10 Best Round Electrical Box Extension for 2024

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As an expert content writer, the task of exploring and recommending the best round electrical box extensions for the year 2023 presents an exciting opportunity. A round electrical box extension serves as a valuable tool for homeowners, electricians, and DIY enthusiasts by allowing them to extend the depth of their electrical boxes, making them suitable for various electrical wiring projects. By thoroughly researching and analyzing the available options, we can confidently curate a curated list of the ten best round electrical box extensions that provide superior functionality, durability, and ease of installation. Stay tuned for the comprehensive guide that will ensure your electrical box needs are met effortlessly in 2023.

iMBAPrice BE1R Electrical Ceiling Box Extender

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Overall Score: 8.5/10

The iMBAPrice BE1R Electrical Ceiling Box Extender is a versatile solution for extending and accommodating shallow boxes on 3-1/2 inch and 4 inch round or octagonal set back ceiling boxes. Manufactured from flame-retardant plastic, it ensures safer installations. This box extender is trimmable and can adjust to the exact thickness of your installation, making it ideal for use with granite backsplashes and in-cabinet mounting. Its slim design allows it to fit well within walls, leaving no gap for sparks. With positive reviews from customers, this product offers a perfect solution for extending and updating electrical boxes in older homes or solving installation issues. Highly recommended!

The iMBAPrice BE1R Electrical Ceiling Box Extender is a reliable and versatile product that provides an efficient solution for extending and updating electrical boxes. With its flame-retardant plastic construction and trimmable design, it ensures safer installations while accommodating shallow boxes and obstructions. Whether you need to extend outlets for granite backsplashes or in-cabinet mounting, this box extender delivers excellent performance. It has received positive feedback from customers who have found it to be the perfect solution for their needs. However, some users have mentioned that the construction feels slightly flimsy and that it can be relatively expensive. Overall, the iMBAPrice BE1R is highly recommended for anyone looking to enhance their electrical installations.

Sigma Electric Weatherproof Extension Ring

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Overall Score: 9/10

The Sigma Electric Gray Sigma Engineered Solutions 14236 1/2-Inch 4 Hole Round Weatherproof Extension Ring is a high-quality and durable storage product. It features four 1/2-in knockouts and a capacity of 16.5 cu. in., making it perfect for increasing the capacity of a 4-in round weatherproof box. The extension ring comes with closure plugs and a gasket for added convenience. Its reinforced connector outlets ensure a secure installation, while the die-cast metal construction and powder coating provide corrosion resistance. With its gray color and dimensions of 4.20Lx4.20Wx1.60H, this extension ring is a reliable choice for any storage needs. It has received a customer rating of 4.7/5, indicating its popularity and positive reviews from users.

The Sigma Electric Gray Sigma Engineered Solutions 14236 1/2-Inch 4 Hole Round Weatherproof Extension Ring is a reliable choice for those in need of additional storage capacity for their 4-inch round weatherproof boxes. With its high-quality construction and corrosion resistance, it offers both durability and convenience. The included closure plugs and gasket make installation seamless, and the reinforced connector outlets ensure a secure fit. The positive customer reviews and high rating of 4.7/5 highlight the satisfaction of users with this extension ring. Whether you’re a professional or a DIY enthusiast, this product will meet your storage needs with ease.

Hubbell-Raco 111 Extension Ring Ceiling Outlet Box

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Overall Score: 7/10

The Hubbell-Raco 111 Extension Ring Ceiling Outlet Box is a metallic, 1-1/2" deep octagon extension box with a cubic inch capacity of 11.8". It features four 1/2" side knockouts and a diameter of 3-1/2". This extension box is ideal for extending wall sconce boxes for stone veneer installations or any other situation requiring additional depth. It is made of solid galvanized steel and comes with screws for easy installation. However, it is important to note that its actual measurement is 3.165" instead of 3.5" as advertised. The Hubbell-Raco 111 Extension Ring Ceiling Outlet Box is a well-made and high-quality product, but it can be hard to find in local hardware stores.

