In a cladding tile comprising a backing member (10) and a cladding material (40) which is releasably attachable to the upper surface of the backing member, the underside of the cladding material (40) includes parallel grooves which are re-entrant in cross-sectional shape and the backing member (10) carries complementary shaped anchor formations (12) which project in parallel rows upwardly from its upper surface to be slidably engageable in the cladding material grooves . Preferably the re-entrant grooves in the cladding material and the base member anchor formations are dovetailed in cross-sectional shape.
