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Show In Stock Only (29)

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ABB (1)
Arlington (3)
DiversiTech (1)
Eaton (4)
Red Dot (2)
Southwire (8)
Steel City (23)

Shape
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Octagon (2)
Rectangle (3)
Round (1)
Square (10)

Length (Inches)
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1/2" (2)
4" (6)
11" (1)
12" (1)
14-1/2" (2)
15" (2)
16" (2)
18" (2)
24" (5)
26-1/2" (2)

Depth (Inches)
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1-1/2" (9)
1-7/8" (3)
1/2" (1)
2-1/2" (1)
2-1/8" (3)
3-5/8" (1)

Product Type
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Adapter (2)
Bracket (12)
Clip (1)
Extension (13)
GFCI Extension Ring (4)
Hanger (5)
Mounting Clip (1)
Ring (3)

Price Range
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$1 to $5 (20)
$5 to $10 (10)
$10 to $15 (5)
$15 to $20 (2)
$40 to $45 (1)
$45 to $50 (1)
$50 to $60 (1)
$60 to $70 (1)
$70 to $80 (1)

Metallic Device Box Extensions & Accessories

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Product Image of 12" - 18" SliderBar Adjustable Box Mounting Bracket
12" - 18" SliderBar Adjustable Box Mounting Bracket
SKU: SL18
Arlington
SKU: SL18
Brand: Arlington
(1)
$3.04 each
BOX UP & SAVE 5%
$72.00 box of 25
$2.88 each
In Stock
Get 2,312 by Thu, Jun 25
In Stock
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Product Image of 4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" and 3/4" Knockouts
4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" and 3/4" Knockouts
SKU: 53151-1/2-3/4
Steel City
SKU: 53151-1/2-3/4
Brand: Steel City
$4.50 each
BOX UP & SAVE 15%
$191.00 box of 50
$3.82 each
In Stock
Get 160 by Thu, Jun 25
In Stock
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Product Image of 4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" & 3/4" Eccentric Knockouts
4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" & 3/4" Eccentric Knockouts
SKU: 531511234UB
Steel City
SKU: 531511234UB
Brand: Steel City
(1)
$6.74 each
In Stock
Get 36 by Thu, Jun 25
In Stock
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Product Image of 16" - 24" Telescoping Stud Box Bracket
16" - 24" Telescoping Stud Box Bracket
SKU: TSGB1624TZ
Southwire
SKU: TSGB1624TZ
Brand: Southwire
$2.99 each
In Stock
Get 55 by Thu, Jun 25
In Stock
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Product Image of 4" x 2-1/8" Deep Square Box Extension Ring w/ 1/2" and 3/4" Knockouts
4" x 2-1/8" Deep Square Box Extension Ring w/ 1/2" and 3/4" Knockouts
SKU: 531711234
Steel City
SKU: 531711234
Brand: Steel City
(2)
$10.60 each
In Stock
Get 42 by Thu, Jun 25
In Stock
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Product Image of 11 - 18" Expandable Telescoping Screw Gun Box Support Bracket
11 - 18" Expandable Telescoping Screw Gun Box Support Bracket
SKU: TSGB16TZ
Southwire
SKU: TSGB16TZ
Brand: Southwire
$3.17 each
In Stock
Get 366 by Fri, Jun 26
In Stock
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Product Image of Single-Gang Adjustable Mud Ring for 4" Square Boxes
Single-Gang Adjustable Mud Ring for 4" Square Boxes
SKU: 52CADJ1612
Steel City
SKU: 52CADJ1612
Brand: Steel City
$8.39 each
In Stock
Get 96 by Thu, Jun 25
In Stock
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Product Image of 4" x 2-1/8" x 1-7/8" Deep Box Extension Ring w/ 1/2" Knockouts
4" x 2-1/8" x 1-7/8" Deep Box Extension Ring w/ 1/2" Knockouts
SKU: 59361-1/2
Steel City
SKU: 59361-1/2
Brand: Steel City
(1)
$4.96 each
In Stock
Get 9 by Thu, Jun 25
In Stock
