width 330 can be extended as seen in fig3 by extending the sleeve interior minimum cross sectional width 330 the fence post sleeve 300 can be wrapped around the fence instead of having to be slid on in another embodiment there may be neutral distance between the longitudinal slit left edge 382 and the longitudinal slit right edge 383 as seen in fig4 in this embodiment the fence post sleeve 300 is held in place by the weight of the fence post sleeve 300 and flexible barrier fencing 600 in yet another embodiment there may be a negative distance between the longitudinal slit left edge 382 and the longitudinal slit right edge 383 causing the longitudinal slit left edge 382 and longitudinal slit right edge 383 to overlap as seen in fig4 in this embodiment fence post sleeve interior minimum cross sectional width 330 is slightly smaller than the post maximum cross sectional width 160 as a result the post sleeve 300 has a is held in place by fiction due to a close compression fit between the fence post sleeve 300 and the fence post 100 in another configuration the fence post sleeve 300 may have a larger fence post sleeve interior minimum cross sectional width 330 at the fence post sleeve proximal end 306 than at the fence post sleeve distal end 305 creating a greater compression force at the post bottom end 140 than at the post top end 120 by tapering the fence post sleeve 300 many commercial fence posts have post surface gripping extensions 195 formed on the post exterior surface 190 that serve as point s.