Providing and laying Rectified Porcelain floor tiles 400x400mm or more (thickness to be specified by the manufacturer) of premium quality conforming to IS:15622 of approved make in all colours laid on 20mm thick bed of Cement Mortar 1:4 (1 Cement : 4 Fine sand) for new flooring complete Rectified tiles have finished edges allowing them to be placed closer together for a narrower grout joint as opposed to other tiles and are more expensive. Unlike typical factory-edged tile, rectified tile is cut to size after the firing process. This process creates a precise, 90 degree angle edge and, as a result, can be laid with a tighter grout joint than un rectified tile. It gives a smooth, sophisticated and continuous look to the floor. Using a rectified tile allows you to place the tiles much closer together using tighter joint spacing. This makes the grout less visible as there is actually less grout used. When a wide space is used between tiles, the grout becomes a distinct part of the design and if the grout does not blend well with the tiles it can create a less than professional looking finish. In addition, the grout can easily become soiled and discoloured over time and will detract from the look of the tile itself.