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How many Jack studs?

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ShellBuilt

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Discussion starter · #1 ·
I have a 11' header that is supporting some I joist center span for the second story. How many Jack studs do I need to support the header. It currently has 6 Jacks under the one side and I want to reduce that to only 2, but I have a sub that is adimit that we can't take 4 out. I think the only reason there is that many is to build the wall out so a cabinet can die into the side of the wall and not be sticking out past the wall. My understanding is one Jack up to 5', 2 up to 12', then 3 after that. Help me solve this debate.

Thanks
 
Discussion starter · #6 ·
This is a kitchen remodel so there is no plans for the house. It is a lam and has no walls sitting on it, just supporting the span of the I joist for the room upstairs. I don't plan to move the header, I am just opening up some of the walls and want to build a nice column around the king and jacks. I hope this all makes since, it is hard to explain on here.
 
#11 ·
CadetC said:
Is there a way to add king stud and bolt jack studs to double king stud?
Load can be then partially transferred to king studs and you can eliminate some of the jack studs
Click to expand...
KennMacMoragh said:
I don't think that works
Click to expand...
Thanks Kenn, you beat me to it.

I can't recall a situation where a double king was used to reduce load on jack studs (Trimmers out here). Double & Triple Kings are used to, stiffen walls, have anchor points for seismic tie downs & upon occasion to increase edge nailing in a shear situation.
 
#13 ·
around here a single jack is fine for a header up to 5' long, from there its a double up to 7'6". once a header is 7'6" its classified a beam and either has to switch to 3ply or go to double ply lvl or a glulam beam.

standard rule of thumb for posts. beam must bear on a post as wide as the beam is thick. we triple ply and sometimes 4ply our posts for lvl beams. inspectors cant say anything other than "thats alot of wood"
 
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#17 ·
Ive put in headers over 3' doors that required 3 trimmers and 2 kings. Headers that are 10 ft long 3 1/2"x 12" glb that had 4 trimmers and 3 king studs, and 10 ft headers that only needed one trimmer. You cant give this kind of advice without knowing exactly what the loads are. Some one who's telling you the loads with out a picture or you actually seeing it might not be giving the exact situation thats there. There might be a double cripple that they only see as a stud that supports a ridge, valley, floor beam, who knows.
 
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NailBanger1970
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