The floor height is 4 meters. The floor height of the restaurant includes the net height (the height from the finished surface of the ceiling to the lower surface of the structural floor slab) and the beam height (taking into account the air conditioning, sprinkler and other required space is 0.8 meters, the beam height according to the calculation of the column spacing will not be less than 0.8 meters, the practice layer 0.1 meters). For example, the net height requirements of the Chinese restaurant and lecture hall can not be less than 3.2 meters, without taking into account the air conditioning, sprinkler and other needs of space, beam height according to the calculation of column spacing will not be less than 0.8 meters, then the floor height is 4 meters.