This Property Closed to Public No Entry Without Permission Sign. 12x18 Metal. No Public Access Signs

For success, we'd suggest cutting a piece of plywood the same dimensions as the sign. Affix the cut to size plywood to a sturdy post. Fill around the base of the post with dry cement (available at most home improvement stores), don't mix cement with water, just pack the dry cement, straight from the bag, firmly into and around the post in the hole, as the moisture in the ground will firm up the cement into concrete. Finally use some small screws to attach the sign to the cut out piece of plywood. In this method, this sign will last year's and years.