Running Electrical Wire Through Floor Joists

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Running electrical wire through floor joists. Make sure you use ul rated in wall wiring that meets local building and fire codes including cm cmr or cmp for computer networking and cl2 or cl3 for speakers. Can you run electrical wire through floor joists. Smaller wires must be run through bored holes or be attached to a running board. Staple the cable to the 1x2.

The purpose of running boards for the wire is so that no ceiling material can be applied directly over the wire not for wire support. One reason you are not allowed to run wires across the bot tom of floor joists is to eliminate the temp tation to use the 12 2 wire for your kitchen gfi as a place to hang laundry. Run the free end of the cable to the next stud cavity location. I d run it close to and parallel with some other obstruction e g a duct or pipe that will already have to be dealt with if the basement is finished later.

Always turn off the breakers in your electrical box before you begin to reduce the chance of an electrical shock should you accidently cut or drill into existing wiring. Otherwise you can run them along the bottom of the joists if you install a running board which can be as simple as a 1x2 nailed to the bottom of the joists. The hole cannot be larger than one third the depth of the joist so the maximum hole size for a 2 12 joist actual size 1 1 2 x 11 1 4 in is 3 3 4 in. Move it out 1 1 4 form the strapping and it does.

Adding a new ceiling light direct wiring an attic fan or installing any other type of overhead electrical fixture requires access to electricity. Even if wire is run parallel to a joist it must be held that distance from the edge. What are the codes for drilling or notching joists. Code says that you may not staple wires to the bottom of a floor joist unless the wire is 6 2 8 3 or larger.

Attaching an electric wire under a ceiling joist. Strip the end of the sheathing attach the wires to the fish tape and tape them in place. Wires to the bottom of a floor joist unless the wire is 6 2 8 3 or larger. Make sure to use approved attachment methods drilling holes through joists or stapling the cable where required.

You can drill the holes anywhere along the length of the joist first photo. 1x3 strapping with wire running beside it would not meet that requirement. Smaller wires must be run through bored holes or be attached to a running board.