You have to go all the way into the framing of your walls to make this change. One or both of the stud sets will have to be moved and a new header fabricated, and probably some electrical wiring moved as well. You will want to shore up the ceiling while you have the studs removed. You may be able to get by with just a little cutting of the outside walls and siding. This will be a pretty involved job for someone with little experience with this type of thing. Weather may be a major issue, depending on where you live. I suggest that you start by doing your homework in the library and read all you can about framing and reframing a house. The work is not all that difficult but a lot of knowledge and planning will make the job go a lot easier and safer.
Henry in MI
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