Shop Metal Extension Box

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$1,395.75
Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
Gordon Electric Supply
30-day returns (most items)
$1,395.75
Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
Gordon Electric Supply
30-day returns
$484.50
Appleton 4Ssbespl 4 Square Outlet Box Ext Ring
Gordon Electric Supply
30-day returns (most items)
$484.50
Appleton 4Ssbespl 4 Square Outlet Box Ext Ring
Gordon Electric Supply
30-day returns
$221.76
Appleton We2 2-Gang Box Ext 1" Deep
Gordon Electric Supply
$221.76
Appleton We2 2-Gang Box Ext 1" Deep
Gordon Electric Supply
$61.19
$67.99
VEVOR NEMA Steel Enclosure, 16 X 16 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
385
Free shipping
10% off
$61.19
$67.99
VEVOR NEMA Steel Enclosure, 16 X 16 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
385
$26.59
Wiremold 2444-2Fw 2-Gang Extension Deep Device Box
Gordon Electric Supply
$26.59
Wiremold 2444-2Fw 2-Gang Extension Deep Device Box
Gordon Electric Supply
$137.50
Appleton 4Se-1/2 4X1-1/2D Square Ext
Gordon Electric Supply
30-day returns (most items)
$137.50
Appleton 4Se-1/2 4X1-1/2D Square Ext
Gordon Electric Supply
30-day returns
$24.99
OHLECTRIC 4" Square Steel Work Box Extension Rings 2-1/8" Deep With Eight 1/2" & 3/4" Knockouts, Fire Rated| Ideal For Wiring Connections, Housing
Amazon.com
7
$24.99
OHLECTRIC 4" Square Steel Work Box Extension Rings 2-1/8" Deep With Eight 1/2" & 3/4" Knockouts, Fire Rated| Ideal For Wiring Connections, Housing
Amazon.com
7
$155.99
$165.99
VEVOR NEMA Steel Enclosure, 24 X 24 X 12'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
Free shipping
$155.99
$165.99
VEVOR NEMA Steel Enclosure, 24 X 24 X 12'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
Free shipping
$49.89
$64.99
VEVOR NEMA Steel Enclosure, 16 X 12 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
Free shipping
23% off
$49.89
$64.99
VEVOR NEMA Steel Enclosure, 16 X 12 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
Free shipping
$86.45
$99.99
VEVOR NEMA Steel Enclosure, 20 X 16 X 10'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
150
Free shipping
13% off
$86.45
$99.99
VEVOR NEMA Steel Enclosure, 20 X 16 X 10'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
Amazon.com
150
$14.99
XGGYA Pack Of 2 Metal Outlet Box 4 Inch 1-Gang,Thickness 1.6Mm,Electrical Outlet Boxes For 4×2-1/8×1-7/8",Raised Ground,8 1/2'' In Side And 2 1/2'
Amazon.com
$14.99
XGGYA Pack Of 2 Metal Outlet Box 4 Inch 1-Gang,Thickness 1.6Mm,Electrical Outlet Boxes For 4×2-1/8×1-7/8",Raised Ground,8 1/2'' In Side And 2 1/2'
Amazon.com
$9.77
$11.15
Legrand Wiremold BW3 Metal Raceway For Extending Power, 700 Series, 1 Gang Deep Outlet Box, 1 3/8" Deep, White (1 Pack)
Amazon.com
64
12% off
$9.77
$11.15
Legrand Wiremold BW3 Metal Raceway For Extending Power, 700 Series, 1 Gang Deep Outlet Box, 1 3/8" Deep, White (1 Pack)
Amazon.com
64
$5.38
$9.00
SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug And Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang
Amazon.com
Easy to use · Superior Quality · plastic
40% off
$5.38
$9.00
SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug And Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang
Amazon.com
Easy to use · Superior Quality · plastic
$27.95
Westgate W2XB75-8 2 Gang Extension Box 1-9/16in Deep, 8 Holes
