Hole size for 8 gauge wire.
#1
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Hole size for 8 gauge wire.
I'm running an 8-gauge wire in my basement (long story short), and I need to know what the minimium code requirement is for the size of the hole I should drill thru the floor joists to run the wire.
B/c of the size of the whole, is it even code/allowed to run it thru the floor joists? Is it (not) recommended?
Bubba
B/c of the size of the whole, is it even code/allowed to run it thru the floor joists? Is it (not) recommended?
Bubba
#2
A 3/4" hole would be sufficient. Code requires you to use a fire barrier caulk when transversing floor to floor. Joist to joist make your hole in the center and not on the bottom 1/3 of the joist. If you have TJI I-Joists, there are knockouts which will allow you to run the cable.