You can definitely use a junction box to extend your wiring. To do this, start by turning off the power. Then inspect the place and cut the required openings. Next, position the wires and adjust the box to pass the wires through.

How do I add a junction box to an existing line?


  1. Mount the Box. Separate the circuit wires at the existing splice and loosen the cables as needed to make room for the new junction box. …
  2. Set up Clamps for Each Cable. Install a cable clamp for each cable, as needed. …
  3. Secure the Cables. …
  4. Join the Wires. …
  5. Finish the Job.

How do you reroute electrical wires?

Turn off power to the electrical circuit by turning off the breaker in the circuit breaker panel.

  1. Unscrew and remove the electrical outlet wall plate cover. …
  2. Open up the drywall around the electrical box to see where the wire feeds from. …
  3. Reroute and connect the electrical wire back to the electrical box.

Can you have multiple junction boxes?

There are no limits on the number of junction boxes (without devices) in any particular circuit.

Are electrical junction boxes allowed?

Electrical codes generally require that all electrical devices, and the wiring connections to those devices, must be enclosed in an approved electrical box. Often known as a junction box, this metal or plastic box includes a cover to protect the wiring within and protect you from the wiring.

How many wires can you pigtail together?

The only appropriate way to wire a receptacle in a box with three cables is to use pigtails to connect the receptacles. ​Never connect more than one wire under a single screw terminal.

Are there plastic junction boxes?

Plastic junction boxes are easy to install in many situations. They’re easiest to install during new construction when the wall studs or ceiling joists are exposed. You simply hold the box against the wood framing and drive the two nails that come pre-attached to the box.

How much does it cost to relocate an electrical outlet?

The cost to install a replacement outlet typically ranges from $65-$125. Making a change to your home’s wiring, such as adding a new circuit or moving an outlet to a new location, could cost $200 or more. How long does outlet installation take? It can take less than 30 minutes to replace an existing electrical outlet.

How much does it cost to relocate a breaker box?

Cost to Upgrade and Move an Electrical Box

Amps Average Cost
Upgrade from 60 to 100 Amps $850 – $1,100
Upgrade from Amps $1,300 – $1,600
Upgrade from 200 to 400 Amps $2,000 – $4,000

Is it OK to splice electrical wire?

You might need to splice wires to extend a wire, repair damage, or connect one electrical wire to another. Splicing wire is a technique for joining two pieces of wire together to carry an electrical current. You do this for many projects, like relocating light switches or outlets and making repairs.

Can I put a junction box in a wall?

Junction boxes must be installed where they are always accessible; never install a junction box in a concealed wall or ceiling space where the box cannot be accessed in the future. Junction boxes also must be covered with solid covers with no holes.

Where can you use a junction box?

A small metal or plastic junction box may form part of an electrical conduit or thermoplastic-sheathed cable (TPS) wiring system in a building. If designed for surface mounting, it is used mostly in ceilings, under floors or concealed behind an access panel—particularly in domestic or commercial buildings.

How do I extend my electrical wire with a junction box?

Quote from the video:
Quote from Youtube video: The bottom right left so your wires going to go through there from the inside of the wall into the box then you do your connections with the wire nuts. And that's it put your outlet box on the wall.

Are junction boxes safe?

If the connection is inside a junction box, the risk of a house fire is substantially low. Electrical connections outside of junction boxes that become loose and arc, can create a house fire. Most connections are in the homes attic, where insulation and other building materials can become flammable.

Can you extend electrical wire without junction box?

Short answer: NO. Long answer: All splices must be in a junction box, and the junction box must be accessible.

Do junction boxes need to be secured?

Article 334.30 states that cables coming out of the junction boxes should be secured within 12 inches of the box in all boxes equipped with cable clamps. These cable clamps are not to be removed. 314.17(C) states that cables must be secured to the receptacle box.

Does a junction box have to be mounted to a stud?

They don’t need to be fastened to a stud, so you can install them anywhere.

How far apart should junction boxes be?

The distance between raceway entries enclosing the same conductors must be at least six times the trade size (metric designator) of the larger raceway. Because the 3-inch raceways will enclose the same conductors, the distance between them must be at least 18 inches (3 x 6 = 18).

Can a junction box be behind drywall?

Per their requirements, electrical boxes must be covered with matching electrical box covers. You can’t cover them with drywall, paneling or other wall coverings. The box also needs to have enough space for the conductors inside.

Why can’t you cover a junction box?

Electrical wires run behind the walls and through the ceiling of your home, meeting at junction boxes. It is a safety hazard to completely bury a junction box in a wall.

Can you turn an outlet into a junction box?

During remodeling projects, you may need to convert an existing plug-in outlet into a junction box, perhaps if you’re going to build cabinets or closets in the area. You must keep the junction box cover accessible, but it’s dangerous to simply leave an outlet in a place difficult to reach.