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    27 Products

    Steel Outlet Boxes with Knockouts

    Knockouts allow you to modify these boxes to fit your application.
    Square Outlet Boxes
    Image of Product. Front orientation. Outlet Boxes. Steel Outlet Boxes with Knockouts, Square Outlet Boxes.
    Image of Product. Front orientation. Outlet Boxes. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, With Top and Bottom Mounting Brackets.

    With Top and

    Bottom Mounting

    Brackets

    For Max. No.
    of Devices
    Outlet Box
    Designation
    No. of
    Knockouts
    Knockout Trade
    Size
    Ht.
    Wd.
    Dp.
    Cap., cu.
    in.
    Material
    Each
    Outlet Boxes
    22 Gang
    		121/2, 3/4, 1
    		4"4"2 1/8"30.3Zinc-Plated Steel0000000000000
    22 Gang
    		161/2
    		4"4"1 1/2"21Zinc-Plated Steel000000000000
    22 Gang
    		161/2, 3/4
    		4"4"1 1/2"21Zinc-Plated Steel000000000000
    22 Gang
    		161/2, 3/4
    		4"4"2 1/8"30.3Zinc-Plated Steel000000000000
     
    With Top and Bottom Mounting Brackets
    22 Gang
    		141/2, 3/4
    		4"4"1 1/2"21Zinc-Plated Steel000000000000
     
    Accessories for Outlet Boxes
    Outlet Box Extenders
    Image of Product. Front orientation. Outlet Box Extenders. Steel Outlet Boxes with Knockouts, Square Outlet Boxes.
    Outlet Box
    Designation
    No. of
    Knockouts
    Knockout
    Trade Size
    Ht.
    Wd.
    Dp.
    Cap., cu.
    in.
    Material
    Certification
    Each
    2 Gang
    		121/2, 3/4
    		4"4"1 1/2"22.5Zinc-Plated SteelUL Listed
    		0000000000000
    Outlet Box Covers
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Flat Blank Covers with Knockouts.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Flat Blank Covers.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Blank Covers.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for NEMA Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for GFCI Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for Toggle Switches.

    Flat Blank

    Covers with

    Knockouts

    Flat Blank

    Covers

    Raised Blank

    Covers

    Raised Covers

    for NEMA

    Outlets

    Raised Covers

    for GFCI

    Outlets

    Raised Covers

    for Toggle

    Switches

    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for Circular Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for NEMA and GFCI Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for NEMA Outlets and Toggle Switches.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for NEMA and Circular Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Steel Outlet Boxes with Knockouts, Square Outlet Boxes, Raised Covers for NEMA Outlets, GFCI Outlets, and Toggle Switches.

    Raised Covers

    for Circular

    Outlets

    Raised Covers

    for NEMA and

    GFCI Outlets

    Raised Covers

    for NEMA

    Outlets and

    Toggle

    Switches

    Raised Covers

    for NEMA and

    Circular

    Outlets

    Raised Covers

    for NEMA

    Outlets, GFCI

    Outlets, and

    Toggle Switches

    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No. of Outlets
    For No. of Toggle
    Switches
    Circular
    Outlet Dia.
    Knockout Trade Size (No.
    of Knockouts)
    Ht.
    Wd.
    Dp.
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Flat Blank Covers with Knockouts
    02 Gang
    		———1/2 (1)4"4"—Zinc-Plated SteelNoUL Listed
    		0000000000000
     
    Flat Blank Covers
    02 Gang
    		————4"4"—Zinc-Plated SteelNoUL Listed
    		000000000000
     
    Raised Blank Covers
    02 Gang
    		————4 1/8"4 1/8"9/16"Zinc-Plated SteelNoUL Listed
    		0000000000000
     
    Raised Covers for NEMA Outlets
    12 Gang
    		2 Outlets———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    22 Gang
    		4 Outlets———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for GFCI Outlets
    12 Gang
    		1 Outlet———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    22 Gang
    		2 Outlets———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		0000000000000
     
    Raised Covers for Toggle Switches
    12 Gang
    		—1——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    22 Gang
    		—2——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for Circular Outlets
    12 Gang
    		1 Outlet—1.4"—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet—1.6"—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet—1.7"—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet—2.1"—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet—2.6"—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for NEMA and GFCI Outlets
    22 Gang
    		2 NEMA Outlets, 1 GFCI Outlet———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for NEMA Outlets and Toggle Switches
    22 Gang
    		2 NEMA Outlets1——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for NEMA and Circular Outlets
    22 Gang
    		2 NEMA Outlets, 1 Circular Outlet—1.6"—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		00000000000000
     
