The invention relates to a composite panel for raised floors comprising a core
bonded on its top to a tile of stony material and bonded on its bottom to a base
of metallic material, wherein the stony material tile has a bottom surface comprising
a peripheral portion and a central portion, and has a perimeter recess formed at
the bottom surface, wherein the core is bonded to the stony material tile through
the central portion of the bottom surface, and wherein the base of metallic material
consists of a metallic sheet having upturned edges to form a tray that is bonded
to the core, the end portions of the upturned edges being folded up to bond the
stony material tile at the peripheral portion of its bottom surface and in the
perimeter recess.