How To Run Conduit Through Floor Joists

In the case of your 2 10 joists the maximum diameter is 35 64 in.

How to run conduit through floor joists.

For certain areas where you can t avoid running to the ceiling half walls for example you can run conduit similar to romex. To minimize problems with ductwork. One plus to using. Position bathroom vent fans so the ducts can run parallel to the joists right up to where they exit the house.

Of solid wood between the top and bottom edges of the joist and the edges of any hole. Wires to the bottom of a floor joist unless the wire is 6 2 8 3 or larger. You can use a plunge cutter or circular saw for this and cleanup with a. Area in the middle of the 2 10.

All nonmetallic cable including romex uses a plastic outer covering to protect the inner wires that carry electrical current. Hey in setting up my home theater i d like to run some conduit from my theater wall to my projector for future cable runs. A favorite target of electrical inspectors is the improper use of non metallic cable nm in exposed locations such as basement foundation walls or along the face of studs and joists in unfinished framed spaces. You can drill the holes anywhere along the length of the joist first photo.

Diameter plenty big enough for running cable. Running stiff conduit through joists. Smaller wires must be run through bored holes or be attached to a running board. 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.

If you need to cut through a joist firm up the floor as shown in fig. You also have to leave at least 2 in. I would staple the wire to the bottom of the floor joists and run it up through the wall and directly to the spa panel. How to cut holes in floor joists for romex.

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. However instead of drilling a hole through the studs you have to notch the edge of the stud deep enough for the conduit to be below the face. That gives you a 5 1 4 in. However the flexible conduit is super expensive and i can t get it locally so i was hoping to use some stiff conduit pipe pvc that i can get at my local hardware store.

Make sure not to install joists so they run parallel to and directly under walls where you intend to install ductwork.