    Raised Covers for NEMA Outlets, GFCI Outlets, and Toggle Switches
    12 Gang
    		2 NEMA Outlets, 1 GFCI Outlet1——4 1/16"4 1/16"1/2"Zinc-Plated SteelNoUL Listed
    		000000000000
    12 Gang
    		2 NEMA Outlets, 1 GFCI Outlet1——4 1/16"4 1/16"5/8"Zinc-Plated SteelNoUL Listed
    		000000000000
    22 Gang
    		4 NEMA Outlets, 2 GFCI Outlets2——4 1/16"4 1/16"1/2"Zinc-Plated SteelNoUL Listed
    		000000000000
    22 Gang
    		4 NEMA Outlets, 2 GFCI Outlets2——4 1/16"4 1/16"5/8"Zinc-Plated SteelNoUL Listed
    		000000000000
     

    Covers for Steel Outlet Boxes

    For NEMA Outlets
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For NEMA Outlets, Square.

    Square

    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No.
    of Outlets
    Ht.
    Wd.
    Dp.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    12 Gang
    		24 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		0000000000000
    22 Gang
    		44 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		000000000000
     
    For GFCI Outlets
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For GFCI Outlets.
    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No.
    of Outlets
    Ht.
    Wd.
    Dp.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    12 Gang
    		14 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		0000000000000
    22 Gang
    		24 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		0000000000000
     
    For Toggle Switches
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For Toggle Switches.
    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No. of Toggle
    Switches
    Ht.
    Wd.
    Dp.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    12 Gang
    		14 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		0000000000000
    22 Gang
    		24 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		000000000000
     
    For Circular Outlets
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For Circular Outlets.
    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No.
    of Outlets
    Circular
    Outlet Dia.
    Ht.
    Wd.
    Dp.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    12 Gang
    		11.4"4 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		0000000000000
    12 Gang
    		11.6"4 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		11.7"4 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		12.1"4 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		12.6"4 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		000000000000
     
    For NEMA Outlets and GFCI Outlets
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For NEMA Outlets and GFCI Outlets.
    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No. of
    NEMA Outlets
    For No. of
    GFCI Outlets
    Ht.
    Wd.
    Dp.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    22 Gang
    		214 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		0000000000000
     
    For NEMA Outlets and Toggle Switches
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For NEMA Outlets and Toggle Switches.
    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No. of
    NEMA Outlets
    For No. of Toggle
    Switches
    Ht.
    Wd.
    Dp.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    22 Gang
    		214 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		0000000000000
     
    For NEMA Outlets and Circular Outlets
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For NEMA Outlets and Circular Outlets.
    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No. of
    NEMA Outlets
    For No. of Circular
    Outlets
    Circular
    Outlet Dia.
    Ht.
    Wd.
    Dp.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    22 Gang
    		211.6"4 1/8"4 1/8"9/16"RaisedZinc-Plated SteelYesUL Listed
    		000000000000000
     
    For NEMA Outlets, GFCI Outlet, and Toggle Switches
    Image of Product. Front orientation. Outlet Box Covers. Covers for Steel Outlet Boxes, For NEMA Outlets, GFCI Outlet, and Toggle Switches, Square.

    Square

    1/2" Deep
    5/8" Deep
    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No. of
    NEMA Outlets
    For No. of
    GFCI Outlets
    For No. of Toggle
    Switches
    Ht.
    Wd.
    Cover
    Style
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Each
    Square
    12 Gang
    		2114 1/16"4 1/16"RaisedZinc-Plated SteelNoUL Listed
    		00000000000000000000000000
    22 Gang
    		4224 1/16"4 1/16"RaisedZinc-Plated SteelNoUL Listed
    		000000000000000000000000
     

    Blank Covers for Steel Outlet Boxes

    Close off unused outlets.
    Flat Covers
    Image of Product. Front orientation. Outlet Box Covers. Blank Covers for Steel Outlet Boxes, Flat Covers, Square.

    Square

    Outlet Box
    Designation
    Ht.
    Wd.
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    2 Gang
    		4"4"Zinc-Plated SteelNoUL Listed
    		0000000000000
     
    Flat Covers with Knockouts
    Image of Product. Front orientation. Outlet Box Covers. Blank Covers for Steel Outlet Boxes, Flat Covers with Knockouts, Square.

