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Rectified and Non-rectified Tiles


Rectification is a process that affects the edges of a tile. A mechanical process straightens the tile edges and ensures they are perfectly squared. So all the tiles are exactly the same size and can therefore be laid with a minimum grout joint of 2 mm. 

Non-rectified tiles, on the other hand, are tiles with natural, uneven edges that require a wider grout joint.

A non-rectified tile has a plain, square edge whereas a rectified tile has a very small bevel around the outside.

A rectified tile is a tile whose sides have been mechanically finished and precisely cut for uniformity. It’s easier to align with other tiles of its kind, so less grout is applied between them when they’re laid down.



The resulting look is much more polished and professional.

An unrectified tile is the exact opposite. Its sides are not mechanically finished after they have been fired, When non-rectified tiles are laid on the floor, gaps between them are more obvious. More grout is needed to fill those gaps and to align the tiles. Unfortunately, grout distracts from the overall effect of a flooring, and also discolors over time.

Rectified tiles are more expensive than unrectified tiles, but they’re a better choice if your priority is aesthetics. Also, you have to consider labor. Non-rectified tiles take longer to lay, so if you’re paying your tiler by the hour, you may end up with the same costs as you would have with rectified tiles.

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