A transportation box (100) is provided. The transportation box is adapted for optimizing the utilization of available space within a standard intermodal freight container (200), said standard intermodal freight container having an inner length, L, an inner width, W and an inner height, H. The transportation box comprises two oppositely arranged sides (2,2'), a front wall (4) comprising at least one door (6); a rear wall (8); a floor (10); a ceiling (12); wherein any one of said oppositely arranged sides; any one of said front wall and said rear wall; and any one of said floor and said ceiling, respectively being mutually angled at approximately 90°; wherein said two oppositely arranged sides on their respective inner surfaces comprise a set of support elements (14) for supporting one or more load bearing shelves (16); wherein said transportation box having an outer length, l, an outer width, w and an outer height, h, and wherein said set of support elements (14) for supporting one or more load bearing shelves (16) comprises shelf receiving recesses (18) arranged at the interior of the two oppositely arranged sides, thereby enabling sliding in one or more load bearing shelves (16).
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