Packing structure for packing substrate storing container

An upper cushioning material is placed on a substrate storing container in a packing box. The substrate storing container is placed on a lower cushioning material. The lower cushioning material is disposed in the packing box in such a manner that the substrate storing container is sandwiched in the vertical direction by an upper cushioning material and the lower cushioning material. Furthermore, the lower cushioning material is not in contact with any of a first side plate, a second side plate, a front plate and a back plate of the packing box, and a lower space is formed between the lower cushioning material and the first side plate, the second side plate, the front plate and the back plate of the packing box.