PURPOSE: To obtain a tilelike metallic panel enriched in stereoscopic effect by forming grooves on a base plate made of aluminum-based metal to compart the surface thereof into proper size and masking the parts of these grooves and applying the exposed surface with glaze, heating and roasting it.

CONSTITUTION: A base plate 1 has about 2 - 5mm thickness and is constituted of metal made of aluminum. Grooves 2,2... whose depth is about half the thickness of the base plate 1 are cut in a broken joint shape on the base plate 1. The base plate is immersed in an about 10% caustic soda aq. soln. and washed by water and dried. This base plate is introduced into an electric oven and baked. The surface thereof is applied with glaze for undercoating, heated and roasted to form an enamel substrate 3. The grooves 2,2... of the treated base plate 1 are masked by a tape and the exposed surface is applied with glaze for topcoating. At a point of time when glaze has made to a semidry state, the masking tape is peeled. The base plate is introduced into the electric oven, heated and roasted to form the enamel finished faces 4,4... and cooled by air. Thereby, a tilelike aluminum-based metallic panel enriched in stereoscopic effect is mass-produced at low cost.