Top Electrical Boxes for DIY Projects
For most DIYers, the Southwire 2-Gang Old Work Box is the top pick because it is easy to install in existing drywall and has secure clamps for non-metallic cable. Its main limitation is that it only fits 2-gang devices, so you may need other boxes for single or multiple switches.
Choosing the right electrical box is crucial for safety and code compliance. DIYers need boxes that are easy to install, durable, and suitable for their project type.
We compared a variety of boxes, including old work, new work, and specialty boxes. Our selections consider real user feedback and technical specifications.
Read on to find the best box for your specific wiring job, whether you are adding a outlet or rewiring a room.
What we recommend
Southwire 2-Gang Old Work Box
This old work box is a favorite among DIYers because it features adjustable mounting tabs that grip drywall securely. It has built-in cable clamps for NM cable, making installation straightforward.
Pros
- Easy to install in existing walls
- Secure cable clamps
- Durable PVC construction
Cons
- Only for drywall, not wood studs
- Holds limited number of wires
Carlon 1-Gang Old Work Box
The Carlon old work box is a reliable choice for adding a single receptacle or switch. Its side mounting ears flip out to clamp onto drywall, and it includes a built-in cable clamp.
Pros
- Simple flip-out ears
- Lightweight and easy to handle
- Affordable for one box
Cons
- Not for new construction
- Can be tricky in thick drywall
Raco 1-Gang New Work Box
This metal box from Raco is designed for new construction, attaching directly to wood studs. It is sturdy and provides a solid ground path for metal conduit systems.
Pros
- Heavy duty metal construction
- Easy nail on installation
- Allows metal conduit connection
Cons
- Requires open wall access
- More expensive than plastic
Sigma Electric 1-Gang Old Work Box
The Sigma Electric old work box is a cost effective solution for adding outlets to finished walls. It has a simple design with adjustable tabs and a capacity of 20 cubic inches.
Pros
- Very affordable
- Works with most drywall thicknesses
- Includes screws
Cons
- Tabs may not be as sturdy
- Not suitable for heavy fixtures
Arlington 2-Gang Low Voltage Box
This Arlington box is specifically for low voltage installations like HDMI, coaxial, and Ethernet cables. It does not require a box per code, but this bracket provides a clean mounting point.
Pros
- No ground wire required
- Easy to cut in
- Allows for multiple cables
Cons
- Not for line voltage
- No clamps for NM cable
Bell & Gossett 4-Inch Square Box
This deep square box provides ample space for many wires and can be used with mud rings to support multiple devices. It is ideal for junction boxes or when you need extra room for connections.
Pros
- Large capacity
- Works with various mud rings
- Strong steel build
Cons
- Requires mounting to studs
- Need separate mud ring for devices
Gardner Bender 1-Gang Old Work Box
Gardner Bender offers this simple old work box that is easy to install and remove, making it a good option for temporary setups or testing. It has a compact design but still meets code.
Pros
- Lightweight and easy to work with
- Quick to install
- Low cost
Cons
- Smaller volume
- May not fit larger devices
Side by side
| # | Model | Material | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | Southwire 2-Gang Old Work Box | PVC | Retrofitting outlets in drywall | 9.4 | Check price |
| 2 | Carlon 1-Gang Old Work Box | PVC | Single switches or outlets | 9.1 | Check price |
| 3 | Raco 1-Gang New Work Box | Galvanized steel | New construction or open walls | 9.0 | Check price |
| 4 | Sigma Electric 1-Gang Old Work Box | PVC | Budget friendly retrofits | 8.7 | Check price |
| 5 | Arlington 2-Gang Low Voltage Box | Plastic | Data and TV cables | 8.5 | Check price |
| 6 | Bell & Gossett 4-Inch Square Box | Galvanized steel | Large wiring jobs or multiple devices | 8.8 | Check price |
| 7 | Gardner Bender 1-Gang Old Work Box | PVC | Quick temporary installations | 8.0 | Check price |
How to choose
Good to know
What is the difference between old work and new work electrical boxes?
Old work boxes are used when drywall is already installed. They have wings or tabs that clamp against the drywall from behind. New work boxes are attached to framing before drywall goes up, using nails or screws.
Can I use a plastic electrical box with metal conduit?
No, plastic boxes are not designed for metal conduit. You should use a metal box that is properly grounded when using metal conduit, to maintain a continuous ground path.
How do I know if an electrical box is large enough?
Electrical boxes have a volume rating in cubic inches. The National Electrical Code specifies minimum box sizes based on the number of conductors and devices. Check the label on the box for its volume and compare it to the required fill.
Do I need a special box for ceiling fans?
Yes, ceiling fans require a fan-rated box that can support the weight and vibration. Standard boxes are not strong enough. Look for boxes labeled as fan-rated.
What is a low voltage box used for?
Low voltage boxes are used for data, audio, and video cables such as Ethernet, coaxial, or speaker wire. They do not carry dangerous currents, so they don’t need to meet the same requirements as line voltage boxes.
Can I install an electrical box without a stud?
Yes, you can use an old work box that clamps onto the drywall. These are specifically designed for locations without a stud, as long as the drywall is intact and can support the box.
How many wires can fit in a 1-gang box?
It depends on the box volume. A typical 1-gang box has about 20 cubic inches. The number of wires allowed is calculated based on wire gauge and the size of devices. Always follow local codes and the box’s fill capacity.
Are metal boxes more durable than plastic?
Generally, metal boxes are more durable and fire resistant. However, plastic boxes are non-conductive and easier to handle. For most DIY indoor applications, plastic is sufficient, but metal is often required for commercial or industrial settings.
Our pick
For most DIY electrical projects, the Southwire 2-Gang Old Work Box is the best all-around choice. It offers easy installation, secure cable management, and reliability. If you are working with low voltage, choose the Arlington 2-Gang Low Voltage Box. For new construction, the Raco 1-Gang New Work Box is a solid pick. Avoid picking a box solely on price; ensure it meets your project’s requirements.