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Product Image of Two-Gang Adjustable Mud Ring for 4" Square Boxes
Two-Gang Adjustable Mud Ring for 4" Square Boxes
SKU: 52CADJ2
Steel City
SKU: 52CADJ2
Brand: Steel City
$15.51 each
BOX UP & SAVE 15%
$262.60 box of 20
$13.13 each
In Stock
Get 18 by Thu, Jun 25
In Stock
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Product Image of 4" Square Single Gang Device Ring, 1-1/4" Raised
4" Square Single Gang Device Ring, 1-1/4" Raised
SKU: 52C16
Southwire
SKU: 52C16
Brand: Southwire
$2.41 each
In Stock
Get 65 by Thu, Jun 25
In Stock
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Product Image of Old Work Box Support Clip, Adapts to Wall Thickness Up to 3/4"
Old Work Box Support Clip, Adapts to Wall Thickness Up to 3/4"
SKU: OWC
Steel City
SKU: OWC
Brand: Steel City
(1)
$3.35 each
BOX UP & SAVE 15%
$71.00 box of 25
$2.84 each
In Stock
Get 562 by Thu, Jun 25
In Stock
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Product Image of 15" - 24" SliderBar Adjustable Box Mounting Bracket
15" - 24" SliderBar Adjustable Box Mounting Bracket
SKU: SL24
Arlington
SKU: SL24
Brand: Arlington
$4.18 each
In Stock
Get 73 by Thu, Jun 25
In Stock
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Product Image of 4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" Knockouts
4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" Knockouts
SKU: 53151-1/2
Steel City
SKU: 53151-1/2
Brand: Steel City
$4.50 each
In Stock
Get 53 by Thu, Jun 25
In Stock
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Product Image of 4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts
4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts
SKU: 73171-1/2-3/4
Steel City
SKU: 73171-1/2-3/4
Brand: Steel City
(1)
$8.87 each
BOX UP & SAVE 15%
$151.40 box of 20
$7.57 each
In Stock
Get 31 by Thu, Jun 25
In Stock
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Product Image of 4" x 1-1/2" Deep Octagon Box Extension Ring w/ 1/2" and 3/4" Knockouts
4" x 1-1/2" Deep Octagon Box Extension Ring w/ 1/2" and 3/4" Knockouts
SKU: 55151-1/2-3/4
Steel City
SKU: 55151-1/2-3/4
Brand: Steel City
$3.64 each
BOX UP & SAVE 12%
$80.25 box of 25
$3.21 each
In Stock
Get 22 by Thu, Jun 25
In Stock
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Product Image of 7/8" Adjustable Depth Single-Gang Switch Box Extension w/ 1-1/4" Mounting Screws
7/8" Adjustable Depth Single-Gang Switch Box Extension w/ 1-1/4" Mounting Screws
SKU: SBEX
Steel City
SKU: SBEX
Brand: Steel City
$4.14 each
BOX UP & SAVE 12%
$183.00 box of 50
$3.66 each
In Stock
Get 12 by Thu, Jun 25
In Stock
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Product Image of Galvanized Steel Bracket to Stud Box Support, 3-5/8" Depth
Galvanized Steel Bracket to Stud Box Support, 3-5/8" Depth
SKU: C23TZ
Southwire
SKU: C23TZ
Brand: Southwire
$1.41 each
In Stock
Get 290 by Mon, Jun 29
In Stock
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Product Image of 24" Heavy-Duty T-Grid Box Hanger w/ Mounting Clip
24" Heavy-Duty T-Grid Box Hanger w/ Mounting Clip
SKU: 512HDTZ
Southwire
SKU: 512HDTZ
Brand: Southwire
$6.93 each
Out of Stock
Get it by Thu, Jul 9 - Thu, Jul 16
Out of Stock
Get it by Thu, Jul 9 - Thu, Jul 16
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Product Image of 4-11/16" x 1-1/2" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts
4-11/16" x 1-1/2" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts
SKU: 73151-1/2-3/4
Steel City
SKU: 73151-1/2-3/4
Brand: Steel City
$9.41 each
BOX UP & SAVE 17%
$156.80 box of 20
$7.84 each
In Stock
Get 30 by Thu, Jun 25
In Stock
