8'. There will be a "joint" where I put a another 4' because there is a 13' stretch. The extra foot will be framed for a vent duct.
To be more specific, the room is "U" shaped because there is a "closet" under the stairs that lead to the FROG. That closet is 4' and the main floor of the office is 8' beside it. There is one area that is 10' x 13' at the end.
Edit: super rough layout of the space. The left side is the closet under the stairs.
Edit2: the subframe will sit on a slate floor that is on concrete that is 8" thick. (Remember, was a garage and they put extra concrete into this place.)
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One who does not vote has no right to complain.”
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