How precise are the stated dimensions?
The dimensions are nominal and are the manufacturers intended size of the finished item, few are precisely as stated. Variations are usually within a narrow range, most are within 1/16 inch (1.6mm) tolerance. On the rare occasions that we find tiles that exceed 1/8 inch (3.2mm) deviation from the standard size this is noted in our description. Tiles are more often found undersize than oversize. Thickness also varies, the standard intended thickness is 3/8 inch (9.6mm) although some tiles were made to be as thin as 5/16 (8mm). Other tiles were made to be 1/2 inch thick, these are usually tiles with a flat surface and taking a cue from 19th century Minton tile catalogues we refer to these as ‘hearth quality’. Thickness also varies due to manufacturing conditions. Typical variations in thickness can easily be overcome in fixing to walls by varying the thickness of the applied adhesive. Dimensions are expressed in the form width x height*, this is the standard for technical usage as used b
