of an adjacent tile whereby a relatively wide band of adhesive can be effective in securing adjacent tiles together as shown in fig3 a room 30 has walls 31 and 32 and a subflooring 33 a plurality of larger floor tiles 310 and smaller tiles 410 and intermediate sized tiles 510 corresponding generally to the floor tile described in connection with fig1 and 2 are laid so that the tiles are held together predominantly by reason of the adhesion at the overhanging underfitting zone the overlapping lip of a tile is pressed against boundary portions of an adjacent tile the boundary portion is desirably coated with an adhesive to make such boundary portion a part of a path of adhesive in this manner each tile is adhered to a plurality of adjacent tiles at the periphery of the room where tile trimming is ordinarily required the bottommost layer of the tile can be adhered to the subflooring thus providing at least a partial anchoring of the entire floor system to subflooring while still permitting most of the floor tiles to retain a controlled amount of independent vertical resiliency of the type not readily achieved when each floor tile is adhered to the subflooring as shown in fig4 a plurality of sizes of floor tiles must be employed the length and width of a larger tile 310 are each essentially twice that of the smaller tile 410 so that the area of the attrition resistent top layer of the larger tile is four times that of the smaller tile it should be noted that the marginal or boundary portions of the smaller tile have the same width as the boundary portions of the larger.