Abstract: An access floor system includes a plurality of floor panels, each panel having a pan and a cooperating top plate. The top plate is folded over a peripheral flange of the pan to define a hemmed edge. A trim piece is configured to snap over the hemmed edge of the floor panel. A support pedestal assembly includes a support plate configured to support the floor panels at their corners. Generally T-shaped stringers are joined to the support plates in a grid-like pattern. The stringers are rigidly connected to the plates or snap-on to lock tabs defined by the plates.

Abstract: An access floor panel construction employing peripheral trim channel elements joined together at the panel corners and fixed at their mid-lengths to the edges of a main body. As disclosed, the trim elements are of an organic thermoplastic material and are ultrasonically welded together at their ends and thermoplastically deformed into receiving portions of the main body edges. An assembly fixture holds the trim elements in position for final assembly in a manner which reduces the size of any gaps which might occur as a result of dimensional tolerances in the panel components.