A system for the levelling of floor tiles, comprising: a separation post incorporating: a base component, a separator component and a threaded shaft; and a threaded cap with: a hollow dome-shaped body, a lower cylindrical component, an upper hub with a central female thread for the assembly thereof on said threaded shaft, and a number of lateral openings separated by a plurality of ribs with a substantially U-shaped structural cross-section, and comprising: —a smooth external web, with no protruding wings or extensions, of increasing width in a downward direction toward a first lateral end with a curved concave profile, —a first wing and a second wing that extend toward the interior of the cap from lateral ends of the web of the ribs and forming ergonomical surfaces for exerting pressure on the cap in the direction of tightening and loosening of the cap.

A device for stabilizing a sheet material to a stud member includes two side members that sandwich the stud member and a back member joining the two side members together. One or more protrusions may extend inward from one or both of the side members so that the device is frictionally fit and secured to the stud member. A shelf extends away and outward from the back member so that the sheet material can be placed on the shelf before the sheet member is fastened to the stud member. The device can include an angled portion at the bottom of the back member so that a hammer can apply a force to the angled portion to cause the device to move away from the stud member for removal.

A method and assembly for laying and leveling adjacent tiles. The assembly includes a base member having a bottom plate and a cam tool. The cam tool is pivotally combined with the base member so that the cam tool rotates relative to the base member about an axis of rotation. The cam tool has a handle combined with a cam member. The cam member has a tile engaging surface around its outer periphery with a first portion that is a first distance from the axis of rotation and a second portion that is a second distance from the axis of rotation. Rotation of the cam tool around the axis of rotation causes the distance between the tile engaging surface and the bottom plate to change. One or more tiles is adapted to be placed between the tile engaging surface of the cam member and the bottom plate of the base member. The tiles are compressed between the tile engaging surface and the bottom plate as the cam tool is rotated to a desired position.

A device for leveling and aligning tiles and method for leveling and aligning tiles are disclosed. In one embodiment, the leveling device includes a body and two spaced and parallel strip members extending transversely from the body. Each of the spaced and parallel strip members extend to the front and rear of the body. Two opposing lateral open windows are formed in the body. A breakaway section is defined along the body. A wedge device is provided for penetrating one or more of the two opposing lateral open windows and exerting a force on the tiles for leveling them relative to each other.

A device for levelling tiles includes a traction member having a base which can be inserted below two or more of the tiles which are adjacent at mutual edges, and a C-shaped element extending from the base, the free ends of its wings being associated with the base. The device further includes a wedge having a surface with a serrated profile for interaction with the traction member at an edge of the core of the C-shaped element. The wedge is insertable inside the C-shaped element of the traction member between the wings thereof.

A levelling spacer device for the application of slabs for covering surfaces, including a base having a lower surface and an opposite upper surface, a separator element extending upwardly from the upper surface of the base, a threaded stem which rises up from the separator element, a pressing element able to screw into the threaded stem, and a corner spacer that rises up from the upper surface of the base. The separator element includes a main zone having side faces parallel to one another and spaced apart defining a first thickness of the main zone. The corner spacer includes two side edges parallel to one another and square-angled with respect to the side faces. The separator element includes a central zone proximal to the base having a non-zero second thickness smaller than the first thickness. The corner spacer joins the central zone and has a longitudinal axis perpendicular to the side faces.

A fastener unit and related method for securing a board to a support is provided. The fastener unit includes a spacer block, a grip element extending from the spacer block and configured to fit in and engage a groove of the board, and one or more resilient compression elements joined with the spacer block. The resilient compression elements can be vertically compressible so at least a portion of it can move from an open mode to a compression mode and fit within, then forcibly expand within, the groove, thereby securing the spacer block in a position adjacent the groove to establish a gap between the board and another board. Related methods of use also are provided.

A leveling shim (1) for building is described, comprising a plastic plate (2), coupling means and through holes. The coupling means comprise flexible coupling means (5) able to be housed in at least one cavity (6) of the plate (2), and at least one coupling through hole (4).

A device for stabilizing a sheet material to a stud member includes two side members that sandwich the stud member and a back member joining the two side members together. One or more protrusions may extend inward from one or both of the side members so that the device is frictionally fit and secured to the stud member. A shelf extends away and outward from the back member so that the sheet material can be placed on the shelf before the sheet member is fastened to the stud member. The device can include an angled portion at the bottom of the back member so that a hammer can apply a force to the angled portion to cause the device to move away from the stud member for removal.

A supporting device (10) for laying tiles comprising: a base (20); a separator element (30) projecting from the base; and a pusher element (50) adapted to cooperate with the separator element (30), wherein the base (20) comprises two flaps (23) arranged at opposite sides with respect to the separator element (30), wherein the flaps (23) are tilted between each other and form a dihedral angle lower than the straight angle opposite to the separator element (30).