This kind of vinyl floor is used for the tennis court. According to the Tennis Competition Regulation issued by Interantional Tennis Federation and National Sport Committee, the covering area of each standard tennis court shall not smaller than 33.6m(N-S length)×18.3m(E-W width). Such dimension can also be used for a standard tennis court surrounded by partition nets or an indoor court surrounded by partition walls. In such an area, the standard size for double player shall be 23.77m(L)×10.98m(W). A clear area with at least 6.40m in width shall be set behind each baseline and it is 3.66m in width for that outside sidelines. Two columns shall be erected with the distance of 12.80m measured from centers of both. Top of the column shall be 0.914m above the court floor.