Patent ID: 8136312

Claim:
A fencing floor laid on and overlying a fixed floor, comprising: extruded metal planks extending widthwise through the fencing floor, the planks having a top side and a bottom side and being connected side by side and retained in place with a metal border strip that engages the ends of the extruded planks, the planks and retaining border strips being put together in a linear series of sections of a common width and of selected length, with connections on ends of sections providing for connection to adjacent sections such that the sections cannot pull apart as laid on the fixed floor, elastomeric sheet material secured at the bottom of the metal planks of the fencing floor at least at all connections where sections are secured together, the elastomeric sheet material lying against the fixed floor, the top sides of the metal planks defining a flat surface comprising parallel groove portions with series of parallel grooves formed down into the surface and extending the length of the planks to provide for friction with a user's shoe soles, with non-grooved flat spaces between grooves and between series of the parallel grooves and extending the length of the metal planks to allow sliding advance of a user's shoe unhindered by any structure extending above the flat surface, and wherein the non-grooved flat spaces between grooves in the parallel groove portions and the non-grooved flat spaces between series of grooves are within a single plane defining said flat surface, and the fencing floor having an elongated length much greater than the width of the sections.