A Straight Fence
means the top of the fence is kept even despite the gaps that may develop under the fence as the grade of the land changes.With a Stepped Fence
each panel is level, but is installed higher or lower in an effort to deal with changes in grade. This helps to reduce gaps that appear under the fence.With a Sloped Fence
the panels are angled to generally follow the grade. This helps to reduce gaps under the fence. Note that for a Sloped fence the top of the fence changes at the same angle as the bottom.