A covering plate (1) of a surface comprising a bearing structure (14), comprising: a finishing layer (2) having a first visible surface (3) and a second surface (4), which is opposite to said first visible surface (3); a supporting sheet (5) of the finishing layer (2), said supporting sheet (5) comprising a first side (6) and a second side (7), which is opposite to the first side (6), the supporting sheet (5) comprising at least one perimeter edge (8) adapted to define a housing for said finishing layer (2) together with the first side (6); a plurality of fastening elements (11) of the covering plate (1), each fastening element (11) having a first end fastened to the supporting sheet (5) and a second free end, which is opposite to said first end, extending from the second side (7) of the supporting sheet (5); an adhesive material layer (16) arranged on the first side (6) of the supporting sheet (5), the finishing layer (16) being housed at least partially inside the housing so that the second surface (4) of t
