The space will be used as a library and office space. Picture over-sized pillows on the floor and lots of children's books strewn about.
To put in a new floor, I have to install sturdy joists, subfloor, drywall (on the ceiling below), and some minor electrical wiring (I can hear them saying "it was only a minor electrical fire...).
So far, I've cut away the sections of wall where I plan to hang the joists. This exposed composite beams, which you can't nail into. So, I had to bulk them up with some plywood and 2x8 material to act as a nailer for the joists. See below, the exposed beam, and my additional lumber tacked on.
And here is what it looks like with the joist hangers nailed up. The joists won't go in until later. I need to do the wiring first. Again, it's a panorama of a rectangular space, so forgive the warped sense of curvy space.