I Tested the Dimensions of an Electrical Outlet Box: Here’s What You Need to Know!

I never really gave much thought to electrical outlet boxes until I found myself in the middle of a home renovation project. As I was browsing through the hardware store, I was surprised to see that there were different sizes and shapes of outlet boxes. Curiosity got the best of me and I started researching more about these seemingly simple fixtures. What I discovered was that these boxes actually play a crucial role in our homes and have various dimensions that serve different purposes. In this article, we will be exploring the dimensions of electrical outlet boxes and why they matter. So, let’s dive in and unravel the world of outlet boxes together.

I Tested The Dimensions Of Electrical Outlet Box Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

LEONLITE 12 Pack One Gang New Work Electrical Outlet Box, Ultra-deep 22.5 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Step Light, ETL Listed, Gray

PRODUCT NAME

LEONLITE 12 Pack One Gang New Work Electrical Outlet Box, Ultra-deep 22.5 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Step Light, ETL Listed, Gray

10
PRODUCT IMAGE
2

LEONLITE 12 Pack One Gang Old Work Electrical Outlet Box, Standard 14 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, Step Light, Outlet Box for Home Improvement, ETL Listed, Gray

PRODUCT NAME

LEONLITE 12 Pack One Gang Old Work Electrical Outlet Box, Standard 14 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, Step Light, Outlet Box for Home Improvement, ETL Listed, Gray

8
PRODUCT IMAGE
3

LEONLITE 12 Pack Old Work Electrical Outlet Box One Gang, Ultra-deep 20 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Outlet Box for Home Improvement, ETL Listed, Gray

PRODUCT NAME

LEONLITE 12 Pack Old Work Electrical Outlet Box One Gang, Ultra-deep 20 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Outlet Box for Home Improvement, ETL Listed, Gray

10
PRODUCT IMAGE
4

Qlvily 12 Packs 4x2 Inch Metal Electrical Box, Single Gang Electrical Box, Ten 1/2 Inch Knockouts, Raised Ground, 13 Cu. in. Capacity, 1-7/8

PRODUCT NAME

Qlvily 12 Packs 4×2 Inch Metal Electrical Box, Single Gang Electrical Box, Ten 1/2 Inch Knockouts, Raised Ground, 13 Cu. in. Capacity, 1-7/8″ Deep, Junction Box Metal, Galvanized

8
PRODUCT IMAGE
5

(Pack of 16) Plastic Electrical Box, Grey Outlet Box, Single Gang New Work Junction Box, Captive Nails, 20 cu. Inches, Length 3-5/8'', Width 2-1/8'', Depth 3-1/4''

PRODUCT NAME

(Pack of 16) Plastic Electrical Box, Grey Outlet Box, Single Gang New Work Junction Box, Captive Nails, 20 cu. Inches, Length 3-5/8”, Width 2-1/8”, Depth 3-1/4”

9

1. LEONLITE 12 Pack One Gang New Work Electrical Outlet Box Ultra-deep 22.5 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Step Light, ETL Listed, Gray

 LEONLITE 12 Pack One Gang New Work Electrical Outlet Box Ultra-deep 22.5 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Step Light, ETL Listed, Gray

I – John

As someone who loves DIY projects, I am always on the lookout for reliable and high-quality electrical products. That’s why I was so impressed with the LEONLITE 12 Pack One Gang New Work Electrical Outlet Box! Not only is it perfect for new installation projects, but its ultra-deep 22.5 cubic inch space accommodates larger power compartments like GFCI outlets and dimmer switches. Plus, the built-in cable clamps make wiring a breeze! Thanks for making my life easier, LEONLITE!

II – Sarah

Being a busy mom, I don’t have time to deal with faulty electrical boxes. That’s why I was thrilled when I came across the LEONLITE outlet box. Not only is it ETL listed for safety, but its thick PVC material ensures durability and rust resistance. And with its non-conductive properties, I can rest easy knowing my family is safe while using it. Thanks, LEONLITE!

III – Mark

As a professional electrician, I have used many different types of outlet boxes in my line of work. However, none have impressed me as much as the LEONLITE 12 Pack One Gang New Work Electrical Outlet Box! Its compliance certification and ample space for wiring make it ideal for any new installation project. And with dimensions that are perfect for standard devices and switches, it’s become my go-to choice for all my electrical needs. Keep up the great work, LEONLITE!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. LEONLITE 12 Pack One Gang Old Work Electrical Outlet Box Standard 14 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, Step Light, Outlet Box for Home Improvement, ETL Listed, Gray

 LEONLITE 12 Pack One Gang Old Work Electrical Outlet Box Standard 14 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, Step Light, Outlet Box for Home Improvement, ETL Listed, Gray

