Types of ceramic tiles : stoneware floor tile, porcelain stoneware, catalonian floor tile, rustic stoneware, earthenware

Posted on August 29, 2010

Ceramic tiles are thin slabs that are generally used to surface floors and walls.

They are made from clay compositions and other inorganic raw materials, that are ground and/or slipped, moulded and subsequently dried and fired at adequate temperatures to make them acquire the required properties in a stable way.

Ceramic tiles may be unglazed (UGL) or glazed (GL). Unglazed tiles undergo a single firing; glazed tiles have a vitreous coat applied between the first and second firing (double firing) or before the only firing (single firing).

The following names and descriptions take into account the objective criteria that may be used, such as technical information, duty or other, as well as the most commonly used commercial terms. However, no standardised nor generally accepted definitions and denominations are available for the different types of ceramic tiles, for which reason it may be necessary to elaborate when using the names suggested, especially in the cases where it is so indicated.

Type of tile
Moulding Standard
measurement (cm)
Glaze Group standard
ISO 13006
UNE EN 14411
1.Tile Porous Pressed 10 x 10 to
45 x 60
<10 Yes BIII
2.Stoneware floor tile Non- porous Pressed 10 x 10 to
60 x 60
>8 Yes BIb-BIIa
3.Porcelain stoneware Non- porous Pressed 15 x 15 to
60 x 60
>8 No BIa
4.Catalonian floor tile Porous Extruded 13 x 13 to
24 x 40
5.Rustic stoneware Non- porous Extruded 11.5 x 11.5 to
37 x 37
>10 No-Yes AI-AIIa
6.Earthenware Porous Extruded Wide variety >10 No AIIb2ª-AIII

The values given in the table are the most common or generally accepted for each product, hence they are only estimates. To identify what group of the standard they actually belong to, you shall refer to section ‘Standard classification’.

Original: www.spaintiles.info

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