The Hubbell-Raco 111 Extension Ring Ceiling Outlet Box is a reliable and well-made product that serves its purpose effectively. It provides the necessary extension for wall sconce boxes in various installations, including stone veneer applications. The solid galvanized steel construction ensures durability, while the included screws facilitate easy installation. However, it is important to be aware of its actual measurement, which is 3.165″ instead of the advertised 3.5″. Additionally, finding this specific size extension box in local hardware stores can be challenging. Despite these drawbacks, the Hubbell-Raco 111 Extension Ring Ceiling Outlet Box is a recommended choice for those in need of a high-quality and functional extension solution.

Ceiling Box Extender for 3.5" and 4" Round or Octagonal Boxes

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Overall Score: 8/10

The iMBAPrice BE1R-2 (2-Pack) 1-Gang 4.35-Inch x 1.5-Inch Plastic Electrical Ceiling Box Extender is the perfect solution for extending round or octagonal set back ceiling boxes. Manufactured from flame-retardant plastic material, this box extender ensures safer installations. It can accommodate shallow boxes and avoids obstructions, making it flexible for various applications. With its 4.35-inch diameter and octagon shape, it provides ample space for extending the electrical box. The extender comes in a pack of two and includes extra long screws, ensuring convenience during installation. However, it's important to note that the screws might be too big for some American round boxes, and modifications may be required for boxes with one pair of holes. Additionally, the diameter of the tabs is larger than advertised, which can cause inconvenience when fitting certain light fixtures. Overall, the iMBAPrice BE1R-2 Box Extender is a high-quality product that offers safety and flexibility for electrical installations.

The iMBAPrice BE1R-2 Box Extender is a reliable and flexible solution for extending round or octagonal set back ceiling boxes. Its flame-retardant plastic construction ensures safety during installations, while its ability to accommodate shallow boxes and avoid obstructions adds convenience. The inclusion of extra long screws and a pack of two extenders enhances its value. However, it’s worth considering that some American round boxes may require different screws, and modifications may be necessary for boxes with one pair of holes. The larger diameter of the tabs can also be inconvenient when fitting certain light fixtures. Despite these minor drawbacks, the iMBAPrice BE1R-2 Box Extender remains an excellent choice for efficient and secure electrical box extensions.

4 inch round, 1/2 inch thick outlet/electrical spacer – 3 pack

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Overall Score: 8.5/10

The 4 inch round, 1/2 inch thick outlet/electrical spacer is a perfect solution for creating space between a circular outlet and wires in a garage ceiling gang box. Made of sturdy plastic, this spacer is easy to install and provides a secure anchor for mounting electrical devices. With its versatile design, it can also be used for mounting ceiling fans or filling additional space between fan boxes and sheetrock. This 3 pack of spacers is a great value and comes highly recommended by customers who found it to be the ideal solution for their electrical projects.

The 4 inch round, 1/2 inch thick outlet/electrical spacer is a reliable and cost-effective solution for creating space between electrical devices and wiring. Its sturdy construction and easy installation make it a popular choice among users. The versatility of this spacer allows for various applications, such as mounting ceiling fans or filling additional space. While some users noted that the slots for screws may not accommodate larger sizes, this can be easily resolved. Overall, this spacer offers great value with a pack of 3 and is highly recommended for anyone looking to complete their electrical projects with precision and convenience.

Greenfield Weatherproof Electrical Outlet Box Extension

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Overall Score: 8/10

The Greenfield Made in The U.S.A. Weatherproof Electrical Outlet Box Extension is a reliable solution for extending outdoor junction boxes to accommodate various electrical fixtures. This extension box is proudly made in the U.S.A and boasts a durable construction with a die-cast aluminium alloy and a corrosion-resistant, weatherproof design. The powder coat finish ensures long-lasting performance. It comes in a sleek white color, blending seamlessly with most exteriors. Installation is a breeze, making it perfect for DIY projects. However, it should be noted that it may require modification to fit standard circular boxes. Overall, this extension box is a great value for the quality and convenience it offers.

