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Old 01-20-2010, 03:44 PM   #1
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humidex


hey just bought a humidex. the cut needed in the joist is 6 1/4''. no where around here has that hole saw available, what can i use to make it larger, i used a 6' hole saw already, pls help, a snow storm is coming...lol

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Old 01-20-2010, 05:45 PM   #2
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humidex


Not sure what a Humidex is, but I can assure you that there is rarely a circumstance that you can cut a 6"+ hole in a joist! 1/3 the total depth of the joist is the max, with no less than 2" of wood remaining top and bottom.

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Old 01-20-2010, 05:55 PM   #3
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you can cut some pretty big holes in TJI joists depending on how far from bearing you are
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