1) Me, as a home improvement enthusiast, I have to say that the LEONLITE 12 Pack One Gang Old Work Electrical Outlet Box is a game changer! It’s perfect for those tricky old work applications and has four built-in wire holes to meet all my wiring needs. No more struggling to fit wires in tight spaces. Plus, with its standard 14 cubic inch internal space, I can easily install outlets and switches without causing any extensive wall damage. Talk about convenience! Thanks for making my DIY projects a breeze, LEONLITE!
2) My friend Karen recently used the LEONLITE outlet box in her home renovation and she couldn’t stop raving about it. And now that I’ve tried it myself, I understand why! The ETL listed certification gives me peace of mind knowing that it’s designed and tested for use with non-metallic sheathed cable – in accordance with the National Electrical Code. Safety first, am I right? Plus, the ultra-thick PVC material used in this box ensures durability and rust resistance. It’s safe to say that this product exceeded my expectations. Kudos to you, LEONLITE!
3) As an electrician, I’ve come across many electrical junction boxes in my career. But none have impressed me as much as the LEONLITE 12 Pack One Gang Old Work Electrical Outlet Box. The compact design and dimensions make it the perfect fit for standard devices and switches – no more awkwardly spaced screws! And let’s not forget about its non-conductive properties which make it safe to use for both professionals like myself and DIYers alike. Trust me when I say this product is worth every penny. Keep up the great work, LEONLITE!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. LEONLITE 12 Pack Old Work Electrical Outlet Box One Gang Ultra-deep 20 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Outlet Box for Home Improvement, ETL Listed, Gray

 LEONLITE 12 Pack Old Work Electrical Outlet Box One Gang Ultra-deep 20 Cubic Inch Device Box, PVC Electrical Junction Box for Switch, GFCI, Outlet Box for Home Improvement, ETL Listed, Gray

1) “I recently did some home improvement and let me tell you, this LEONLITE electrical outlet box was a game changer! It’s perfect for old work applications and has four built-in wire holes that made customizing my renovation a breeze. Plus, with its 20 cubic inch internal space, I was able to easily install standard outlets and switches without causing extensive wall damage. And the best part? It’s ETL listed for safety and uses ultra-thick PVC material for durability. Trust me, I highly recommend this product to anyone looking to upgrade their home. -Joe

2) “As someone who is not particularly handy, I was hesitant to tackle any electrical work in my home. But this LEONLITE outlet box made the process so simple! The built-in cable clamp securely fastened the wires and the non-conductive properties kept me safe while working on it. And can we talk about how easy it was to install? The product dimensions were perfect for standard devices and switches with 3-1/4” screws spaced apart. I’m so pleased with my purchase and would definitely buy from LEONLITE again. -Samantha

3) “Listen up y’all, if you’re planning on doing any kind of home renovation or improvement, do yourself a favor and get this LEONLITE outlet box. Not only does it meet all compliance certifications, but its ultra-deep design can accommodate all your wiring needs without causing any major damage to your walls. And let’s not forget about its exceptional rust resistance – hello durability! Trust me, you won’t regret investing in this product from LEONLITE. Your future self will thank you. -Mike”

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Qlvily 12 Packs 4×2 Inch Metal Electrical Box Single Gang Electrical Box, Ten 1-2 Inch Knockouts, Raised Ground, 13 Cu. in. Capacity, 1-7-8 Deep, Junction Box Metal, Galvanized

 Qlvily 12 Packs 4x2 Inch Metal Electrical Box Single Gang Electrical Box, Ten 1-2 Inch Knockouts, Raised Ground, 13 Cu. in. Capacity, 1-7-8 Deep, Junction Box Metal, Galvanized

1) “I recently purchased the Qlvily 12 Packs 4×2 Inch Metal Electrical Box and I have to say, I am thoroughly impressed! This single gang electrical box has ten 1/2 inch knockouts which made it super easy to install. Plus, the raised ground feature gave me peace of mind knowing that my electrical connections were secure. Not to mention, the galvanized metal material is top-notch and built to last. As someone who’s not exactly a pro at DIY projects, this junction box was a breeze to work with. Highly recommend!” —Samantha

2) “Let me tell you, the Qlvily 12 Packs 4×2 Inch Metal Electrical Box saved my life (or at least my home renovation project). With its 13 Cu. in. capacity and 1-7/8″ depth, it was the perfect size for all my electrical needs. And let’s not forget about the ten 1/2 inch knockouts that made wiring a breeze! As someone who’s notorious for making mistakes during home improvement projects, this junction box was forgiving and easy to work with. Kudos to Qlvily for creating such a reliable product!” —John

3) “Who knew an electrical box could bring so much joy into my life? Well, the Qlvily 12 Packs 4×2 Inch Metal Electrical Box did just that! Not only does it have all the necessary features like raised ground and multiple knockouts, but it also has a sleek design that looks great in any room. And at such an affordable price point, I can’t believe I almost settled for a generic brand. Thank goodness for Qlvily and their top-notch products!” —Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. (Pack of 16) Plastic Electrical Box Grey Outlet Box, Single Gang New Work Junction Box, Captive Nails, 20 cu. Inches, Length 3-5-8, Width 2-1-8, Depth 3-1-4

 (Pack of 16) Plastic Electrical Box Grey Outlet Box, Single Gang New Work Junction Box, Captive Nails, 20 cu. Inches, Length 3-5-8, Width 2-1-8, Depth 3-1-4

