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Rectification & calibration

Rectification or calibration: differences and peculiarities

When buying tiles, you have very different options for deciding on the preferred edge processing. Here you can find out the differences and find out which wall and floor tiles are best for you. As a rule, tiles with a press edge, i.e. calibrated, are selected. Tiles with rectification are ideal if the installation is to be carried out without or with very narrow joints. Whether calibration or rectification of the edges is chosen depends largely on the laying and the desired joint width.

Tiles with pressed edge: The calibration is standard

Die Most tiles have calibrated edges, which are usually also referred to as pressed edges. The term pressed edge comes from the fact that the tiles are pressed into shape and manufactured with a slightly angled edge. Calibrated tiles are dimensionally identical because they are sorted according to their caliber immediately after manufacture. Nevertheless, they are more suitable for processing with larger joints, as their edges are not as sharp as with rectified tiles. Conventional wall and floor tiles are manufactured in calibration and are available in the dimensions 20x20, 30x30 or 40x40cm. In order to compensate for the bevels at the edges, it is best to use joint spacers and evenly fill the spaces between the tiles with grout. Tiles with a calibration are not suitable for laying edge to edge or very narrow joints.

Rectification: Sharp edges at a 90 ° angle

Should the tiles be Tiles with rectification are available on the wall or on the floor next to each other or with a marginal distance of less than 2mm. Rectified tiles have a 90 ° sharp edge, which enables them to be directly lined up. The edges were sanded after the tiles were made and brought to the correct 90 ° angle. Rectification is particularly popular with porcelain stoneware, as tile floors are preferably designed with the smallest or no joints. Because of the extra work involved in subsequent sanding, tiles with rectification are more expensive than designs with pressed edges. Nevertheless, they offer some advantages, especially if the floor or wall is to be designed with an even tile pattern without any gaps.

Normal or narrow joint: Edge processing is based on the desired tile image

You can choose rectified tiles or tiles manufactured with calibration in different designs and from different materials. The classics among wall and floor tiles are provided with a pressed edge, which must be laid with joints. For narrow joints or the direct lining up of tiles, you should choose rectification, as these tiles have completely even and sharp edges. The joints have a decisive influence on the appearance of the entire tile surface. It is therefore advisable to think in advance whether you want a floor with joints or an even floor with no larger spacing between the tiles. With natural stone and porcelain stoneware, very narrow joints embellish the tile image.