Retaining wall and fence question

Ok this may be a dumb question but I can’t find the answer online. If I have a 2 foot retaining wall and dig 2-3 feet down to set fence… Ok this may be a dumb question but I can’t find the answer online. If I have a 2 foot retaining wall and dig 2-3 feet down to set fence…Read MoreGreenBuildingAdvisor