Romex Through Floor Joists

From the top and the bottom if it s a dimensional lumber joist.

Romex through floor joists. Keep the hole at least 2 in. Circular holes are drilled in the wood to allow the wire to pass from one side to the next. Does this include crawl space installations. To ensure the joist remains strong the hole needs to be drilled in a specific location to avoid further weakening your floor.

The reason i am asking if for a realtor. Romex in photos is hanging along the underside of some joists and running through punch outs in others. I found a section in the code that states romex must run through joists and not be stapled to the underside. 1 set a stepladder below one floor joist requiring a hole for romex.

Thank you mat similar threads. 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. The whole thing is a rats nest. I need to run about 8 x 14 2 wires 12 wire water heater 10 dryer wire and 2 x 12x2 wires through a set of 10 floor joists 2x10.

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. Diameter plenty big enough for running cable. She had a home inspector. House wires are frequently run through both vertical framing members such as wall studs and window cripples or through horizontally placed floor and ceiling joists.

I m in bc canada and need to figure out how many holes i need to bore in the dimensional floor joist lumber and the number of wires i can run in each hole as a run across the room to a main panel.