how to build?

[tompapa]

Thanks again for the advice everyone. It turns out that your typical cost on a post tensioned slab, say 10" to 12" thick, on the ground, including preparation of the subsurface, formwork, and concrete is around $12/ft. My job will be different as I'll only use their guys for the placement of the tendons and the tensioning but all the issues surrounding the use of concrete lead me to think I'd best take a good look at the steel option.

I guess in the end I'm probably dumb enough and bullheaded enough to attempt this so we'll see how it goes, lol!