of the front face and behind the front face while top surfaces 14 project from the upper edges of the side walls and bottom surfaces 16 project from the lower edges of the side walls the collar is preferably attached to the portion of a fence post closest to the ground when the collar is attached to the fence post by placing the front face 10 10 against the surface of a fence post 19 opposite the fenceline 12 side walls 32 42 project from the edges of the front face away from the fence post and toward the fenceline the front face need not directly contact the surface of the fence post spacers may be used if desired to fill any space between the front face and the surface of the fence post the outer ends 13 of the side walls substantially abut or extend adjacent to the fenceline when the fence post trim collar is attached to a fence post as seen from fig3 and 4 in a horizontal cross section of the collar the front face 10 the side walls 12 and the existing fenceline 19 form the perimeter of a generally trapezoidal shape the side walls 12 make up the two nonparallel sides of the.