Rakable or Stepped  Fence

 
Ameristar Montage Specifications
Montage® ATF™ Welded Steel Fence

Raked Panel
A rackable panel is one that can adjust to the ground slope so that the panels are parallel to the round and the pickets are straight up, keeping a uniform look.
Stair Stepped Panels
Stepped method is used when installing a fence on a sloped terrain.  The post fence rails remain horizontal and posts are extended to accomodate the grade variance.  Each section is attached to the post to accomodate the land slope. Depending on how much grade, longer posts may be needed.