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Product Image of 4" x 1-1/2" Deep Octagon Box Extension Ring w/ 1/2" Knockouts
4" x 1-1/2" Deep Octagon Box Extension Ring w/ 1/2" Knockouts
SKU: 551511/2-25
Steel City
SKU: 551511/2-25
Brand: Steel City
$3.49 each
In Stock
Get 16 by Thu, Jun 25
In Stock
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Product Image of 4" Round Pan Box Extension Ring, 1/2" Deep
4" Round Pan Box Extension Ring, 1/2" Deep
SKU: 57111
Southwire
SKU: 57111
Brand: Southwire
$7.74 each
Out of Stock
Get it by Thu, Jul 9 - Thu, Jul 16
Out of Stock
Get it by Thu, Jul 9 - Thu, Jul 16
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Product Image of 14-1/2" - 26-1/2" Adjustable Bar Hanger w/ Fastener, 50 lbs. Max Load
14-1/2" - 26-1/2" Adjustable Bar Hanger w/ Fastener, 50 lbs. Max Load
SKU: 6011ADW-25
Steel City
SKU: 6011ADW-25
Brand: Steel City
$12.23 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
Backorder
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Product Image of 4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1" Knockouts
4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1" Knockouts
SKU: 731711-TB
Steel City
SKU: 731711-TB
Brand: Steel City
$11.39 each
In Stock
Get 19 by Thu, Jun 25
In Stock
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Product Image of 15" - 24" SliderBar Adjustable Unbent Box Mounting Bracket
15" - 24" SliderBar Adjustable Unbent Box Mounting Bracket
SKU: SL24F
Arlington
SKU: SL24F
Brand: Arlington
$7.12 each
In Stock
Get 24 by Tue, Jun 30
In Stock
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Product Image of 16" Adjustable Bar Box Bracket
16" Adjustable Bar Box Bracket
SKU: SSF-SG16A
Steel City
SKU: SSF-SG16A
Brand: Steel City
$6.05 each
BOX UP & SAVE 18%
$248.50 box of 50
$4.97 each
In Stock
Get 6 by Thu, Jun 25
In Stock
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Product Image of 3 Point Box-to-Stud Mounting Bracket
3 Point Box-to-Stud Mounting Bracket
SKU: SSF-SH2346
Steel City
SKU: SSF-SH2346
Brand: Steel City
$3.62 each
BOX UP & SAVE 15%
$153.50 box of 50
$3.07 each
In Stock
Get 50 by Thu, Jun 25
In Stock
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Product Image of Accessory Clip for TZ512HD
Accessory Clip for TZ512HD
SKU: TZ512CLIP
Southwire
SKU: TZ512CLIP
Brand: Southwire
$1.68 each
In Stock
Get 1 by Thu, Jun 25
In Stock
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Product Image of 2-Gang Square Box Partition
2-Gang Square Box Partition
SKU: 52PD1
Steel City
SKU: 52PD1
Brand: Steel City
$10.14 each
In Stock
Get 2 by Fri, Jun 26
In Stock
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Product Image of Gfci Extension Ring, 7/8 Inch Spacer, White, GFER-W
Gfci Extension Ring, 7/8 Inch Spacer, White, GFER-W
SKU: GFER-W
Eaton
SKU: GFER-W
Brand: Eaton
$1.65 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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Product Image of 1" - 2" Ceiling Box Support Bracket
1" - 2" Ceiling Box Support Bracket
SKU: CBS
Southwire
SKU: CBS
Brand: Southwire
$1.10 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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Product Image of Gfci Extension Ring, 7/8 Inch Spacer, 15A, Led Accent Light, 120 Vac, Black, Single-Pole, GFER-BLK
Gfci Extension Ring, 7/8 Inch Spacer, 15A, Led Accent Light, 120 Vac, Black, Single-Pole, GFER-BLK
SKU: GFER-BLK
Eaton
SKU: GFER-BLK
Brand: Eaton
$1.65 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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Product Image of 16" Horizontal Mounting Bracket
16" Horizontal Mounting Bracket
SKU: SBO16
Steel City
SKU: SBO16
Brand: Steel City