The Greenfield Outlet Box Extension is a reliable and well-made solution for extending outdoor junction boxes. Its weatherproof design and durable construction make it suitable for various electrical fixtures. While it may require modification to fit standard circular boxes, it is easy to install and offers great value. Proudly made in the U.S.A, this extension box combines functionality and durability. Whether you need to extend an outdoor junction box for flood lights or other electrical fixtures, this White RB25AWS model from Greenfield is a solid choice.

4 in. Round Pan Box Extension Ring

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Overall Score: 8/10

The 2-Piece 4-inch Round Pan Box Extension Ring is a convenient solution to provide additional wire capacity when mounting ceiling and wall lighting fixtures. Made of zinc-plated steel, it eliminates the need to remove old pan boxes and wiring. With a depth of 1/2 inch, this extension ring is suitable for adding wiring to circuits. Its sturdy construction ensures durability, and it fits perfectly with round or octagon boxes with holes 3 1/2 inches apart. The extension ring comes in an attractive silver color, adding a sleek touch to your fixtures and installations.

The 2-Piece 4-inch Round Pan Box Extension Ring is a reliable and practical solution when you need to add additional wire capacity for your ceiling and wall lighting fixtures. Its sturdy construction and easy installation make it a convenient choice. However, it may be slightly overpriced compared to similar products available locally. Keep in mind that the size refers to the outer diameter, and the inner holes may have a different measurement. Overall, this extension ring offers a durable and efficient way to enhance your electrical installations.

Greenfield Made in The U.S.A. RB25ABRS Weatherproof Electrical Outlet Box Extension, Bronze

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Overall Score: 8/10

The Greenfield Made in The U.S.A. RB25ABRS Weatherproof Electrical Outlet Box Extension in Bronze is a durable and reliable extension box for outdoor electrical outlets. Made in the U.S.A, this box has a durable powder coat finish and is corrosion resistant. The die cast aluminium alloy construction ensures its longevity. It is UL Listed and weatherproof, making it perfect for outdoor use. With a dimension of 4.20Lx4.20Wx1.80H, it is designed to provide a sturdy extension for your electrical outlet. The bronze color adds an elegant touch to your outdoor space. The box extension is easy to install and the gaskets effectively protect it from water damage. Score: 8/10

The Greenfield Made in The U.S.A. RB25ABRS Weatherproof Electrical Outlet Box Extension is a reliable and durable solution for extending outdoor electrical outlets. Made in the U.S.A. with high-quality materials, it provides excellent protection against corrosion and weather damage. The easy installation process and effective gaskets ensure proper functionality. While some users have reported issues with the screws being too short for certain installations, this can be easily resolved by purchasing longer screws. Overall, this box extension offers great value and functionality, making it a solid choice for anyone in need of extending their outdoor electrical outlets.

Legrand Open Base Extension Box

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Overall Score: 8/10

The Legrand – Wiremold GIDDS-751027 Open Base Extension Box is a highly durable and versatile storage product. It adds value to any space and is manufactured in the United States. This box is designed for mounting on 3 1/4" or 4" conduit boxes or other recessed outlets. The ScuffCoat finish provides a tough and scratch-resistant surface that can be overpainted with latex paint. It meets UL5 specifications and can be installed in conformance with ADA requirements. The ivory color and compact size of 4.75" make it suitable for various applications. With a customer rating of 4.6/5, this extension box is well-regarded by users.

The Legrand – Wiremold GIDDS-751027 Open Base Extension Box is a reliable and functional storage solution. Its durability, versatility, and ADA compliance make it ideal for various applications. However, users should be aware of potential issues with hole alignment and incorrect product diameter. Overall, this extension box offers great value and convenience for both professional and DIY projects.

