It was three levels (here are the top two):
Upper/ Sear Grill............274 Sq"..........18 m2
Lower Grill....................329 Sq"........ .21 m2
Main Grill......................375 Sq"........ .24 m2
Total Grilling Area...........978 Sq"........ .63 m2
It also works with a rotisserie set up (I have used both 8" and 6" cages).