Running Copper Pipe Through Floor Joists


Old 01-17-05, 05:41 PM
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Running Copper Pipe Through Floor Joists

I currently have a few 1/2" copper pipes running directly beneath my floor joists in the basement. I already know it's unacceptable to notch the joists to pass pipe through, but what about cutting through them? I assume for a 1/2" pipe, a 3/4" hole would be neccessary. Is this bad practice? If it's OK, any guidance for how close to the center of the joist I need to cut the holes?

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Old 01-18-05, 12:56 AM
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Your local building official will be able to provide you with the specific boring schedule adopted for your area.
Old 01-21-05, 04:28 AM
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Notching is acceptable

Notching is perfectly acceptable as long as the notch is not in the middle 1/3 of the joist and does not exceed depth limits set by your code.

As snoonyB suggested, call your code office.

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