However, when compared to alternative materials Roman Pisa® provides superior, longer lasting results with fewer installation and maintenance difficulties. 

The Roman Pisa® Retaining Wall System has been designed to meet the demands of home owners, installers, and architects from around the world.

Roman PisaI® can be used to create landscape structures like straight or curved walls, corners, steps, terraces or planters.  Structural walls can easily be constructed by incorporating layers of geosynthetic reinforcement into the wall's construction. 

All units are self sloping and self aligning using a patented interlocking system molded into each unit.  There is no need for mortar, pins or other connectors.

All units are solid, manufactured from concrete with a minimum strength of 5000 psi giving the units unparalleled strength and durability.

Roman Pisa® retaining wall should be constructed on a base of compacted crushed stone, places on stable soil.  Drainage behind the wall is extremely important and is normally created by placing a filter cloth wrapped, angular clear stone drain with drainage tile at the base, directly behind the wall. Successive courses of retaining wall units are stacked on top of each other.  The interlocking tongue and groove aligns the units, ensures the appropriate set-back between courses and ties the wall together.  The coping units is placed on top of the last course to finish the wall and must be secured with an adhesive.  Refer to the PISA® Design and Installation Guide for further information on specific procedures and details.