A tile-securing system having a polymeric one-piece bracket having a first flange, a second flange, and a central raised-wall portion, the first flange and the second flange opposing each other and being in the same plane, the central raised-wall portion being orthogonal to both the first flange and the second flange; a slot opening located on an exterior edge of the raised-wall portion; the slot opening having a first width and a first length, wherein the first width is less than the first length, and the slot opening configured to receive a wedge that upon insertion into the slot opening expands the first width to a greater second width.