I can't believe what a dufus I am!
In order to run a bunch of wire / cable in my basement ceiling, I drilled 2" - 3" diameter holes in all my joists, at about 6" to 9" from the ends near the exterior wall. By code I believe the minimum distance you can drill any hole is 12"!!!!

This means I either leave it and hope the inspector doesn't see it or take out all the cable and ad web stiffeners then re drill the holes where they're supposed to be and then again hope the inspector passes it.

Any thoughts?
Thanks

If you have engineered joists, you are correct. There may be minor variations from each manufacturer.

If you have dimensional lumber (eg 2x10) you should be ok. Holes cannot be within the middle 1/3 of the span, they cannot be closer than 2" to the top/bottom, and they cannot exceed 1/3 the joist in diameter.

Tim

That's why floor trusses are so nice if they are available to you.

Redrill. It's worth the peace of mind.

.

There was a misquote above. Holes are PREFERRED in the middle third of the span and at the mid height of the member. This is the lowest stressed point for a uniformally loaded joists.

If is engineered lumber, call teh joist maker and they will fax you a repair detail that you can give tot he building official. It is usually web stiffeners.

.

Longtimelurker, as a structural engineer, I have to let you know that Jdubb is correct.

Holes should be made in the middle 3rd of the SPAN and they should be located in (or near) the centre of the joist's HEIGHT. In the middle of the span, the top and bottom of the joist are carrying compression and tension with the middle of the height carrying next to nothing. As you approach the ends of the span, the top and bottom of the joist carry less compression and tension, but the middle (height) of the joist carries more shear force.

Dan

cool, thnx...will edit.

Longtimelurker, as a structural engineer, I have to let you know that Jdubb is correct.

Holes should be made in the middle 3rd of the SPAN and they should be located in (or near) the centre of the joist's HEIGHT. In the middle of the span, the top and bottom of the joist are carrying compression and tension with the middle of the height carrying next to nothing. As you approach the ends of the span, the top and bottom of the joist carry less compression and tension, but the middle (height) of the joist carries more shear force.

Dan

All us structural engineers think alike:)
Always good to get confirmation from several sources on matters like this, don't want to do it twice.

Keep trucking along.