INSTALLATION STEPS
Determine wall location and dig base trench after removal of surface vegetation. Minimum trench dimensions should be 16" wide x 8" deep. This depth allows for one buried course of Potenzo Stone™ units plus 4" of leveling pad material. Use granular fill, road base or smaller dimension crushed stone (3/8" +/-) for the leveling pad. Compact base soil and leveling pad with hand or power equipment to a dense, non-compressive state.

Do not use pea gravel for the leveling pad.
Place and level the first course with the unit channel facing downward. Level each unit as you place it, making sure that they touch end to end.Always start the base course at the lowest elevation of the wall. Complete base course before proceeding. If grade elevation rises over length of wall, step up the leveling pad at locations where more than (2) base course units would be buried. Repeat (STEP 1) at area of raised leveling pad.
Place alignment pins in holes provided in the Potenzo Stone® units. Each unit has one or two sets of holes (three holes to a set). Place only one pin per set of holes. Selecting the center hole position will create a vertical wall. If either of the outboard holes (right or left of center) are selected, a setback will be achieved. Note: Each unit has a minimum of two textured faces which can be used as the outer face of the wall. Pin placement per unit should be determined for the correct setback or vertical alignment of the wall.
After stacking each course, backfill behind the wall with granular (free-draining) fill. Compact this materials to a dense, non-compressing state.

Do not use pea gravel for drainage fill or backfill.
Starting at a wall end or straight wall area, begin stacking the second course of the wall. Place the channel from the upper unit over the pins in the course below, spanning the joint between the two lower units. Crossing over the joint by an upper unit should be followed as a general “rule of thumb”. Select appropriate unit length to maximize wall’s random appearance, connect to pins, and avoid stacking of joints.

Note: Repeat Steps 3 through 5 until desired wall height is achieved.
With top row units clean and dry, apply construction adhesive (i.e Keystone Kapseal adhesive) using a caulking gun. Limit application of adhesive to avoid squeezing out on the wall face. Some cap units may require field adjustment (cutting or breaking) to achieve a correct fit. Using appropriate safety equipment (goggles, gloves, etc.), cut units with a masonry saw or wheel grinder for a smooth edge finish, or crack units using a “guillotine style”paver break to achieve a split textured surface (i.e. 90° corners or columns).