[norseman]

Good afternoon- Thanks to Ground Trades Exchange and its contributors for an extremely informative site.

Does anybody have fact (or sound opinion) on the feasibility of putting a grill island directly on a flagstone set in dust patio? Or must it be set on a poured concrete foundation? Pertinent facts:

- Island will be steel stud/fiber reinforced cement construction (not brick/block)
- Fully loaded island will weigh 500-700 lbs
- Island will be roughly L-shaped, the weight will be born by a roughly 8' x 12' area
- Location is Zone 7 (frost/freeze)
- Gas/water will not be piped in.

Thank you!

-Ben