To prevent damage of freight or the like surely by securing a vibration preventing function of a floor body excellently during transportation.

In a freight box having a front wall, a back wall, a left wall, a right wall, a top part and a floor part in which at least the back wall can be closed and opened freely, the floor part, in which the floor part body is fixed to a supporting frame body forming a frame via a vibration-proofing body attachably and detachably, can be taken out from the backward by opening the back wall, while the vibration-proofing body is taken out from the supporting frame body by pushing up the floor part body removed from the supporting frame body from the ground with a pushing-up means.

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