A self-assemblable container, manufactured from ecologic materials such as standard fiberboard, comprising as its main structural elements a bottom, two longitudinal sides and two transverse sides, all of a quadrangular shape and having cauterized perimetrical faces from obtaining the main structural elements by a perimetrical laser cutting process, the main structural elements being assembled together by the insertion of flexible tabs into receiving slots, the sides of two main structural elements which in the assembled container are adjacent each other having one or the other so as to correspond, wherein the container may further comprise an antisagging brace, a lid and/or two transverse laths.