Active job

Foundation for large shed

I'm going to build a 12.3m x 16.1m (198sqm) industrial steel shed (3.6m stud) on my lifestyle block (after lockdown is over, and after consent process). I'd like a quote for the prep and laying of a concrete foundation for this shed. Flat ground. 25 - 30mpa. I'd like it raised 300mm above ground, so perhaps rib raft might suit. I also need a driveway access (3m wide - can be metal, chipseal or concrete) over a small (0.75m) culvert, but that can be a separate job..