Active job

Concrete slab laying for garage area under house.

House is on piles with garage/workshop area underneath. Area under house is approx 90sq/m ( 13.7m x 6.5m) with an existing rectangular slab of 32sq/m. I'd like to extend the slab to cover the remaining garage area while keeping the existing slab, so an additional 58ish sq/m is required. It is bare soil (clay perhaps), on a very slight gradient. Will want to include reinforcement and maybe some drainage. Surface of current slab is about 160mm above soil (see picture). Access to under house is easy through large roll door, but there is a steep driveway, large trucks have made it up there before. Timescales... asap, hoping for within the next 4 to 6 weeks.