US Patent 7090202 Fence and method of producing such

A fence panel that tracks a sloped terrain surface, in which a pair of spaced-apart rails each have a first longitudinal edge and an opposing second longitudinal edge on a side of the rail, and a plurality of pickets having first pickets and at least two second pickets disposed spaced apart on the side of the rails, with the first pickets attached by a fastener only between the picket and the first longitudinal edge of the respective rail and the second pickets attached by a fastener only between the picket and the second longitudinal edge of the respective rail, so that the rails do not roll away from the pickets when racking the fence panel by moving the opposing ends of the rails in vertically opposite directions to conform the slope of the fence panel to the terrain surface. A method of making a fence panel is disclosed.