I know what flush means, but not sure I get the distinction your talking about.
6x6 for walls, 1x1 or 2x2 for floor.
The glass block is 8x8x4. One wall will have 24 blocks, the other 18. Wanted to stop these walls about a foot short of the ceiling, any way to do that?
Yes, a bench in the corner. Two niches.
No access from below, and I'm doing the framing.