Lite Store USA
$27.95
Westgate W2XB75-8 2 Gang Extension Box 1-9/16in Deep, 8 Holes
Lite Store USA
$615.75
Appleton 1490 Switch Box Extension
Gordon Electric Supply
30-day returns (most items)
$615.75
Appleton 1490 Switch Box Extension
Gordon Electric Supply
30-day returns
$9.99
Legrand Rectangle Metal 1 Gang Extension Starter Box Ivory
Ace Hardware
$9.99
Legrand Rectangle Metal 1 Gang Extension Starter Box Ivory
Ace Hardware
$4.99
Southwire Old Work Octagon Steel Box Extension
Ace Hardware
$4.99
Southwire Old Work Octagon Steel Box Extension
Ace Hardware
$99.99
$129.99
VEVOR Steel Electrical Enclosure Box, 24'' X 16'' X 12'', IP65 Weatherproof Carbon Steel Hinged Junction Box With Mounting Plate
Amazon.com
Free shipping
23% off
$99.99
$129.99
VEVOR Steel Electrical Enclosure Box, 24'' X 16'' X 12'', IP65 Weatherproof Carbon Steel Hinged Junction Box With Mounting Plate
Amazon.com
Free shipping
$131.05
($26.21/Pc) SBEX Thomas & Betts Switch Box Extension - 3.5 Cu.In. - Material Steel - Pre-Galvanized Finish
Onlinecomponents.com
30-day returns (most items)
$131.05
($26.21/Pc) SBEX Thomas & Betts Switch Box Extension - 3.5 Cu.In. - Material Steel - Pre-Galvanized Finish
Onlinecomponents.com
30-day returns
$7.29
BWF Outlet Box Extension 4-9/16 in L 1 in W 2-Gang Metal Gray Powder-Coated EXR-2V
DkHardware.com
$7.29
BWF Outlet Box Extension 4-9/16 in L 1 in W 2-Gang Metal Gray Powder-Coated EXR-2V
DkHardware.com
$7.68
BWF Box Extension Adapter 5-1/4 in L 3-1/2 in W 1 -Gang Metal Gray 10XF-1
DkHardware.com
$7.68
BWF Box Extension Adapter 5-1/4 in L 3-1/2 in W 1 -Gang Metal Gray 10XF-1
DkHardware.com
$9.99
Legrand Rectangle Steel 1 Gang Extension Starter Box Ivory
Ace Hardware
$9.99
Legrand Rectangle Steel 1 Gang Extension Starter Box Ivory
Ace Hardware
$7.92
BWF Outlet Box Extension 4-9/16 in L 4-5/8 in W Die-Cast Metal White EX-5WV
DkHardware.com
$7.92
BWF Outlet Box Extension 4-9/16 in L 4-5/8 in W Die-Cast Metal White EX-5WV
DkHardware.com
$58.95
Greenheck 380864 Galvanized 4 X 4in Handy Box Extension
Lite Store USA
$58.95
Greenheck 380864 Galvanized 4 X 4in Handy Box Extension
Lite Store USA
$8.50
BWF Box Extension Adapter 5-1/4 in L 3-1/2 in W 1 -Gang Metal Gray EXF75-2V
DkHardware.com
$8.50
BWF Box Extension Adapter 5-1/4 in L 3-1/2 in W 1 -Gang Metal Gray EXF75-2V
DkHardware.com
$4.99
Southwire Old Work Square Galvanized Steel Box Extension Ring Silver
Ace Hardware
$4.99
Southwire Old Work Square Galvanized Steel Box Extension Ring Silver
Ace Hardware
$96.89
Garvin Southwire 1-5/8 Inch Deep Seven Gang Multi-Gang Box Extension Ring (Gbex-1587)
Lite Store USA
$96.89
Garvin Southwire 1-5/8 Inch Deep Seven Gang Multi-Gang Box Extension Ring (Gbex-1587)
Lite Store USA
$113.89
Garvin Southwire 2-1/2 Inch Deep Seven Gang Multi-Gang Box Extension Ring (Gbex-2127)
Lite Store USA
$113.89
Garvin Southwire 2-1/2 Inch Deep Seven Gang Multi-Gang Box Extension Ring (Gbex-2127)
Lite Store USA
$98.99
304 Stainless Steel Electrical Box 16'' X 12'' X 8'' Outdoor Electrical Enclosure Box 16" H X 12" W X 8" D With Mounting Plate Weatherproof Anti-Rust
Amazon.com
Free shipping
$98.99
304 Stainless Steel Electrical Box 16'' X 12'' X 8'' Outdoor Electrical Enclosure Box 16" H X 12" W X 8" D With Mounting Plate Weatherproof Anti-Rust
Amazon.com
Free shipping
$83.99
