2" x 4" ( 3 5/8" ) stud

[618electrician]

What is the biggest hole i can a 2x4 stud for wire ? (2017 nec) ?????????????????????????????????????????????????????????????????????????????????????????????????????

 

[LarryFine]

1" without protectors.

 

[infinity]

If the stud is actually 3 5/8" as it says in the title then the largest hole without anything additional as Larry mentioned would be 1 1/8".

1.25+1.25=2.5
3.625-2.5=1.125 or 1 1/8".

 

[retirede]

To add the obvious….if you choose to drill the maximum hole size, it must be exactly centered!

 

[Rick 0920]

Nail plates are an option if you need a larger hole. Just be careful if it's a load bearing wall. You are limited to how much you can take out.

 

[gadfly56]

Nail plates are an option if you need a larger hole. Just be careful if it's a load bearing wall. You are limited to how much you can take out.

Yeah, tell that to the plumbers!

 

[NEC Inspector]

For structural concerns in wood frame construction, no larger than 1 3/8", for 2x4 studs, no more than 1 3/4" for double top plates.

Electrical clearances to avoid nail plates are as stated above by others.

We produced this guide for trades to know how much they can cut out of wood and leave it still structural.

Most importantly - you cannot drill 2x4 rafters AT ALL. Even a little hole to run Romex through. Not and meet code for structure.

All notching and boring of sawn lumber is the same between residential and commercial structural codes.

 

[NEC Inspector]

Yeah, tell that to the plumbers!

 

[Seven-Delta-FortyOne]

View attachment 2580319

On the other hand, that is also the framer and or supers fault, because all drain locations should be boxed out. Even if it retrofit, box it out.

 

[gadfly56]

On the other hand, that is also the framer and or supers fault, because all drain locations should be boxed out. Even if it retrofit, box it out.

What, you mean do it right the first time?!? Perish the thought!

 

[NEC Inspector]

On the other hand, that is also the framer and or supers fault, because all drain locations should be boxed out. Even if it retrofit, box it out.

The truth is, it was all on the framer this time. The plumber knew better, so he called the framer when he found the joist in his way, and the framer told him to just cut the joist out like that and the framer would fix it later. It was just too good a picture to spoil with that info up front