comes complete with all options built in in essence it is a one mat system illustrated in fig3 is an 34 l 34 shaped passageway having a first hallway 81 formed by walls 83 and 85 and an intersecting second hallway 82 formed by walls 84 and 86 in order to begin constructing runner mat the installer would center tile 50 in hallway 81 then he would note the distance between beveled edge 51 of tile 50 and wall 85 the installer would then move tile 50 toward wall 84 until beveled edge 52 was exactly the same distance from wall 84 once this is accomplished the installed has established the anchor tile for the rest of the project without any consideration for the placement of branch tiles for doorways or other intersecting passageways once tile 50 is in position the installer simply interlocks subsequent tiles such as tile 60 and tile 70 into place turning now to fig4 and 5 in fig4 there is illustrated an end view of tile 50 showing the interlocking system tile 50 is a rectangular tile constructed of a blend of rubber compounds and which is about 10 mm thick the edge shown in fig4 is the left hand beveled edge 52 of tile 50 shown in fig3 beveled edge 52 has a been beveled with an outside radius of 9 5 and it begins at top surface 92 and slopes downward toward strip 93 strip 93 is 1 5 mm thick and it is integrally formed with beveled edge 52.