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pacobanca 12-18-2011 09:51 PM

Making use of under the stairs.
I need extra space for my tools and other garage toys, so I figured I would see what lies behind the sheet rock under my stairs. The wall is in the garage, so making a mess was no big deal. I cut a 4"x4" square and moved the insulation out of my view. The inside looks great for what I want! The question: After I cut out an area big enough to move into that space, do I need to insulate that room from rest of the house? If so, do I need to put dry wall over the insulation?

Where the black square (duct tape) and above the garbage cans is where I want to cut the opening. To the left is the stairs and hallway. There is currently only insulation behind the wall that I plan on cutting. The rest of that space has no insulation right now.

I'm pretty new to this kind of house work DIY stuff, so I apologize if this is noobish.

joecaption 12-18-2011 10:00 PM

No one here can see what your trying to do.
A few rules, all sheetrock needs to be covered with sheetrock, if it's a wall attached to the house living space then it needs to be 5/8 fire code sheetrock.

epson 12-18-2011 11:17 PM

please provide pictures for us to better understand what you are trying to do...

pyper 12-19-2011 06:52 AM

If the garage is not conditioned space, then you need insulation. Both in the wall, and under the steps. Nearly all insulation needs to be covered because it's a fire hazard. Roxul brand mineral wool insulation is non combustible, and there might be others.

Easier than insulating under the stairs, you could build some insulating doors to cover the new openings. Get 2" rigid foam and glue it to plywood.

Don't cut any studs, unless you can verify they are not structural (i.e., that your wall is not load bearing).

When it comes to the lower area, you might want to consider drawers that extend under the stairs.

BigJim 12-19-2011 02:30 PM

Please be sure the room you are opening into is sealed against carbon monoxide and gas fumes from the car, you don't want that in the house, that is code.

pacobanca 12-19-2011 08:43 PM

Sorry, updated with pic.

Msradell 12-19-2011 09:37 PM

You need to have a complete uninterrupted fire rated sheetrock wall between your garage and living space. This will also should be completely insulated to provide a thermal barrier. Your best bet would probably be to install a door in that wall (a header will need to be provided when the studs are cut out for this) then you could insulate and sheetrock of the interior of the new room.

pacobanca 12-19-2011 10:02 PM

Guess I'm in a little over my head then :\

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