Cutting through header joist

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  #1  
Old 04-29-05, 07:08 AM
Tamarin
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Cutting through header joist

Hi all,

I'm installing a fan into the downstairs bathroom and would like to run the exhaust out through the header joist (The joist that picks up the floor joists along the outside wall, is it called a header joist?). The joist is 2x10. The question is, can I cut a 4" dia hole without reducing the structural integrity of the house?

Thankyou,

Andy
 
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  #2  
Old 04-29-05, 03:44 PM
Doug Aleshire's Avatar
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Tamarin,

I'm installing a fan into the downstairs bathroom and would like to run the exhaust out through the header joist (The joist that picks up the floor joists along the outside wall, is it called a header joist?). The joist is 2x10.
I am assuming that you are referring to the RIM joist located on the outside wall? You can make a 4" hole here without compromising anything.

Good Luck!
 
  #3  
Old 10-09-06, 12:26 PM
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8" for kitchen vent duct through rim joist

I have the same question from a bigger hole for kitchen vent duct. it needs to go with the direction of upstairs floor joists and reaches to rim joist at the end.

Can I cut a 8" hole on rim joist without structure damage??
 
  #4  
Old 10-09-06, 12:29 PM
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30all,

No problem in doing so.

Hope this helps!
 
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