Levelling spacer system

A levelling spacer system for laying tiles for coating surfaces, comprising:

• a block equipped with
• a base positionable posteriorly to a laying surface of at least two tiles arranged adjacent and flanked with respect to a flanking direction;
• and
• a separating element which rises from said base at right angles thereto and is configured to be inserted between side walls facing said two flanked tiles, wherein the separating element comprises a through window, a shaped edge of which facing the base is placed at a distance from the base greater than a maximum height of a visible surface of the tiles from the base itself;
• a pressure wedge suitable to be inserted at least partially into the through window between the visible surface of the tiles and the shaped edge along a crossing direction parallel to the flanking direction;
• and
• a plate configured to be interposed between the pressure wedge and the visible surface of the tiles with its first surface facing the base, wherein the plate is configured to be inserted at least partially into the through-window between the visible surface of the tiles and the pressure wedge along the crossing direction,
• wherein the plate comprises at least one striker element configured to abut on the at least one rear portion of the separating element during the insertion of the plate into the through window along the crossing direction.