Sorry, but don't know if this belongs here, it is ventilation and galv material!
So I want to install a bathroom fan in my already finished basement bathroom. The only thing is that the floor joists are running perpendicular to the shortest route (about 4' of run). Meaning I'll have to drill 4-1/8" diamater through my 2x8 floor joists.
Coincidentally, the upstairs bathroom is directly above my downstairs bathrrom as well.
Would there be any problem drilling this size hole in about 4-5' worth of floor joists?