Reply by Ted

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Posted on Any framers out there - need to cut a ceiling joist

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2847 posts in 2212 days

#1 posted 07-12-2012 01:58 AM

Ahh.. okay.. I misread your post and thought you intended to just cut a round hole.

I use a carbide grit blade on my reciprocating saw to cut through rock-lath plaster. It’s the least dustiest way I know how and gives a nice clean edge for patching.. but you’re probably way ahead of me on that one too. :)

Now I get the question, right there at the bottom of your post as plain as day (I always miss the obvious). I don’t see any need to beef up the uncut joists for just that one. I wouldn’t even double anything for that little space, but doing so doesn’t hurt anything either.

You’ll probably have to do the same with the rafters, unless there’s room to angle the duct around the rafter above the joist. That will be the fun part. :)

-- You can collect dust or you can make dust. I choose to make it.

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