Know Anything About Concrete?

[Jamnanc]

The product you want at the bottom of the wall is surevoid. Basically cardboard boxes that squish if the slab moves. Might ruin some of the purpose of your walls though. If my guess is right.

[ChunkyMonkey]

The product you want at the bottom of the wall is surevoid. Basically cardboard boxes that squish if the slab moves. Might ruin some of the purpose of your walls though. If my guess is right.

To keep it simple..anchor to the bottom but build it w/ its own roof 4 inches short of the basement ceiling (like a safe room), so you don't have worry about settlement.

[HoneyBadger]

To keep it simple..anchor to the bottom but build it w/ its own roof 4 inches short of the basement ceiling (like a safe room), so you don't have worry about settlement.

I was planning on leaving a few inches to spare at the top anyway, but I'm a little concerned because the slab has cuts in it (to guide cracks) and one of them is right in the middle of the room I was planning.

ChunkyMonkey, you're thinking in the right direction. I considered steel, but in my limited research, it seemed that concrete was easier to work with and had a better strength to cost relationship. I could be convinced otherwise... I haven't done enough research yet.