VEVOR Nema Stainless Steel Enclosure 16 X 12 X 8'' Nema 4X Steel Electrical Box IP66 Waterproof & Dustproof Outdoor/Indoor Electrical Junction Box
VEVOR
$83.99
VEVOR Nema Stainless Steel Enclosure 16 X 12 X 8'' Nema 4X Steel Electrical Box IP66 Waterproof & Dustproof Outdoor/Indoor Electrical Junction Box
VEVOR
$6.99
Southwire New And Old Work Rectangle Galvanized Steel Box Extension Ring
Ace Hardware
$6.99
Southwire New And Old Work Rectangle Galvanized Steel Box Extension Ring
Ace Hardware
$7.29
BWF Outlet Box Extension 4-9/16 in L 4-5/8 in W Metal Gray EX-5V
DkHardware.com
$7.29
BWF Outlet Box Extension 4-9/16 in L 4-5/8 in W Metal Gray EX-5V
DkHardware.com
$46.99
VEVOR Nema Steel Enclosure 12 X 12 X 6'' Nema 4X Steel Electrical Box IP66 Waterproof & Dustproof Outdoor/Indoor Electrical Junction Box With
VEVOR
$46.99
VEVOR Nema Steel Enclosure 12 X 12 X 6'' Nema 4X Steel Electrical Box IP66 Waterproof & Dustproof Outdoor/Indoor Electrical Junction Box With
VEVOR
$14.57
$16.36
Legrand Wiremold BW4F Metal Raceway For Extending Power, 700 Series, 5 1/2" Diameter Circular Fan And Fixture Box, 1" Deep, White (1 Pack)
Amazon.com
10% off
$14.57
$16.36
Legrand Wiremold BW4F Metal Raceway For Extending Power, 700 Series, 5 1/2" Diameter Circular Fan And Fixture Box, 1" Deep, White (1 Pack)
Amazon.com
$9.50
Westgate Wrb50-5-Brz 4in Deep Round Extension Box 5 Holes, Bronze
Lite Store USA
$9.50
Westgate Wrb50-5-Brz 4in Deep Round Extension Box 5 Holes, Bronze
Lite Store USA
$5.01
Orbit 3RB 3RB-50 Outlet Box With Extension Ring 1 -Gang 5 -Knockout 1/2 in Knockout Steel Gray Galvanized 110
DkHardware.com
$5.01
Orbit 3RB 3RB-50 Outlet Box With Extension Ring 1 -Gang 5 -Knockout 1/2 in Knockout Steel Gray Galvanized 110
DkHardware.com
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    Shop Metal Extension Box

    Sponsored
    About our ads
    $1,395.75
    Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
    Gordon Electric Supply
    30-day returns (most items)
    $1,395.75
    Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
    Gordon Electric Supply
    30-day returns
    $484.50
    Appleton 4Ssbespl 4 Square Outlet Box Ext Ring
    Gordon Electric Supply
    30-day returns (most items)
    $484.50
    Appleton 4Ssbespl 4 Square Outlet Box Ext Ring
    Gordon Electric Supply
    30-day returns
    $61.19
    $67.99
    VEVOR NEMA Steel Enclosure, 16 X 16 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    385
    Free shipping
    10% off
    $61.19
    $67.99
    VEVOR NEMA Steel Enclosure, 16 X 16 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    385
    $221.76
    Appleton We2 2-Gang Box Ext 1" Deep
    Gordon Electric Supply
    $221.76
    Appleton We2 2-Gang Box Ext 1" Deep
    Gordon Electric Supply
    $26.59
    Wiremold 2444-2Fw 2-Gang Extension Deep Device Box
    Gordon Electric Supply
    $26.59
    Wiremold 2444-2Fw 2-Gang Extension Deep Device Box
    Gordon Electric Supply
    $137.50
    Appleton 4Se-1/2 4X1-1/2D Square Ext
    Gordon Electric Supply
    30-day returns (most items)
    $137.50
    Appleton 4Se-1/2 4X1-1/2D Square Ext
    Gordon Electric Supply
    30-day returns
    $24.99
    OHLECTRIC 4" Square Steel Work Box Extension Rings 2-1/8" Deep With Eight 1/2" & 3/4" Knockouts, Fire Rated| Ideal For Wiring Connections, Housing
    Amazon.com