Greenfield Weatherproof Electrical Outlet Box Extension

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Overall Score: 7/10

Introducing the Greenfield Made in The U.S.A. RB25APS Series Weatherproof Electrical Outlet Box Extension in Gray. This extension box is proudly made in the U.S.A and features a durable diecast aluminum alloy construction with a powdercoat finish that is both weatherproof and resistant to corrosion. With its easy installation process, you can quickly and securely extend your electrical outlet box. The gray color blends seamlessly into any outdoor environment. The Greenfield RB25APS Series Extension Box is UL Listed, ensuring its quality and safety. Please note that some customers have reported missing closure plugs, which may affect the product's functionality. Overall, this extension box is a reliable option for extending your electrical outlet box and protecting your outdoor electrical connections.

The Greenfield Made in The U.S.A. RB25APS Series Weatherproof Electrical Outlet Box Extension is a reliable and durable option for extending your electrical outlet box. Its weatherproof and corrosion-resistant design ensures that your outdoor electrical connections are protected. The easy installation process makes it convenient for homeowners. However, it is important to note that some customers have experienced missing closure plugs, which may hinder the product’s functionality. If you are in need of a sturdy and long-lasting extension box, this product is worth considering.

Buyer's Guide: Round Electrical Box Extension

Why do you need a round electrical box extension?Whether you are a hardcore DIY enthusiast or a professional electrician, there might come a time when you need to extend your round electrical box. This could be due to various reasons, such as adding extra electrical devices or when the existing box is buried too deep in the wall. A round electrical box extension can provide you with the necessary space and depth to accommodate your electrical wiring and devices without compromising safety or aesthetics. To help you make an informed decision, here is a buyer's guide for round electrical box extensions.

Types of Round Electrical Box Extensions

1. Plastic Box Extensions: These extensions are made of durable plastic and are designed to fit securely around your existing round electrical box. They are easy to install and act as a seamless extension to provide the required depth.
2. Metal Box Extensions: If you prefer something more sturdy and durable, metal box extensions are a great option. They offer excellent protection for your electrical wiring and devices and ensure long-term reliability.
3. Adjustable Box Extensions: This type of extension is ideal when you need flexibility in terms of depth. The adjustable feature allows you to customize the extension to perfectly fit your specific requirements.
4. Weatherproof Box Extensions: If you need to install electrical devices outdoors, consider using weatherproof box extensions. These extensions are designed to protect against moisture and other environmental factors, ensuring the longevity of your electrical connections.

Factors to Consider

When choosing the right round electrical box extension for your needs, consider the following factors:

• Depth Requirement: Measure the required depth needed for your electrical devices and wiring, considering existing conditions and future needs.
• Material: Decide whether you prefer the durability of metal or the affordability of plastic. Each material has its own advantages, so choose accordingly.
• Installation Ease: Determine how easy it is to install the box extension. Consider if you have the necessary tools and skills, or if you might need professional assistance.
• Compatibility: Ensure that the box extension is compatible with your existing round electrical box. Pay attention to size, shape, and mounting options.
• Aesthetics: If appearance is important to you, consider how the box extension will blend with your wall or surface. Some extensions offer paintable options to match your decor.

Installation Tips

Here are some tips to ensure a successful installation of your round electrical box extension:

• Turn off the Power: Before starting any electrical work, ensure that the power is off at the breaker. Safety should always be the first priority.
• Prepare the Workspace: Clear the area around the existing round electrical box to provide ample space for installing the extension. Remove any obstructions that may hinder the process.
• Follow the Instructions: Carefully read and follow the manufacturer's instructions for installing the specific box extension you have chosen. Each product may have unique installation requirements.
• Secure Mounting: Ensure that the box extension is securely mounted to the existing electrical box. Use the appropriate screws and hardware provided by the manufacturer.
• Test Connections: Once the extension is installed, test the electrical connections to ensure everything is working correctly before completing any finishing touches or closing up the wall.