Holes in Wood Studs
Holes in Wood Studs
(OP)
Hello,
I have a 2x6 load bearing wood stud wall that the contractor wants to put conduits through (1.25" - 1.5"). Most of the studs are actually under windows so I have quite a few full height triple king studs. I'm wondering what the max allowable hole through the load bearing studs is. I've read that in a single stud the max whole size is 20% the actual breadth and 60% if it's a double stud, however I'm not sure how realiable the source was. NDS only covers notches (as far as I can tell). Does anyone have suggestions regarding holes?
Thanks,
Alex
I have a 2x6 load bearing wood stud wall that the contractor wants to put conduits through (1.25" - 1.5"). Most of the studs are actually under windows so I have quite a few full height triple king studs. I'm wondering what the max allowable hole through the load bearing studs is. I've read that in a single stud the max whole size is 20% the actual breadth and 60% if it's a double stud, however I'm not sure how realiable the source was. NDS only covers notches (as far as I can tell). Does anyone have suggestions regarding holes?
Thanks,
Alex






RE: Holes in Wood Studs
RE: Holes in Wood Studs
http://ww
RE: Holes in Wood Studs
Garth Dreger PE
AZ Phoenix area
RE: Holes in Wood Studs
that looks like a very valuable resource. It might be worthwhile putting a note in your standard notes or specifications regarding the maximum bored hole size and location for particular studs.
RE: Holes in Wood Studs
Garth Dreger PE
AZ Phoenix area
RE: Holes in Wood Studs
I did find the section in the IBC and discussed with some of my fellow engineers in house. To us, it seems that the guidelines for notching and boring would only be for a single stud or a small percent of studs in a long wall. We think that these notes in IBC are relying on the redundency of the wall to shed the load around the "weak" studs. However, if someone decided to bore through every stud in a wall, there could be major issues due to the complete compromise in strength of the wall. It seems like IBC could be more specific or have more information on this topic.
Thanks again for the help!