    Square

    Outlet Box
    Designation
    No. of
    Knockouts
    Knockout
    Trade Size
    Ht.
    Wd.
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    2 Gang
    		11/2
    		4"4"Zinc-Plated SteelNoUL Listed
    		0000000000000
     
    Raised Covers
    Image of Product. Front orientation. Outlet Box Covers. Blank Covers for Steel Outlet Boxes, Raised Covers.
    Outlet Box
    Designation
    Ht.
    Wd.
    Dp.
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Square
    2 Gang
    		4 1/8"4 1/8"9/16"Zinc-Plated SteelNoUL Listed
    		00000000000000
     

    Extenders with Knockouts for Steel Outlet Boxes

    Add depth to your outlet box.
    Square
    Image of Product. Front orientation. Outlet Box Extenders. Extenders with Knockouts for Steel Outlet Boxes, Square.
    Outlet Box
    Designation
    No. of
    Knockouts
    Knockout
    Trade Size
    Ht.
    Wd.
    Dp.
    Cap., cu.
    in.
    Material
    Certification
    Each
    2 Gang
    		121/2, 3/4
    		4"4"1 1/2"22.5Zinc-Plated SteelUL Listed
    		0000000000000
    Outlet Box Covers
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Flat Blank Covers with Knockouts.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Flat Blank Covers.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Blank Covers.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for NEMA Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for Toggle Switches.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for Circular Outlets.

    Flat Blank

    Covers with

    Knockouts

    Flat Blank

    Covers

    Raised Blank

    Covers

    Raised Covers

    for NEMA

    Outlets

    Raised Covers

    for Toggle

    Switches

    Raised Covers

    for Circular

    Outlets

    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for GFCI Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for NEMA and GFCI Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for NEMA Outlets and Toggle Switches.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for NEMA and Circular Outlets.
    Image of Product. Front orientation. Outlet Box Covers. Extenders with Knockouts for Steel Outlet Boxes, Square, Raised Covers for NEMA Outlets, GFCI Outlets, and Toggle Switches.

    Raised Covers

    for GFCI

    Outlets

    Raised Covers

    for NEMA and

    GFCI Outlets

    Raised Covers

    for NEMA

    Outlets and

    Toggle

    Switches

    Raised Covers

    for NEMA and

    Circular

    Outlets

    Raised Covers

    for NEMA

    Outlets, GFCI

    Outlets, and

    Toggle Switches

    For Max. No.
    of Devices
    Outlet Box
    Designation
    For No. of Outlets
    Circular
    Outlet Dia.
    For No. of Toggle
    Switches
    Knockout Trade Size (No.
    of Knockouts)
    Ht.
    Wd.
    Dp.
    Material
    Mounting Fasteners
    Included
    Certification
    Each
    Flat Blank Covers with Knockouts
    02 Gang
    		———1/2 (1)4"4"—Zinc-Plated SteelNoUL Listed
    		0000000000000
     
    Flat Blank Covers
    02 Gang
    		————4"4"—Zinc-Plated SteelNoUL Listed
    		000000000000
     
    Raised Blank Covers
    02 Gang
    		————4 1/8"4 1/8"9/16"Zinc-Plated SteelNoUL Listed
    		0000000000000
     
    Raised Covers for NEMA Outlets
    12 Gang
    		2 Outlets———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    22 Gang
    		4 Outlets———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for Toggle Switches
    12 Gang
    		——1—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    22 Gang
    		——2—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for Circular Outlets
    12 Gang
    		1 Outlet1.4"——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet1.6"——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet1.7"——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet2.1"——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    12 Gang
    		1 Outlet2.6"——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for GFCI Outlets
    12 Gang
    		1 Outlet———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
    22 Gang
    		2 Outlets———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		0000000000000
     
    Raised Covers for NEMA and GFCI Outlets
    22 Gang
    		2 NEMA Outlets, 1 GCFI Outlet———4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for NEMA Outlets and Toggle Switches
    22 Gang
    		2 NEMA Outlets—1—4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		000000000000
     
    Raised Covers for NEMA and Circular Outlets
    22 Gang
    		2 NEMA Outlets, 1 Circular Outlet1.6"——4 1/8"4 1/8"9/16"Zinc-Plated SteelYesUL Listed
    		00000000000000
     
    Raised Covers for NEMA Outlets, GFCI Outlets, and Toggle Switches
    12 Gang
    		2 NEMA Outlets, 1 GCFI Outlet—1—4 1/16"4 1/16"1/2"Zinc-Plated SteelNoUL Listed
    		000000000000
    12 Gang
    		2 NEMA Outlets, 1 GCFI Outlet—1—4 1/16"4 1/16"5/8"Zinc-Plated SteelNoUL Listed
    		000000000000
    22 Gang
    		4 NEMA Outlets, 2 GCFI Outlets—2—4 1/16"4 1/16"1/2"Zinc-Plated SteelNoUL Listed
    		000000000000
    22 Gang
    		4 NEMA Outlets, 2 GCFI Outlets—2—4 1/16"4 1/16"5/8"Zinc-Plated SteelNoUL Listed
    		000000000000
     
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