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IDIY 03-02-2010 11:06 AM

Header Sizing
 
Hey all. I am going to open up a wall running through the center of my house with a picture window. Rough dimensions of opening will be 3' tall x 6.5'wide. (14" from ceiling and 4' from floor) The exterior walls are the true "load bearing walls" but I am sure there is some dead load on this center wall as well. I am going to cut out 4 wall studs, 16" c-c spacing, and install a header with 2 jack studs up against exsisting studs on each end.

Trying to figure out what size header to make to be safe. Was thinking 2x12 (x2) and placing them directly under the roof trusses. Im also going to use temporary supports on each side of the wall while Im cutting studs/ installing header.

Let me know if you need more info.

Opinions? Thanks

Scuba_Dave 03-02-2010 11:10 AM

Is this an inside wall ?
Do you have a pic of the wall ?

GarageDoorCente 03-02-2010 11:16 AM

First off, size of header varies greatly depending on the weight it is bearing, but 4x12 SHOULD be enough, your "jack up studs" are most commonly called trimmers, and your trimmer nailed to the stud is right, and as per code, there should be about 10-12 nails from the full stud into the header. If your wall is close enough to the outside, then the header is unneeded, and if you're putting in a new wall, then the header DEFINITELY is unneeded. If you're paranoid and just want to be sure, a 4x6 should be more than enough. Don't waste money, especially if you're putting a new wall in an existing house. Expecting the wall to bear weight is the same as expecting that the house will fall without the wall.

IDIY 03-02-2010 12:25 PM

It is an inside wall. It runs perpendicular to the trusses and floor joists and is in the center of my house. The wall runs the length of the house (-) doorways / entrances. This section of the wall has 10 studs, so there will be two studs on each side of the header left untouched + the two studs on each end of the header I will be putting the "trimmers" against + the header. Sorry if thats hard to understand - and I don't have a pitcure right now.

LHS............................................... .................................... RHS
(stud) (stud) (stud)(trimmer) -- header -- (trimmer)(stud) (stud) (stud)

dont know if this explains what Im talking about. On the RHS is an exterior wall on the gable end of the house.

Scuba_Dave 03-02-2010 12:30 PM

One story house or two story?
If you have truss' then usually interior walls are not load bearing on one story

IDIY 03-02-2010 12:32 PM

One story with basement. Talking about first story. Right - thats what I was thinking but was just going to put one in to be safe...

tpolk 03-02-2010 12:51 PM

bad math had question refigured

IDIY 03-02-2010 01:15 PM

Tpolk: I don't understand what youre saying...

Scuba_Dave 03-02-2010 01:22 PM

You are actually putting a window inside the house ?
Or will it just be an opening ?

Doesn't really matter
But I would put a header up, then simply put a 2x12 header up against the top plate
Unless you want the window lower

IDIY 03-02-2010 01:25 PM

Just an opening. 2x12 will work for "appearance". Thanks for the help then - appreciate it

GarageDoorCente 03-02-2010 01:28 PM

Quote:

Originally Posted by IDIY (Post 408334)
It is an inside wall. It runs perpendicular to the trusses and floor joists and is in the center of my house. The wall runs the length of the house (-) doorways / entrances. This section of the wall has 10 studs, so there will be two studs on each side of the header left untouched + the two studs on each end of the header I will be putting the "trimmers" against + the header. Sorry if thats hard to understand - and I don't have a pitcure right now.

LHS............................................... .................................... RHS
(stud) (stud) (stud)(trimmer) -- header -- (trimmer)(stud) (stud) (stud)

dont know if this explains what Im talking about. On the RHS is an exterior wall on the gable end of the house.

yeah there's definitely no need for it at all, it's a waste, where you would put the header just put 2-2x4s for sheetrock. if you want it to be more solid you can make an L with 2 2x4s and then add one more next to the tall part of the L so basically a U with no gaps. if that makes sense. we call the L's stiffbacks.

IDIY 03-02-2010 01:40 PM

That stiffback makes sense. I'll see what I come up with. I'll probably put one in anyway. Probably be a bit overkill but I'd rather do that and feel good about it than not.

Thanks

GarageDoorCente 03-02-2010 02:47 PM

well if there isn't an existing wall i would definitely frown upon doing this, because your house is standing just fine without the wall in, so it won't ever bear any weight..


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