A kit for a temporary barrier includes at least two vertical post members, a contiguous wire and a tensioning device. The at least two vertical post members define respective top and bottom ends thereof and are positioned on an underlying surface in a spaced apart relationship. The wire runs between the two vertical post members at least towards their respective top ends and at least towards their respective bottom ends thereby providing a top wire portion and a bottom wire portion extending between the two vertical post members. The two vertical post members have respective arcuate bodies along their respective length for arcuately receiving the wire. The tensioning device is mounted to one of the two vertical post members near one of the top or bottom ends thereof and provides tension to the wire. A barrier is provided by the previous kit. A method for building a temporary kit includes mounting vertical posts on an underlying surface in a spaced apart relationship and running a wire between them.