No foundation is needed, including a sheet metal insert of bare iron to protect the stones from heat and a grill grid with chains. The grill grid can be swivelled and adjusted in height, allowing food to be placed on the grill while it cools and turned easily. The grill gallows are galvanized and painted, and the fire and grill area is completely frost-proof. Recommended stone grain size is approximately 25-60mm. Assembly is without screws, using plug connections. Grid height is 40cm, grill diameter is 65cm, inside diameter is 72cm, outside diameter is 92cm, and height is 142cm. Stone requirement is approximately 165kg. The stones are not included in the delivery.