Patent ID: 8590219

Claim:
A raised access floor panel, comprising (a) a cross-braced sub-framework having four side rail members, and at least one cross-brace member, said cross-brace member connected at opposite ends thereof to the rail members so that the cross-brace member spans a central void area having a perimeter defined by the rail members; (b) a removable floor panel insert having a predetermined thickness and an upper working surface, said insert capable of supporting a downward load bearing force; and (c) a plate frame having a peripheral top plate surrounding a void centroid portion, wherein said peripheral top plate is connected at a lower surface thereof to an upper edge of said side rail members, and includes an inner margin, and outer margins, and an upper horizontal working surface, wherein said inner margin is formed with a web having a Z-section profile, said Z-section profile having a vertical face dimension which is substantially equal to the predetermined thickness of the insert so that the web is capable of receiving the insert in tight press fitment with the top plate and wherein the upper working surfaces of the insert and top plate are co-planar when supporting the load bearing force.