With post tension engineering, a Proto II™ fence wall requires less material and, often, smaller cmu widths than a conventional wall. Four inch Proto II™ walls can be used in lieu of 6-inch conventional walls, and 6-inch Proto II™ in lieu of 8-inch conventional. Thus, it allows the choice of durable cmu walls in lieu of non-durable, budget driven wood fencing.

The basic Proto II™ Fence Wall consists of:

• High strength steel tension rods (1) "L" hooked under a single rebar (2) in the footing; when tension forces are applied, this assembly compresses the cmu wall and footing, unifying the structure. (Shown is the Dip Footing which uses a setting pad and dip; four different footing profiles accommodate a variety of site conditions.)
• Plate washer (3). ¼" steel in four inch to 8 inch nominal widths to span the cmu face shells and center or end web; transfers compression to the courses below.
• Direct tension indicator (DTI) (4); tabs on the DTI collapse when correct forces are achieved.
• Tensioning nut (5).
• Joint reinforcement (6) at specified locations; also aids in transferring forces laterally through the wall.