$15.06 each
BOX UP & SAVE 15%
$318.75 box of 25
$12.75 each
In Stock
Get 25 by Thu, Jun 25
In Stock
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Product Image of Single Gang Flanged Extension Adapter, 1-7/8" Deep, Hub Size 1/2", 2 Outlets, 1 on Top & Bottom, IHEF2-1
Single Gang Flanged Extension Adapter, 1-7/8" Deep, Hub Size 1/2", 2 Outlets, 1 on Top & Bottom, IHEF2-1
SKU: IHEF2-1
Red Dot
SKU: IHEF2-1
Brand: Red Dot
$73.49 each
In Stock
Get 4 by Fri, Jun 26 - Mon, Jun 29
In Stock
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Product Image of 24" Span Steel Hanger, T-Grid Box, SSF-TH24
24" Span Steel Hanger, T-Grid Box, SSF-TH24
SKU: SSF-TH24
ABB
SKU: SSF-TH24
Brand: ABB
$47.11 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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Product Image of Hands-Free Swivel Hanger for 4" Square Device Boxes
Hands-Free Swivel Hanger for 4" Square Device Boxes
SKU: SHHF-1/2-3/4
Steel City
SKU: SHHF-1/2-3/4
Brand: Steel City
$40.28 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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Product Image of 4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" & 3/4" Knockouts
4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" & 3/4" Knockouts
SKU: 620-404
DiversiTech
SKU: 620-404
Brand: DiversiTech
$7.84 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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Product Image of 14-1/2" - 26-1/2" Adjustable Bar Hanger w/ Stud, 50 lbs. Max Load
14-1/2" - 26-1/2" Adjustable Bar Hanger w/ Stud, 50 lbs. Max Load
SKU: 6010ADW-25
Steel City
SKU: 6010ADW-25
Brand: Steel City
$5.75 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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Product Image of Single Gang Flanged Extension Adapter, 1-7/8" Deep, Hub Size 3/4", 2 Outlets, 1 on Top & Bottom, IHEF2-2
Single Gang Flanged Extension Adapter, 1-7/8" Deep, Hub Size 3/4", 2 Outlets, 1 on Top & Bottom, IHEF2-2
SKU: IHEF2-2
Red Dot
SKU: IHEF2-2
Brand: Red Dot
$61.16 each
In Stock
Get 1 by Fri, Jun 26 - Mon, Jun 29
In Stock
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Product Image of Swivel Hanger for 4" Square Device Boxes
Swivel Hanger for 4" Square Device Boxes
SKU: SH-1/2-3/4
Steel City
SKU: SH-1/2-3/4
Brand: Steel City
$51.62 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
Backorder
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Product Image of 24" Adjustable Bar Box Bracket
24" Adjustable Bar Box Bracket
SKU: SSF-SG24A
Steel City
SKU: SSF-SG24A
Brand: Steel City
$11.05 each
BOX UP & SAVE 19%
$449.00 box of 50
$8.98 each
In Stock
Get 148 by Thu, Jun 25
In Stock
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Product Image of Gfci Extension Ring, 7/8 Inch Spacer, Light Almond, GFER-LA
Gfci Extension Ring, 7/8 Inch Spacer, Light Almond, GFER-LA
SKU: GFER-LA
Eaton
SKU: GFER-LA
Brand: Eaton
$1.65 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
Backorder
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Product Image of Gfci Extension Ring, 7/8 Inch Spacer, Ivory, GFER-V
Gfci Extension Ring, 7/8 Inch Spacer, Ivory, GFER-V
SKU: GFER-V
Eaton
SKU: GFER-V
Brand: Eaton
$1.65 each
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
Backorder
Get it by Thu, Jul 23 - Thu, Aug 20
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More About Metallic Device Box Extensions & Accessories
This category contains accessories for metallic device boxes and electrical enclosures. Box extensions, mud rings, box clamps and more can be found here.
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