• Southwire Smart Box 3-Gang Adjustable Depth Device Box
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Southwire Smart Box 3-Gang Adjustable Depth Device Box

$17.57
$5.28
70% off

Reviewers mentioned

See 42 reviews
Easy to install
Sturdy
Southwire Smart Box 3-Gang Adjustable Depth Device Box

Reviewers mentioned

See 42 reviews
Easy to install
Sturdy

Southwire Smart Box 3-Gang Adjustable Depth Device Box

$17.57
$5.28
70% off
Found at 10 stores ·Prices updated 8 days ago 
Store
Amazon
Southwire MSB3G Three Device Adjustable Depth, Heavy Duty 42lb. Mounting Screws Included 3-Gang PVC Electrical Box, Original Version
$5.28 
as of 08:49 11/23
Blain's Farm & Fleet
$5.89 
Family Hardware
$6.23 
Gordon Electric
$6.75 
Hardware World
$6.91 
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Reviews

Exactly what was need for the project

Works extremely well

GLE4 · Review provided by Lowe's
May 31, 2024

Sturdy and versatile.

Sturdy versatile box can be used in both new and old work, and repositioned when necessary.

tracpenfol-0 · Review provided by eBay
March 14, 2024

Angle screws make easy attachment to stud

I like the angled screws, better than th boxes with nails, and the remodel boxes with tabs

Hammertime · Review provided by Lowe's
February 27, 2024

It’s small

Came in as described and on time, wish my contractor was on time, product came in good shape

Timmy · Review provided by Lowe's
January 03, 2024

Perfect for my application.

Fit my application perfect. Went from a two gang to this three gang without drywall repair being necessary. The design with mounting screw location is perfect. Biggest issue was removing the old two gang nail on box without damaging the drywall. I am well pleased with this and would definitely recommend this box for adding a gang without removing drywall. It mounts very securely, unlike the tab type drywall boxes. Just needs a stud at one side..

tonyb2760 · Review provided by Lowe's
September 23, 2023

Highly recommend.

Low cost, nice having the angled mounting screws. Great for new or old work use.

Brent · Review provided by Lowe's
September 20, 2023

screws on the inside ets you install or remove eas

rock soid and easy to install

booballoon · Review provided by Lowe's
July 28, 2023

Perfect fit

Perfect switch box for the job and one quality piece.

Callmechuck · Review provided by Lowe's
June 02, 2023

box is worth the cost

Easy to use

Oneeyedfatman · Review provided by Lowe's
April 20, 2023

cost

solved problem with connection to the panel supply

Lindalou · Review provided by Lowe's
March 14, 2023

Product should be used by a qualified electrician.

This product performed as expected and is a quality made product.

Hugh1 · Review provided by Lowe's
December 27, 2022

3 gang box

Good quality and easy to install three gang electric box.

Dhwol · Review provided by Lowe's
December 13, 2022

Great

Just what I needed, took care of the job I bought it for.

Uncle Al · Review provided by Lowe's
December 07, 2022

Very durable hard plastic

Very durable hard plastic that I think would last long and keeps all the wires safe.

Jonie · Review provided by Lowe's
November 19, 2022

Easy install for kitchen

Easy to install and should be incredibly durable for years to come

JDDS · Review provided by Lowe's
November 05, 2022

Electrical Box

These boxes are the best for outlets/electrical boxes which require structural strength. As these were going to house outlets, which I planned on plugging/unplugging often, I wanted extra strenth, especially the 2-gang holding both the twist lock plug (NEMA L5-15P), and a switch. These were easy to mount, using the included screws. Cut the dry wall a little on the tigher side, so that it will hold the box in place as it is screwed to the wall stud.

Davidlee · Review provided by Lowe's
November 03, 2022

Lowes was the best place to buy this type of box.

This box was exactly what I needed and was both wide and deep for easy wiring.

Canuck1 · Review provided by Lowe's
October 27, 2022

As expected

These screw on triple gang boxes seem to hold square better that the nail on type. Primarily because I tend to over-sink the nails

steve · Review provided by Lowe's
October 25, 2022

Very cool old work box, the pre-set screws made installation very easy and foolproof. great for home improvement.

Excoastie · Review provided by Lowe's
June 17, 2022

I needed the extra depth of the box for a...

I needed the extra depth of the box for a particliar application and also for three switches.

Ronnie · Review provided by Home Depot
November 10, 2021
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Customer pictures

Overview

We found this at 13 stores including Walmart, Blain's Farm & Fleet, and Family HardwareThis product sells from $5.28 up to $17.57. Users can save 69% by shopping at Amazon.

This is the lowest price we've seen, typically ranging from $10 to $19.

This product is also marketed as the 

Madison Electric 57 cu. in. 3 Gang Electrical Box, Gray at Walmart

,

Southwire MSB3G Three Gang Device Box with Depth Adjustable; Heavy Duty 42lb at Walmart

,

Southwire Smart Box 3-Gang Adjustable Depth Device Box at Walmart

,

Southwire MSB3G Three Device Adjustable Depth, Heavy Duty 42lb. Mounting Screws Included 3-Gang PVC Electrical Box, Original Version at Amazon

.

Description

This Madison Electric 3-Gang Electrical Box offers durability with its heavy-duty PVC construction. Ideal for uncertain wall surfaces, it mounts easily to wood or metal studs, providing stability and rigidity. UL Listed for safety.