizes, making them suitable for various outlet types and applications.
- The package also includes 10 long electrical outlet screws, which can be used to secure the spacers in place.
Cons
- Some users have reported that the spacers are not thick enough to support heavy-duty outlets, so it’s important to choose the right type of spacer for your project.
- The kit does not include any instructions or guidelines, so it may take some trial and error to figure out how to use the spacers properly.
- The plastic material of the spacers may not be as durable as other materials, so they may need to be replaced after a few uses.
Overall, we found the 148Pcs Outlet Spacers for Electrical Box with 10Pcs Long Electrical Outlet Screws, Electric Switch and Receptacle Spacers Socket Outlet Shims Extender Kit for Tile Backsplash Loose Outlet Plug Fix to be a great value for the price. The kit is easy to use and can save you a lot of time and effort compared to trying to fix loose outlets without any spacers.
If you’re in need of an outlet spacer kit and don’t want to spend a lot of money, this one is definitely worth considering. Just be sure to choose the right type of spacer for your project and keep in mind that the plastic material may not be as durable as other materials.
320 Pcs Electrical Outlet Screws Spacers, Black Nylon Round Spacer Assortment Kit, Plastic Spacers Without Threaded, Switch and Receptacle Spacers for Screws

If you’re looking for a reliable and durable electrical outlet screws spacer kit, the 320 Pcs Electrical Outlet Screws Spacers by DABIGER is a great option.
Pros
- The kit includes 320 pcs nylon electrical outlet spacers, which are suitable for most screws on the market, including toggle bolt spacers, drywall anchors, and screw spacers.
- The nylon material is lightweight, durable, and easy to install, making it a great choice for DIY enthusiasts and professionals alike.
- The kit is compatible with most electrical outlets, including single-pole, double-pole, and three-way switches, making it a versatile option for any home improvement project.
Cons
- The kit only includes black nylon round spacers, which may not be suitable for all electrical outlet designs and colors.
- Some users have reported that the spacers are too thin for certain applications, so it’s important to measure your screws and outlets before purchasing.
- While the kit is affordable, it may not be the most cost-effective option for larger home improvement projects.
Overall, we highly recommend the 320 Pcs Electrical Outlet Screws Spacers by DABIGER for anyone looking for a reliable and easy-to-use electrical outlet screws spacer kit. With its durable nylon material and compatibility with most electrical outlets, it’s a versatile and practical option for any home improvement project.
Outlet Spacers for Electrical Box, RonJea 48 PCS Switch and Receptacle Spacers for Loose Outlet Plug Fix, Electrical Extender Outlet Shims Light Switch Spacer

If you’re looking for an easy and affordable solution to fix loose outlet plugs, the RonJea Outlet Spacers are a great option to consider.
Pros
- The set comes with 48 pieces, which is more than enough to cover all your outlets and switches.
- Made of high-quality plastic, these spacers are durable and long-lasting.
- Installation is a breeze, and the spacers can be easily adjusted to fit different outlet sizes.
Cons
- Some users have reported that the spacers are not thick enough to solve the problem of loose outlet plugs.
- The plastic material may not be as sturdy as some users would like.
- While the set comes with a variety of sizes, some users may still need to trim the spacers to fit their outlets.
Overall, we highly recommend the RonJea Outlet Spacers for anyone looking for an affordable and easy-to-use solution to fix loose outlet plugs. With a set of 48 pieces, you’ll have more than enough to cover all your outlets and switches. The high-quality plastic material ensures durability and long-lasting performance, and the simple installation process makes it easy to use even for those with little DIY experience.
Outlet Spacers for Electrical Receptacle Box: 60Pcs Plastic Shim Spacers – Ideal for Electric Wall Switch – Receptacle Extenders Stackable Spacer for Sockets Plugs Washer Screws

If you’re looking for a simple and effective solution to prevent your outlet covers from falling off, then the Outlet Spacers for Electrical Receptacle Box is a great choice.
Pros
- Made of high-quality plastic that is safe to use around electrical outlets.
- Easy to install and can be done without any tools.
- Stackable design that allows for easy installation and removal.
Cons
- May not fit all outlet cover sizes.
- Some users have reported that the spacers are too thick for their needs.
- May require additional spacers for larger outlet covers.
We have used the Outlet Spacers for Electrical Receptacle Box and found it to be a simple and effective solution to prevent our outlet covers from falling off. The high-quality plastic material is safe to use around electrical outlets and the spacers are easy to install without the need for any tools.
The stackable design of the spacers makes it easy to install and remove them as needed. However, some users have reported that the spacers are too thick for their needs, and may require additional spacers for larger outlet covers. Additionally, the spacers may not fit all outlet cover sizes, so it’s important to measure your outlet covers before purchasing.
Overall, if you’re looking for a simple and effective solution to prevent your outlet covers from falling off, then the Outlet Spacers for Electrical Receptacle Box is a great choice.
Buying Guide
When it comes to choosing the best electrical box spacer, there are a few key features to consider. Here are some factors to keep in mind:
Material
The material of the spacer is an important consideration. It should be durable and able to withstand the rigors of electrical work. Common materials include plastic, metal, and rubber. Each has its own advantages and disadvantages, so it’s important to choose the one that best suits your needs.
Size
The size of the spacer is another important factor. It should fit comfortably between the electrical box and the wall or other surface. Make sure to measure the space carefully before choosing a spacer.
Insulation
If you’re working with live wires, it’s important to choose a spacer that provides adequate insulation. Look for spacers with a high voltage rating to ensure that you’re properly insulated.
Ease of Installation
Finally, consider the ease of installation. Look for spacers that are easy to install and remove, as this can save you time and frustration on the job.
By keeping these factors in mind, you can choose the best electrical box spacer for your needs.