An installation tool for installing floor tiles includes a base and an arm. The base and the arm each have opposing top and bottom surfaces and opposing sides. The sides of the base extend substantially perpendicular to the sides of the arm. At least one spacer is provided on at least one of the sides of the base and at least one spacer is provided on at least one of the sides of the arm. Each of the spacers has an alignment member extending substantially perpendicular to the top and bottom surfaces of the base and the arm. Each of the alignment members has a thickness equal to a desired spacing between adjacent floor tiles.