New Window in Wall without window

It's not that hard (I've done it in a couple of remodels) but there are some things to consider. You will absolutely have to remove a lot of drywall on the inside of the wall. Window openings require a header, jack studs, cripples, and you'll likely need to remove an existing stud (or two, depending on the width of the window). And of course you'll be doing this to a load-bearing wall so some temporary support is likely called for.

Cutting the exterior siding is actually the easiest part. Once the window opening is framed in, just cut around it with a sawzall.

Certainly DIY doable, if you do your homework.

CUT NOTHING until you determine that there are NO PIPES and NO WIRES running through the wall. ASUME NOTHING.

Thanks

Thanks for the input, All. I think I have a handle on the project. I did a little reading over the weekend, and you're right-it shouldn't be to bad.

Thanks again.

DocTaylorDVM said:

My Question: Is it possible to place a new window in a wall with no window currently and cut the siding (hardiplank) exactly to fit AND still do appropriate flashing? My understanding is that this would be tough to accomplish, but I might be wrong. Any thoughts are appreciated.

Thank you.

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The industry standard for window installation and flashing (AAMA 2400-02) requires the use of minimum 9" wide flashing on all 4 sides of the fenestration opening. The IRC (International Residential Code) also calls for minimum 6" horizontal laps of flashing to buiilding paper (R703.2).

In order to get that flashing properly integrated and lapped into the existing building paper, you really need about 12" around the entire window perimeter.

Unfortunately, that usually means pulling a lot of siding back to the closest joint. If you are careful, you can save the siding for re-use and simply cut it and reinstall it.

I see a possible structural change and the possible need for a permit anyone else? What does your municipality require for making a structural change in regards to pulling a permit or do they not require a permit at all on a project like this? Make a quick call to the codes department and ask them the pertinent question.

Good luck and be safe!