I have a one car garage, underneath my house. The garage door is standard size, when lifted it slide up across the ceiling. I want to remove it and put up a permanent wall, turning this room into a bedroom. The surrounding wall outside is concrete, the inside wall is finished with plaster. I want one window in the new wall. The exterior appearance is not that important, but of course the inside is. Any suggestions would be appreciated.
You will need to frame a wall where the opening is to close the opening and give you an interior wall. Standard framing techniques will work but check with the building dept. for local codes. The wall should be the same thickness as the concrete wall and will need to be insulated and sheathed to match face of the outside and inside walls. The window can be framed in at thid point. It can then be drywalled and finished inside.