When Proto II™ applied post tension engineering to fences nearly twenty years ago, the production fence market changed dramatically. And changed it for good. Now, Proto II™ has significantly changed the way retaining walls are built - with post tension masonry.

The Proto II™ Retaining Wall System is a patented design incorporating post tension methods of the fence system, standardized for retaining applications. Basic installation techniques and materials are the same as used in Proto II™ fences, so both systems are efficiently compatible.

A variety of standard engineering sets offers great off-the-shelf flexibility for the majority of needs. (See Specification for available Product Data Sheets.) Standard designs include

• Pure post-tension retaining wall.
• Pure post-tension retaining wall with Proto II™ fence on top.
• Hybrid - Proto II™ designed grouted retainer with post tension retainer above.
• Hybrid - Proto II™ designed grouted retainer and post tension retainer, with Proto II™ fence on top.
• Each with designs for retaining level or 2:1 slope backfill.
• Additional engineering is available for conditions not covered in the standard engineering sets.