The outside dimensions of a Trünk container are 39 inches long, 23 inches wide and 18 inches tall (99 x 58 x 45 cm). The inside dimensions are 36 x 20 x 15 inches (91 x 51 x 38 cm). Trünk can be shipped and stored flat, it has a rectangular base and collapses to a height of 7 inches before being assembled.