The is what we call privacy fences where the pickets actually overlay on each other, eliminating any gaps that commonly occur between privacy fence pickets. This is just one of many different design possibilities.
The construction of this section is made up of 1 x 8 pickets overlaid with 1 x 6 pickets. The exterior top and bottom face is finished with a horizontal 1 x 6 board. The top of section is finished off with a 2 x 6 board. (3) - 2 x 4 backrails set in-line with post attaching with galvanized bracket support the pickets. Posts are 6 x 6 with 6 ball tops set on a 2 x 8 plate.