A construction kit, comprising a plurality of position elements and a plurality of construction plates: each of said position elements comprising at least one position pocket (21A, 21B, 21C, 21D) for positioning of a construction plate, wherein each of said position pockets (21A, 21B, 21C, 21D) extends in a plane from an origin in an imaginary Cartesian three-dimensional coordinate system and comprises two plane-parallel interacting and opposite plate shaped holding means (20A, 20B) of thickness (t) with a distance (b) between them for holding a construction plate of thickness, wherein each plate shaped holding means (20A, 20B) has a side length that is larger than the thickness (t), each of said holding means (20A, 20B) comprising a corner with an angle of 90° between two edges extending from said origin wherein, between said two opposite holding means (20A, 20B), said edges comprise orthogonal connections forming partition walls for support for at least one construction plate; wherein a construction plate comprises at least one corner for positioning said construction plate in said position pocket (21A, 21B, 21C, 21D) and wherein said corner starts from an origin in the imaginary three-dimensional coordinate system and has an angle in the region of 20° to 90° more preferred in the region of 30° to 90°, and most preferred in the region of 45° to 90°, c haracterized in that each of said opposite holding means (20A, 20B) comprises two first fixation means which are symmetrically arranged beside, and on both sides of, an imaginary diagonal (d) starting from said origin in said corner and extending at 45° from said corner between said edges in said position pocket and said construction plate comprises second fixation means adapted to be interconnected with said first fixation means for fixation of said construction plate within said position pocket. each of said position elements comprising at least one position pocket (21A, 21B, 21C, 21D) for positioning of a construction plate, wherein each of said position pockets (21A, 21B, 21C, 21D) extends in a plane from an origin in an imaginary Cartesian three-dimensional coordinate system and comprises two plane-parallel interacting and opposite plate shaped holding means (20A, 20B) of thickness (t) with a distance (b) between them for holding a construction plate of thickness, wherein each plate shaped holding means (20A, 20B) has a side length that is larger than the thickness (t), each of said holding means (20A, 20B) comprising a corner with an angle of 90° between two edges extending from said origin wherein, between said two opposite holding means (20A, 20B), said edges comprise orthogonal connections forming partition walls for support for at least one construction plate; wherein a construction plate comprises at least one corner for positioning said construction plate in said position pocket (21A, 21B, 21C, 21D) and wherein said corner starts from an origin in the imaginary three-dimensional coordinate system and has an angle in the region of 20° to 90° more preferred in the region of 30° to 90°, and most preferred in the region of 45° to 90°, c haracterized in that each of said opposite holding means (20A, 20B) comprises two first fixation means which are symmetrically arranged beside, and on both sides of, an imaginary diagonal (d) starting from said origin in said corner and extending at 45° from said corner between said edges in said position pocket and said construction plate comprises second fixation means adapted to be interconnected with said first fixation means for fixation of said construction plate within said position pocket.