    7
    $24.99
    OHLECTRIC 4" Square Steel Work Box Extension Rings 2-1/8" Deep With Eight 1/2" & 3/4" Knockouts, Fire Rated| Ideal For Wiring Connections, Housing
    Amazon.com
    7
    $155.99
    $165.99
    VEVOR NEMA Steel Enclosure, 24 X 24 X 12'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    Free shipping
    $155.99
    $165.99
    VEVOR NEMA Steel Enclosure, 24 X 24 X 12'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    Free shipping
    $49.89
    $64.99
    VEVOR NEMA Steel Enclosure, 16 X 12 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    Free shipping
    23% off
    $49.89
    $64.99
    VEVOR NEMA Steel Enclosure, 16 X 12 X 8'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    Free shipping
    $86.45
    $99.99
    VEVOR NEMA Steel Enclosure, 20 X 16 X 10'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    150
    Free shipping
    13% off
    $86.45
    $99.99
    VEVOR NEMA Steel Enclosure, 20 X 16 X 10'' NEMA 4X Steel Electrical Box, IP66 Waterproof & Dustproof, Outdoor/Indoor Electrical Junction Box, With
    Amazon.com
    150
    $14.99
    XGGYA Pack Of 2 Metal Outlet Box 4 Inch 1-Gang,Thickness 1.6Mm,Electrical Outlet Boxes For 4×2-1/8×1-7/8",Raised Ground,8 1/2'' In Side And 2 1/2'
    Amazon.com
    $14.99
    XGGYA Pack Of 2 Metal Outlet Box 4 Inch 1-Gang,Thickness 1.6Mm,Electrical Outlet Boxes For 4×2-1/8×1-7/8",Raised Ground,8 1/2'' In Side And 2 1/2'
    Amazon.com
    $9.77
    $11.15
    Legrand Wiremold BW3 Metal Raceway For Extending Power, 700 Series, 1 Gang Deep Outlet Box, 1 3/8" Deep, White (1 Pack)
    Amazon.com
    64
    12% off
    $9.77
    $11.15
    Legrand Wiremold BW3 Metal Raceway For Extending Power, 700 Series, 1 Gang Deep Outlet Box, 1 3/8" Deep, White (1 Pack)
    Amazon.com
    64
    $5.38
    $9.00
    SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug And Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang
    Amazon.com
    Easy to use · Superior Quality · plastic
    40% off
    $5.38
    $9.00
    SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug And Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang
    Amazon.com
    Easy to use · Superior Quality · plastic
    $27.95
    Westgate W2XB75-8 2 Gang Extension Box 1-9/16in Deep, 8 Holes
    Lite Store USA
    $27.95
    Westgate W2XB75-8 2 Gang Extension Box 1-9/16in Deep, 8 Holes
    Lite Store USA
    $615.75
    Appleton 1490 Switch Box Extension
    Gordon Electric Supply
    30-day returns (most items)
    $615.75
    Appleton 1490 Switch Box Extension
    Gordon Electric Supply
    30-day returns
    $9.99
    Legrand Rectangle Metal 1 Gang Extension Starter Box Ivory
    Ace Hardware
    $9.99
    Legrand Rectangle Metal 1 Gang Extension Starter Box Ivory
    Ace Hardware
    $4.99
    Southwire Old Work Octagon Steel Box Extension
    Ace Hardware
    $4.99
    Southwire Old Work Octagon Steel Box Extension
    Ace Hardware
    $99.99
    $129.99
    VEVOR Steel Electrical Enclosure Box, 24'' X 16'' X 12'', IP65 Weatherproof Carbon Steel Hinged Junction Box With Mounting Plate
    Amazon.com
    Free shipping
    23% off
    $99.99
    $129.99
    VEVOR Steel Electrical Enclosure Box, 24'' X 16'' X 12'', IP65 Weatherproof Carbon Steel Hinged Junction Box With Mounting Plate
    Amazon.com
    Free shipping