CONSTRUCTION DETAILS
Maximum wall height should not exceed 24". Contact your local Keystone
representative for design options to support slopes of top of wall loads
when wall exceeds 24" in height.

Use this guide for estimating the number
of Keystone Potenzo Stone units required.

(This estimate is based on equal distribution of each size unit.)
*Notes:
  • Maximum wall height not to exceed 24".The maximum height is based on a level grade, total granular soil,wall built in setback position, and no surcharge. Contact your local Keystone representative for design options on wall heights exceeding 24" or supporting surcharges and backslope.
  • Change in color on chart denotes maximum wall height for vertical and setback positions.
  • Keystone recommends cap units as the top course and/or caps of freestanding
    walls secured with Keystone KapSeal™ adhesive.
Always start building the wall at the lowest elevation of the site where the wall is to be constructed. Build step-ups in the leveling pad to match concrete unit thickness. If using non-reinforced concrete for the leveling pad option, it is critical that the step-ups match the Keystone Potenzo Stone unit thickness! Avoid stack bonding of unit joints (vertical joint line between adjoining units) for more than two courses vertically.
To create a more random appearance, the large Potenzo Stone unit can be split at the second score line to create an 8" x 8" cut piece for use as a vertical “jumper unit”.