For our 28x32' build.......
Option 1
6" slab
Excavation for slab $2500
Slab itself $5500
$8000 total
Option 2
4' Frost walls
Excavation $4,000
Cement work $8,950
Call it $13,000 total
Leaning towards the Option 1 slab, have a little more steel installed and see if they can excavate and...