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Old 12-15-2009, 09:39 PM   #16
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Will this header work?


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After reading this, I think I'm going to bring the span down to 60". With this I will use the 2 2x12 on the triple jacks.

Back to the other load bearing span. The 48". Now I guess to keep things even I will raise the header from the 2x10 to a 2x12. Is one jack enough for this, or would the double be better support. Aesthetically the single will look better when done. But don't want to give up structural integrity.
single jack is sufficient on 48" opening. double jacks on 60"+ openings.

there's no reason for you no to open up as wide as you like. a double 12" LVL header will pick up your 77" opening, granted you have no unusual loading in that part of the house.

it's hard to give good solid advise without actually seeing the frame

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Old 12-15-2009, 09:59 PM   #17
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Thanks, Going to check out LVL beams tomorrow.
Another question,though.
I replaced a 2x4 flat beam running across an exterior non load bearing wall. The span is 110". It is the header above a row of three windows. I replace the 2x4 with a sistered 2x6 on a single jack stud. Now I'm looking at all these numbers and am thinking I should go with more support. Photo is attached.
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Old 12-15-2009, 10:50 PM   #18
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Is there support to the header between the windows ?
Seems like it should be load bearing with the floor joists landing above it
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Old 12-15-2009, 11:05 PM   #19
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there are no supports between the windows.
now I see it is load bearing. there is nothing above it, but now I see it carrying the weight of the ceiling joists.
How can this load then be held by a single 2x4 for over 80 years?

With this past history of support should I increase the beam and add a double jack.
I didn't remove the original 2x4, only the cripple studs. The original studs were cut to make the new jacks and new kings were added.
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Old 12-16-2009, 12:52 AM   #20
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"single jack is sufficient on 48" opening. double jacks on 60"+ openings." from: ClemS. I'm interested as to where you are getting this information from? In Post #8, I referenced the IRC table for interior headers and there are 13 places listed that required 2 or more jack studs under each side of spans under 5'. Why would you want the OP to build less than minimum code and put someone at risk?

Not just the ceiling, but is that plywood floor above in the picture? And what is above that wall upstairs? Any roof attached?
Be safe, Gary
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Old 12-16-2009, 02:13 AM   #21
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above this section from the exterior wall is part of the second roof. The roof here slopes back to a bedroom on the second floor. this room seems be supported on the first floor by a beam which runs across the area a few feet from this exterior wall. I don't have any photos now to show this.
this exterior wall is also the front end of the basement. There is no stud down there at this part just the cement blocks of the foundation and a crawl space coming from a full basement.
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Old 12-16-2009, 01:47 PM   #22
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As we find out more and more, I suggest consulting a Structural Engineer.

Be safe, Gary
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Old 12-16-2009, 02:34 PM   #23
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As we find out more and more, I suggest consulting a Structural Engineer.

Be safe, Gary
ummm, ya......that's why I asked the questions in my post on this thread.
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Old 12-16-2009, 07:59 PM   #24
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I'll look into it.
What I'm curious about is that the house stood over 80 years with only a single 2X4 nailed to a king stud as a header here. I can't Imagine how adding a double 2x6 and jack studs could reduce the structure.
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Old 12-16-2009, 09:54 PM   #25
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Old wood, hard as brick some of it
Outside sheathing helps too
Is this a gable end ?

What is between the windows ?
Hollow ?
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Old 12-16-2009, 10:13 PM   #26
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yes it is a gable.
it is hollow between the windows.
can't run a stud there without reframing all the windows. The three are in one frame
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Old 12-16-2009, 10:18 PM   #27
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Just put studs in the hollow portion, make them tight
Add small cripples above if needed
That's all you need with the header you have

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