How big can a floating slab be?

How big can a floating slab be? Although some code jurisdictions allow the use of monolithic floating slab foundations on detached garages and accessory buildings of up to 2,000 square feet in area, most restrict them to just 24’x24′ (576 square feet) or less. How thick should a floating slab be? Around the edge of … Continue reading How big can a floating slab be?