Sign in / Register

Region

English español English français

Products

Products

Explore our complete product offering.

Wire & Cable Tools & Equipment Power Management Lighting Electrical Components SCR^® Technologies New Products
View Our Catalog

600 Volt Secondary Distribution

Armored Power Cable

Bare Aluminum Overhead Transmission & Distribution

Building Wire

Copper Bare & Covered

Covered Aerial MV (CAMV™) Systems

Canadian Products

Flexible Conduit

Flexible Cord

High Voltage Underground (69kV and Up)

HVAC

Industrial Flexible

Leadwire

Low Voltage Cable

Medium Voltage Power Cable

Medium Voltage Primary Underground Distribution

Metal Clad Cable

Mining Cable

Overhead Covered Conductor

Power & Control

Pump & Irrigation

SIMpull^® Cable In Conduit

Substation

Telecom Power

Transit Cable

Bending

Cable Preparation & Termination

Cable Pulling & Fishing

Drivers

General Purpose Tools

Hole Making

Material Handling & Storage

Pliers

Saws & Cutting

Test & Measurement

VDV Tools & Testers

Entertainment Lifts

Jacks & Stands

Lifts

Chain Block & Lever Hoists

Purge Dams

Welding Tools & Pipe Fitting Products

Cord Protectors

Data Center Products

Electrical Safety

Extension Cords

Recreational Power

Temporary Power Distribution

Area Lights

Bulbs & Accessories

Clamp Lights

Corded Work Lights

Dock Lights

Flood Work Lights

Halogen Work Lights

Handheld Lights

Headlamps

String Lights

Temporary Overhead Lighting

Trouble Lights

Permanent Install Lighting

Rechargeable Work Lights

Bolted Framing, Strut Fittings & Clamps

Cable Ties

Commercial, Industrial, Residential Raceway Fittings

Floor Boxes & Covers

Grounding, Bonding, Splicing

Non-Metallic Boxes & Covers

Panel & Breaker Accessories

Raceway Support & Hanging, Box Positioning Products

Steel Boxes, Covers, & Accessories

Wire & Cable

Tools & Equipment

Power Management

Lighting

Electrical Components

SCR^® Technologies

New Products
Services

Services

See Southwire's full service offerings catalog.

View All Services

Southwire SPEED Services

CableTechSupport Services

Southwire Solutions University

Contractor Solutions Professionals

High Voltage Underground Transmission

Storm Activation Team

Cable Rejuvenation

Digital Grid Resiliency Assessments
Industries

Industries

See Southwire's important industry verticals.
View Our Industries

Data Centers

Factory Power & Automation

Utility

Renewables

Mass Transit

Oil, Gas & Petrochem

Residential

Commercial

Healthcare

Automotive & Electric Vehicles

Telecom Power
Ordering

Ordering

Strong brand names. Diverse product lines.
View All Ordering

Southwire Customer Hub

Pricing

Reels & Returns

Freight Policy

Terms and Conditions
Resources

Resources

From vision to completion, we're here to help you along the way.
View All Resources

Calculators

Mobile Apps

Manuals & Catalogs

Videos

Industry Links

Events

Repair Centers

Product Cross References

Find a Sales Representative

Software

Featured

Warranties

Electrical Association Partnerships
About

About Us

Learn more about Southwire’s history, impact and reach.
Read About Southwire

Careers

Family Owned

Newsroom

Sustainability

History

Donations

Diversity, Equity and Inclusion
Join Our Team

Search Products

Products
Electrical Components
Steel Boxes, Covers, & Accessories
Masonary Boxes and Extensions

Steel Boxes, Covers, & Accessories

Masonary Boxes and Extensions Products (39)

View Sort

Filter By

Masonary Boxes and Extensions (39)

+ Show More - Show Less

F - Flat Vertical (4)

Gangable (6)

Mortar Bracket (6)

Old Work Clips (3)

+ Show More - Show Less

(3) Toggle (1)

+ Show More - Show Less

UL (4)

+ Show More - Show Less

Silver (39)

+ Show More - Show Less

105.0 (1721.0) (1)

108.0 (1769.8) (1)

126.0 (2065.2) (1)

13.8 (226.2) (1)

130.0 (2130.4) (1)

14.0 (229.5) (3)

16.0 (262.1) (1)

21.0 (344.2) (3)

22.5 (368.7) (1)

28.0 (459.0) (2)

