To provide a tile material capable of displaying an originally designed function in the same manner as the tile material is executed in a flat foundation surface even in the case of execution to a foundation surface having irregularities.

Ribs 36a-36d extending in the flow direction are formed to the rear of the tile material 31. The lower ends of each rib 36a-36d are formed in a plane shape, and the lower end surfaces of these ribs 36a-36d are aligned in a single surface 40 tying the apices 41 of a foundation surface 39 having irregularities. Thus, the tile material 31 is supported to the foundation surface 39 having irregularities in a plane shape, and a function original to the tile material is displayed as execution onto a flat foundation surface.