Foot grilles

A foot grille comprising a multiplicity of elongated plank members, each plank member being of substantially uniform cross-section and including a substantially planar base portion having parallel side edges and an upper surface and at least one supporting leg portion depending from the base portion, the leg portion extending longitudinally substantially coextensively with the base portion and being adapted to support the base portion in spaced relation above a supporting surface, tread members attached to the upper surface of each plank member, and snap-fit couplings joining each adjacent pair of plank members along a coupled joint between adjacent side edges, each snap-fit coupling including on one of the adjacent plank members a first arm portion constituted by a part of the base portion along one side edge and a second arm portion joined to the base portion at a juncture spaced apart from said one side edge and extending downwardly and laterally from the juncture toward the other of the adjacent plank members, the first and second arm portions being resiliently deformable relative to each other, and on the other of the plank members a third arm portion that is received between the first and second arm portions of said one plank member, the first and third arm portions having a first tongue and groove pair in locking engagement at a first engagement point, and the second and third arm portions having a second tongue and groove pair in locking engagement at a second engagement point located generally below the first engagement point and closely spaced apart from the first engagement point, each of the first and second engagement points being spaced apart from the juncture by a distance substantially greater than the spacing between the first and second engagement points and a rigid portion of the third arm bridging the space between the first and second engagement points.