30.0 (491.7) (1)

42.0 (688.4) (2)

42.0 (688.5) (2)

44.0 (721.1) (1)

45.0 (737.5) (2)

56.0 (918.0) (1)

59.0 (966.9) (2)

63.0 (1032.6) (1)

65.0 (1065.2) (2)

70.0 (1147.5) (2)

74.0 (1212.7) (2)

84.0 (1376.8) (1)

84.0 (1377.0) (1)

87.0 (1425.7) (2)

92.0 (1507.7) (1)

+ Show More - Show Less

2-1/2" (20)

3-1/2" (18)

+ Show More - Show Less

Galvanized Steel (39)

+ Show More - Show Less

Number of Gangs

1 (9)

2 (6)

3 (8)

4 (6)

5 (6)

6 (4)

+ Show More - Show Less

Raised Dimension

1/4" (1)

+ Show More - Show Less

(10) 1/2" - 3/4" (4)

(12) 1/2" - 3/4" (3)

(14) 1/2" - 3/4" (3)

(16) 1/2" - 3/4" (3)

(18) 1/2" - 3/4" (1)

(20) 1/2" - 3/4" (2)

(24) 1/2" - 3/4" (2)

(28) 1/2" - 3/4" (1)

(4) 1/2" - 3/4" (7)

(6) 1/2" - 3/4" (4)

(7) 1/2" - 3/4" (1)

(8) 1/2" - 3/4" (7)

+ Show More - Show Less

3" X 2" Cut In Switch Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-125-OW

Model #: TB-125-OW

3" X 2" Cut In Switch Box, 3-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-135-OW

Model #: TB-135-OW

Five Gang Bracketed Masonry Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-525-F

Model #: TB-525-F

Five Gang Masonry Box Extension, 2-1/2" Deep - W/ Conduit KO's

Model #: TBX-525

Model #: TBX-525

Five Gang Masonry Box, 2-1/2" Deep - Gangable, W/ Conduit KO's

Model #: TB-525-G

Model #: TB-525-G

Five Gang Masonry Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-525

Model #: TB-525

Five Gang Masonry Box, 3-1/2" Deep - Gangable, W/ Conduit KO's

Model #: TB-535-G

Model #: TB-535-G

Five Gang Masonry Box, 3-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-535

Model #: TB-535

Four Gang Bracketed Masonry Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-425-F

Model #: TB-425-F

Four Gang Bracketed Masonry Box, 3-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-435-F

Model #: TB-435-F

Four Gang Masonry Box Extension, 2-1/2" Deep - W/ Conduit KO's

Model #: TBX-425

Model #: TBX-425

Four Gang Masonry Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-425

Model #: TB-425

Four Gang Masonry Box, 3-1/2" Deep - Gangable, W/ Conduit KO's

Model #: TB-435-G

Model #: TB-435-G

Four Gang Masonry Box, 3-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-435

Model #: TB-435

One Gang Bracketed Masonry Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: CB-1250

Model #: CB-1250

One Gang Bracketed Masonry Box, 3-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: CB-1350

Model #: CB-1350

One Gang Masonry Box Extension, 2-1/2" Deep - W/ Conduit KO's

Model #: TBX-125

Model #: TBX-125

One Gang Masonry Box, 2-1/2" Deep - Gangable, W/ Conduit KO's

Model #: TB-125-G

Model #: TB-125-G

One Gang Masonry Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-125

Model #: TB-125

One Gang Masonry Box, 3-1/2" Deep - Gangable, W/ Conduit KO's

Model #: TB-135-G

Model #: TB-135-G

One Gang Masonry Box, 3-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-135

Model #: TB-135

Six Gang Masonry Box Extension, 3-1/2" Deep - W/ Conduit KO's

Model #: TBX-635

Model #: TBX-635

Six Gang Masonry Box, 2-1/2" Deep - Gangable, W/ Conduit KO's

Model #: TB-625-G

Model #: TB-625-G

Six Gang Masonry Box, 2-1/2" Deep - Non-Gangable, W/ Conduit KO's

Model #: TB-625

Model #: TB-625

1-24 of 39

1
2

View

Products Where to Buy Ordering Resources About

Sustainability Join Our Team Contact Us Privacy Policy Website Terms of Use

Southwire Patents Recalls California Supply Chain Act Submit Product Idea

Available on the App Store Get it on Google Play

© 2023 Southwire Company, LLC. All Rights Reserved.