Manufacture of tiles

An assembly of ceramic tiles for interior walls and ceilings made up of a plurality of tiles arranged in rows, each and every tile of said assembly selectively being either a field tile or a border tile, each tile comprising:

• a four sided glazed face and edges;
• and projecting glazed spacing lugs on each edge of the tile and extending upwards substantially one half the thickness of the tile from the base and having a width of approximately 0.05", adjacent tiles employed as field tiles being assembled with the glazed lugs on one tile abutting the glazed lugs on the adjacent tiles and long glazed lugs extending substantially the whole length of at least two sides of each tile whereby the same glazed edge tiles may be employed as field or border tiles, said tiles being employed as field tiles being arrangeable in any conceivable random fashion with respect to abutment of adjacent edges thereof, the glazed lugs providing compressible portions which will crush to take up initial movement on any settling movement of the building so that the tiles do not leave the wall.