We were just there and sat 12 at the grill.
Maybe 15. Think the sides sit five on each side with the sides around the hibachi grill. they will accommodate you
I've sat 10 at our table comfortably, but they could probably do two more.
They usually try for 10 but I think they can squeeze about 12.
Probably 7-8 at the grills... And I imagine they could put together some tables in the regular dining to accommodate.
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