Abstract: A floor panel suitable for use in access floors or other applications comprises a surface plate attached to a base plate. The base plate integrally comprises a perimeter ridge, four arcuate ridges and two diagonal ridges. The ridges are arranged so as to define four recessed areas or pockets which are located, respectively, in the corner areas of the base plate. The ridges further define four intermediate pockets in the areas between adjacent corner pockets. A reinforcing rib may be disposed within one or more of the intermediate pockets for increased strength.