Solid and Gangable Masonry Boxes
Works With All Types of Masonry for Power and Low Voltage Installations
GI-TB-125
What's special about these outlet boxes?
- These electrical boxes are used to mount switches, plugs, and receptacles in concrete, glass, brick, and other types of masonry
- Choose between a solid build for fast installation, or gangable to prepare for expansion
- Each box contains several 1/2" to 3/4" knockouts to guarantee conduit access from any angle
- Click for More Features
These Masonry Boxes are designed to provide the strength and flexibility you need to install power and data options into masonry. These durable 2.5" to 3.5" deep electrical boxes are available up to 10 gangs, in both solid and gangable styles. Solid boxes speed up installation times for jobs that won't require any future changes, and gangable boxes are ideal for applications that may change unexpectedly in the field.
3-1/2" Deep Boxes | 2-1/2" Deep Extension Rings | 3-1/2" Deep Extension Rings | Accessories
| IMAGE | PART # | DRAWING | GANG(S) | BUILD | PRICE |
| 2-1/2" Deep Boxes | |||||
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GI-TB-125 | Solid Drawing Dimensions - PDF | 1 | Solid | |
 |
GI-TB-225 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
2 | Solid | |
 |
GI-TB-425 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
4 | Solid | |
 |
GI-TB-525 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
5 | Solid | |
 |
GI-TB-625 | Gangable Drawing Dimensions - PDF | 6 | Solid | |
 |
GI-TB-825-G | Drawing Dimensions - PDF | 8 | Gangable | |
 |
GI-TB-925-G | Drawing Dimensions - PDF | 9 | Gangable | |
 |
GI-TB-1025-G | Drawing Dimensions - PDF | 10 | Gangable | |
| IMAGE | PART # | DRAWING | GANG(S) | BUILD | PRICE |
| 3-1/2" Deep Boxes | |||||
 |
GI-TB-135 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
1 | Solid | |
 |
GI-TB-235 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
2 | Solid or Gangable | |
 |
GI-TB-435 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
4 | Solid or Gangable | |
 |
GI-TB-535 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
5 | Solid | |
 |
GI-TB-635 | Solid Drawing Dimensions - PDF
Gangable Drawing Dimensions - PDF |
6 | Solid or Gangable | |
 |
GI-TB-735-G | Drawing Dimensions - PDF | 7 | Gangable | |
 |
GI-TB-835-G | Drawing Dimensions - PDF | 8 | Gangable | |
 |
GI-TB-935-G | Drawing Dimensions - PDF | 9 | Gangable | |
 |
GI-TB-1035-G | Drawing Dimensions - PDF | 10 | Gangable | |
| 2-1/2" Deep Extension Rings | |||||
| IMAGE | PART # | DRAWING | GANG(S) | PRICE | |
 |
GI-TBX-125 | Drawing Dimensions - PDF | 1 | ||
 |
GI-TBX-225 | Drawing Dimensions - PDF | 2 | ||
 |
GI-TBX-325 | Drawing Dimensions - PDF | 3 | ||
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GI-TBX-425 | Drawing Dimensions - PDF | 4 | ||
 |
GI-TBX-525 | — | 5 | ||
 |
GI-TBX-625 | — | 6 | ||
| 3-1/2" Deep Extension Rings | |||||
 |
GI-TBX-135 | — | 1 | ||
 |
GI-TBX-235 | — | 2 | ||
 |
GI-TBX-335 | — | 3 | ||
 |
GI-TBX-435 | — | 4 | ||
| Accessories | |||||
| IMAGE | PART # | DESCRIPTION | DRAWING | PRICE | |
 |
GI-TBD-250 | Device Partition for 2-1/2" Deep Masonry Box | Drawing Dimensions - PDF | ||
 |
GI-TBD-350 | Device Partition for 3-1/2" Deep Masonry Box | Drawing Dimensions - PDF | ||
| — | GI-TB-335-BLNK | Solid, 3-1/2" Deep, Blank Three Gang Masonry Box | — | ||
 |
GI-MBC3D | 3 Gang Masonry Box Cover for Duplex Receptacles | Drawing Dimensions - PDF | ||
- 2 build options to suit your application:
- Solid: One-piece construction, standard boxes for jobs that will not change, available up to 6 gangs
- Gangable: Each gang is made with removable sides for the addition of more gangs, allowing you to daisy-chain an infinite number of boxes for custom installations
- Each box is available in 2-1/2" and 3-1/2" depths to accommodate various wiring densities
- Heavy duty welded steel construction ensures these boxes can withstand the pressure of being installed in masonry
- Each multiple gang box contains a slot for a device partition, separating low-voltage and power device signals for decreased electrical interference
| PROPERTY | VALUE |
| Material | G60 Galvanized Steel |
|---|---|
| Material Gauge | 0.0625" (1.587 mm) |
| Gangs | Solid: 1 to 10 Gangable: 1 to 7 |
| Industry Standards | UL E22445 |
| Gangs | Knockouts | |||
| Bottom | Top | Rear | Sides (L+R) | |
| 1 | 1 | 1 | 2 | 4 |
| 2 | 2 | 2 | 4 | 4 |
| 3 | 3 | 3 | 6 | 4 |
| 4 | 4 | 4 | 8 | 4 |
| 5 | 5 | 5 | 10 | 4 |
| 6 | 6 | 6 | 12 | 4 |
| 7 | 7 | 7 | 14 | 4 |
| 8 | 8 | 8 | 16 | 4 |
| 9 | 9 | 9 | 18 | 4 |
| 10 | 10 | 10 | 20 | 4 |
RELATED ARTICLES -
- 10 Easy Ways to Prevent Electrical Hazards
- 3 Time-Saving Contractor's Tools that Pay for Themselves
- Creating a Fire Protection Plan for Your Business
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