Abstract: Improvements in elevated floor supports, said support (1) comprising, in its first embodiment option (1a), by an inverted ‘U’ section (2), upper and longitudinally fitted with a bar (3), which delimits two horizontal support surfaces (4) for the plates (P) of the false floor, and where there are provided means for fixing (5) the support (1) directly into the sub floor, being that in the vertical walls (6) of the support (1) there are provided openings (7) which delimit ‘channels’ for the passage of piping, cables and wiring (F) of any kind; in a second embodiment option (1b), said support (1) is comprised of a section (8) in an inverted ‘T’, fitted below with means (9) of support, sustentation and anchorage, as well as fitted with extension sets (10) for increasing and adjusting of its height.