A constructive assembly, comprising: - a plurality of guide profiles configured in the form of a rigid rod extending along a first longitudinal direction (X-X'); - a plurality of blocks, wherein: the blocks have an elongated configuration extending along a second longitudinal direction (Y-Y'), the blocks comprise a first supporting base (2.1) and a second supporting base (2.2) parallel to the first supporting base (2.1), wherein both supporting bases (2.1, 2.2) are in turn parallel to the second longitudinal direction (Y-Y'), the blocks comprise at each end according to the second longitudinal direction (Y-Y') a cavity (2.3) located between two fixing flanges (2.4, 2.5), wherein the cavity (2.3) is intended for receiving a guide profile of the plurality of guide profiles such that said guide profile limits the movement thereof according to a direction (Z-Z') transverse to the second longitudinal direction (Y-Y') and parallel to any of the supporting bases (2.1, 2.2); wherein - the plurality of guide profiles are fixed and distributed such that they are parallel to and spaced from one another; - the plurality of blocks are distributed such that they are stacked between two of the guide profiles of the plurality of guide profiles, wherein for each block of the plurality of blocks a guide profile of the plurality of guide profiles is housed at least partially in the cavity (2.3) of one end of the block and another guide profile of the plurality of guide profiles is housed at least partially in the cavity (2.3) of the opposite end of the block, and - each block is secured to the two guide profiles maintaining a sliding attachment according to the longitudinal direction (X-X') of the guide profile; characterized in that the blocks located on either side of one and the same guide profile have overlapping fixing flanges (2.4, 2.5), giving rise to gaps in the constructive assembly wherein blocks comprising overlapping fixing flanges (2.4, 2.5) are configured such that: - blocks located on either side of one and the same guide profile comprises fixing flanges (2.4, 2.5) that have a size such that each fixing flange (2.4, 2.5) of a block at one side of the guide profile reaches a fixing flange (2.4, 2.5) of a block of the adjacent stack, that is, a block located at the other side of the guide profile and, - the lower base of a block does not rest on the block located immediately therebelow but rather on the fixing flanges (2.4, 2.5) of the blocks of the adjacent stacks. - a plurality of guide profiles configured in the form of a rigid rod extending along a first longitudinal direction (X-X'); - a plurality of blocks, wherein: the blocks have an elongated configuration extending along a second longitudinal direction (Y-Y'), the blocks comprise a first supporting base (2.1) and a second supporting base (2.2) parallel to the first supporting base (2.1), wherein both supporting bases (2.1, 2.2) are in turn parallel to the second longitudinal direction (Y-Y'), the blocks comprise at each end according to the second longitudinal direction (Y-Y') a cavity (2.3) located between two fixing flanges (2.4, 2.5), wherein the cavity (2.3) is intended for receiving a guide profile of the plurality of guide profiles such that said guide profile limits the movement thereof according to a direction (Z-Z') transverse to the second longitudinal direction (Y-Y') and parallel to any of the supporting bases (2.1, 2.2); the blocks have an elongated configuration extending along a second longitudinal direction (Y-Y'), the blocks comprise a first supporting base (2.1) and a second supporting base (2.2) parallel to the first supporting base (2.1), wherein both supporting bases (2.1, 2.2) are in turn parallel to the second longitudinal direction (Y-Y'), the blocks comprise at each end according to the second longitudinal direction (Y-Y') a cavity (2.3) located between two fixing flanges (2.4, 2.5), wherein the cavity (2.3) is intended for receiving a guide profile of the plurality of guide profiles such that said guide profile limits the movement thereof according to a direction (Z-Z') transverse to the second longitudinal direction (Y-Y') and parallel to any of the supporting bases (2.1, 2.2); - the plurality of guide profiles are fixed and distributed such that they are parallel to and spaced from one another; - the plurality of blocks are distributed such that they are stacked between two of the guide profiles of the plurality of guide profiles, wherein for each block of the plurality of blocks a guide profile of the plurality of guide profiles is housed at least partially in the cavity (2.3) of one end of the block and another guide profile of the plurality of guide profiles is housed at least partially in the cavity (2.3) of the opposite end of the block, and - each block is secured to the two guide profiles maintaining a sliding attachment according to the longitudinal direction (X-X') of the guide profile; - blocks located on either side of one and the same guide profile comprises fixing flanges (2.4, 2.5) that have a size such that each fixing flange (2.4, 2.5) of a block at one side of the guide profile reaches a fixing flange (2.4, 2.5) of a block of the adjacent stack, that is, a block located at the other side of the guide profile and, - the lower base of a block does not rest on the block located immediately therebelow but rather on the fixing flanges (2.4, 2.5) of the blocks of the adjacent stacks.