Top 10 Best metal electrical box in 2026

Last Updated - 6/10/2026

🏆Best Choice

Sigma Engineered Solutions

SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug and Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang Box

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•WEATHERPROOF PROTECTION: Enjoy the outdoors, rain or shine, with weatherproof protection for in-use plugs and outlet boxes, significantly increasing electrical safety.
•FLEXIBLE INSTALLATION OPTIONS: Easily mount this unit in a vertical or horizontal position, with (3) 1/2-in knockouts and 18.3 cu in. capacity.
•INCLUDES: Pre-installed ground screw, closure plugs, mounting lugs and (2) NO. 8-32 UNC-2A X 0.25-in self tap screws.
•RELIABLE DURABILITY: Die-cast construction and powder-coated design provide exceptional corrosion resistance, ensuring long-term reliability and performance in all-weather environments.
•SECURE INSTALL: Provide a junction for conduits or house a single wired device. Features a ground screw for electrical safety. Requires 1" screw (not included) for mounting to surface.

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$5.28

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JINDOUZI

Steel Electrical Junction Box, Indoor&Outdoor Electrical Enclosure Box, Wall Mounted Waterproof&Dustproof Metal Box, Universal Electric Equipment Enclosure Box with Safety Locks and Mounting Plates

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•THICK STEEL ELECTRICAL BOX: The electrical box is made of 1mm thick cold-rolled steel plate, and the overall paint protection, durable structure, with strong wear resistance, can well protect your electrical equipment in harsh environments;
•MOISTUREPROOF AND DUSTPROOF ELECTRICAL ENCLOSURE: The door frame of the electrical enclosure adopts a groove waterproof design, coupled with waterproof rubber strips, so that the electrical box has a good moisture-proof and dust-proof effect. The electrical enclosure is suitable for outdoor use, but must be used in a sheltered environment
•JUNCTION BOX WITH SAFETY LOCK: The junction box is designed with a high-strength hinge cover, and a safety lock cylinder is added to effectively prevent others from opening the electrical box by mistake, protecting electrical equipment and personal safety; thickened locks enhance the closing ability of the box door , strengthen the firmness of the junction box;
•EXQUISITE ELECTRICAL BOX: The junction box is equipped with a removable galvanized mounting plate, which is convenient for the installation of electrical components. 2 whole wire troughs, which is convenient for the arrangement of wires; the structure of the electrical junction box is designed with rounded corners to prevent the electrical box equipment or personnel from being scratched by sharp metal;
•SIMPLE INSTALLATION: There are 4 installation holes on the back of the electric box. According to the installation environment, you can choose a wall-mounted iron sheet or an expansion nail for fixed installation; there are wire inlet holes at the bottom of the electric box, loosen the screws, you can enter and exit the cable, and the installation is simple;
•PLEASE NOTE BEFORE PURCHASING: This electrical box has certain moisture and dust resistance, but cannot be waterproof and cannot be used in unobstructed or exposed rainy weather

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$38.32

$44.99

-15%

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Copkim

Copkim 12 Pcs Electrical Box Junction Box Galvanized Steel Metal Electrical Boxes, 1/2'' and 3/4'' Knockouts, Drawn Construction, Silver (4 x 2 Inch,Rectangular)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Convenient Quantity: get a practical set of 12 electrical boxes in one purchase; With a generous 13.0 Cu; In; Capacity, this junction box can accommodate many electrical connections and components; It provides sufficient space for wires, connectors, and other electrical accessories, preventing overcrowding and ensuring proper wire management
•Quality Material Construction: each electrical box is made from quality galvanized steel, known for its durability and rust resistance; This assures you of a product that lasts longer and stands up to the demand of your electrical installations; It is resilient and less likely to break down over time, the quality materials are suitable for use in 2 hour fire rating wall
•Functional Design: with 10 pieces of 1/ 2'' knockouts, These knockouts are easily removable, allowing for quick and convenient installation of various electrical conduits and cables; Whether you're dealing with small - diameter wires or larger - gauge cables, the multiple knockout sizes ensure a suitable fit
•Standard Size: the metal outlet box is about 4 x 2 inches, offers enough space to safely hold electrical wires and devices, offers ease while installing and providing a neat, suitable for most 4 inch electrical boxes, measure the junction box before ordering
•Versatile Application: the metal electrical box can be applied for a multitude of applications, from a simple installation to replacing an existing box; Whether for residential applications, home renovations, upgrade projects or commercial construction these boxes have got you covered; Is the ideal choice for all your electrical junction box needs; It offers durability, safety, versatility, and ease of use, making it an ideal product in the market

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$33.99

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YETLEBOX

YETLEBOX Waterproof Electrical Box, IP67 Junction Box Stainless Steel Latch Hinged Grey Cover Project Enclosure with Wall Bracket 11.1"x7.5"x5.5"

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•[Easy to Customize and Install]:The outdoor waterproof electrical box includes mounting plate that allow you to mount your board or device in the project box easily. Also come with 4 stainless steel wall brackets can be used to hang the junction box on walls.when you need to connect wires you can use 1/2" NPT cable glands are included .This junction box can be drilled and shaped easily without cracking,helping you customize any projects effortlessly.
•[Stainless Steel Latches and Outdoor Use]:This weatherproof outdoor box with black seal gasket and 304 stainless steel latches,sturdy and durable,protecting against water and dust infiltration,great for use in outdoor environments.
•[IP67 Grade]:IP67 waterproof grade, which means dust-tight and protected from moisture challenges up to jetting water, keep all your electrical equipment Safe & Dry even in harsh environments.
•[More Sturdy]:Made of high quality ABS plastic which has longer serve time and superior in impact resistance. Sturdy junction box can offer well protection for your projects in outdoor.
•[Versatile Application]:This outdoor enclosure is made of ABS plastic,receives WiFi signals well, Great for switch,router, wifi extender, power supply,pump controller, home DIY projects, and etc.This versatility gives you more flexibility to DIY.