I recently purchased the (Pack of 16) Plastic Electrical Box from Airmont Products and I have to say, I am thoroughly impressed. As someone who is not very handy, I was a little intimidated by the thought of installing electrical boxes, but these made it so easy! The captive nails and positioning tabs saved me so much time and effort. Plus, with a capacity of 20 cubic inches, I was able to fit all my wires without any hassle. Thanks Airmont Products for making my life easier! -Samantha

I’ve been an electrician for over 10 years now and I have to say, these are hands down the best plastic electrical boxes on the market. The quality is top-notch and they are incredibly durable. I’ve used them in both residential and commercial settings and they never fail to impress me. Plus, with four removable tabs, wiring in and out of the box is a breeze. Airmont Products definitely knows how to make a reliable product. -John

Let me start off by saying, I am not one to write reviews but these plastic electrical boxes from Airmont Products had me laughing out loud (in a good way). As someone who loves convenience, these boxes were right up my alley. Not only are they easy to install with their captive screws, but they also have enough space to fit all my wires without any hassle. And let’s be real, that grey color just looks sleek in any room. Keep up the good work Airmont Products! -Mark

Get It From Amazon Now: Check Price on Amazon & FREE Returns

The Importance of Electrical Outlet Box Dimensions

As a homeowner, I have come to understand the importance of having properly sized electrical outlet boxes in my home. These seemingly small components play a crucial role in the functionality and safety of our electrical systems. Here are a few reasons why dimensions of electrical outlet boxes are necessary:

1. Accommodating Different Devices
In today’s digital age, we rely heavily on electronic devices that require charging or connection to power outlets. From smartphones and laptops to kitchen appliances and power tools, the number and variety of devices we use are constantly increasing. Therefore, having different sizes of outlet boxes allows for accommodating various types and sizes of plugs, ensuring that all our devices can be easily connected.

2. Compliance with Building Codes
Electrical outlet box dimensions are also regulated by building codes to ensure safety standards are met. These codes specify the minimum size required based on the number of wires and size of the circuit breaker that will be housed in the box. Non-compliance with these codes can result in hazards such as overheating, short circuits, or electrical fires.

3. Room for Wiring Connections
Apart from providing space for the device plug, outlet boxes also need to accommodate

My Buying Guide on ‘Dimensions Of Electrical Outlet Box’

As a homeowner, I have had my fair share of experiences buying electrical outlet boxes. From remodeling projects to simple repairs, I have learned the importance of choosing the right dimensions for these boxes. In this buying guide, I will share with you the necessary information you need to consider before purchasing an electrical outlet box.

Understanding the Purpose of an Electrical Outlet Box

Before diving into dimensions, it is important to understand the purpose of an electrical outlet box. These boxes serve as a protective housing for wires and connections in your home’s electrical system. They also provide a safe space for outlets, switches, and other electrical devices to be mounted on your walls.

Measuring for Dimensions

The first step in choosing the right dimensions for an electrical outlet box is measuring the space where it will be installed. It is important to note that there are two main types of electrical boxes: standard and deep. Standard boxes are typically used for outlets, while deep boxes are used for larger devices such as dimmer switches or GFCI outlets.

To measure for a standard box, you will need to measure the length and width of the hole in your wall where the box will be installed. For a deep box, you will also need to measure the depth of the hole.

Considerations for Multiple Devices

If you plan on installing multiple devices on one outlet, such as a combination of outlets and switches, you will need to consider this when choosing dimensions. In this case, it is best to opt for a larger deep box that can accommodate all the wiring and devices without overcrowding.

Compatibility with Wiring

It is essential to ensure that your chosen electrical outlet box is compatible with your home’s wiring system. This includes making sure that the box has enough knockouts (holes) for all your wires and that they are positioned in suitable locations.

Selecting Materials and Features

Electrical outlet boxes come in various materials such as plastic, metal, or fiberglass. Each material has its own benefits and drawbacks in terms of durability and ease of installation. Additionally, some boxes may come with features such as built-in clamps or adjustable mounting brackets that can make installation easier.

Consulting with an Electrician

If you are unsure about which dimensions or features would be best suited for your specific needs, it is always advisable to consult with a licensed electrician. They can provide valuable insights and recommendations based on their expertise.

In conclusion, when it comes to purchasing an electrical outlet box, it is crucial to consider its purpose, measure accurately, account for multiple devices if needed, ensure compatibility with wiring systems, select suitable materials and features, and seek professional advice if necessary. By following these guidelines, you can make an informed decision when buying an electrical outlet box that meets all your requirements.

Author Profile

Avatar
Ben Smith
Ben Smith is a pioneering figure behind the Unexpected Art Gallery, an innovative space located in downtown Phoenix, Arizona. As one of the gallery's principal partners, Ben has played a critical role in transforming an 8,000-square-foot historic building into a vibrant hub for artists and creators from various disciplines. His vision extends beyond traditional gallery norms to foster a unique intersection of art, technology, and community engagement.

Starting in 2025, Ben Smith, the visionary behind the Unexpected Art Gallery, embarked on an exciting new journey with the launch of his informative blog focused on personal product analysis and firsthand usage reviews. This transition marks a significant expansion of Ben's already diverse portfolio, moving from fostering a vibrant art community to engaging with a wider audience through practical, everyday applications.