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Structural Soundness

Posted by Shadow on June 3rd, 1999 12:49 PM
In reply to Holes by drhome on April 11th, 1999 04:24 PM [Go to top of thread]

1 of 1 people found this post helpful

As a structural engineer, I hesitate to say 'as many as you want' with no structural effect. I think a safer piece of advice is to say as long as your holes are 2 1/2" or further up from the bottom of your joist, you shouldn't have any problems. The bottom of your joists should never be notched out, though, particularly near mid-span, as this area is the primary stress point of your joists.

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