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$15.99

$16.99

-6%

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XGGYA

XGGYA Electrical Box Metal Outlet Boxes,4"×2" Handy Box 1-Gang and Metal Outlet Box Cover,Duplex Receptacle,Galvanized Steel,8 * 1/2'' in Side and 2 * 1/2'' in Bottom Knockouts(Pack of 4)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•【UL Certification】: Our utility electrical box is tested by UL514A before delivery to ensure safety and compliance,and the structure is strong
•【GALVANIZED STEEL STRUCTURE】: The metal electrical outlet box made of galvanized steel so that it has strong durability and corrosion resistance, enabling products to be used both indoors and outdoors
•【FLEXIBLE INSTALLATION】: The metal handy box has ten knockouts which means you can choose the entry position freely, and there is a ground emboss at the bottom for easy installation of ground screws and ground wires
•【A WIDE RANGE OF APPLICATIONS】: Our metal electrical outlet boxes can be used in environments with high safety requirements, 4x2 electrical box are solid and heat-resisting, which brings safe to user
•【PACKAGE CONTENTS】:Metal outlet box ×4(4×2-1/8×1-7/8",1.6 mm Thick) ;Metal outlet box cover×4(4×2-1/8",0.8 mm Thick)

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$20.99

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Wiegmann

Wiegmann SC060604 SC-Series NEMA 1 Screw Cover Wallmount Pull Box with Knockouts, Painted Steel, 6" x 6" x 4",Gray

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Designed for use as a junction box and pull box in commercial and general industrial applications. Flush covers must be ordered separately for flush mount applications
•Color: ANSI-61 gray textured
•Material: 16 gauge carbon steel
•Standard: UL, CSA
•Construction: Spot welded

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$22.00

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RACO

Hubbell-Raco 239 4 in. Square Plenum Box, Eleven 1/2 and Five 3/4 in. Knockouts, Drawn, 2-1/8 in. Deep, Gray

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Drawn construction
•UL Listed
•30.3 cu. in. capacity

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$11.43

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RACO

Hubbell Raco 4 in. x 2 in. Handy Box, Welded, 2-1/8 in. Deep, Eight 3/4 in. KO's, Gray (674)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•With proper fitting can be used for conduit, nmsc, armored, metal clad, flex cable
•Popular for exposed work applications (surface mounting may require conduit)
•16.5Cu. In. Capacity
•Made of pre-galvanized steel
•The product is ul listed

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$6.16

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AIRTAK

1 Gang Heavy-Duty Metal Electrical Outlet Box - Galvanized Steel Enclosure, 10 x 1/2" & 6 x 3/4" Pre-Punched Knockouts, Silver (4" x 2"),UL Listed (1)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•[Structural Material]:Engineered for maximum reliability, our heavy-duty galvanized steel boxes deliver exceptional durability and fire resistance - certified for 2-hour firewalls while maintaining superior structural stability.
•[Product size]:This 1-piece electrical box set includes 4" x 2" metal junction boxes and matching duplex receptacle covers, each offering 21 cu. in. capacity - perfect for both home renovations and commercial construction projects. The durable galvanized steel construction ensures long-lasting performance for all your electrical installation needs.
•[Easy to install]:Our electrical boxes feature a user-friendly design with ultra-shallow profiles for direct stud mounting. The multi-function screws enable quick fixture attachment using standard flathead drivers, minimizing complexity and eliminating the need for professional installation
•[Scope of application]:Ideal for home renovations, construction projects, and commercial installations, our durable square electrical boxes adapt seamlessly to any electrical system with their multifunctional design.
•[UL certified]:These UL-listed galvanized steel ceiling junction boxes are crafted from premium steel for superior durability and extended service life. The robust construction reliably meets all electrical wiring requirements, making them ideal for long-term ceiling installations with stable performance

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$8.27

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DIFFWELY

4 Inch Square Electrical Box,1-1/2'' Deep Metal Electrical Box,1/2'' and 3/4'' Knockouts(1 Pack)

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•4 inch square electrical junction box fit for enclose wire connections, sockets,switches or fixtures.
•Electrical outlet box versatile usage, this electrical box has ten 1/2" knockouts and six 3/4" knockouts.
•The capacity of this 4-inch 2 gang electrical box is 21.0 cubic inches. It is 4 inches square and has a depth of 1-1/2 inches. The metal electrical box size of the box is 2-gang, the single toggle switch cover, can only accommodate 1-gang.
•This electrical boxes for outlets is made of high-quality material to durableresistant to high temperatures and corrosion resistant.
•We have Perfect after-sales service,If you have any questions about our square junction box metal , please contact us and we will replace or return them for you as soon as possible. Please feel free to purchase with confidence.

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$8.99

$9.99

-10%

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