Archives: FAQs

In most residential applications, no. Keystone retaining walls are designed to be installed on a compacted aggregate base rather than a poured…

A six-inch compacted ¾” angular crushed stone base is recommended. A properly prepared foundation is critical to prevent settling and ensure…

Yes, multiple Keystone wall systems we manufacture are designed to create both inside and outside curves with minimal cutting, making it ideal for…

A Keystone Compac III block typically weighs approximately 75 pounds, making it durable enough for structural walls while remaining manageable for…

The number of blocks depends on the wall’s length and height. Measure the total square footage of the wall face, and we’ll help calculate the…

Many homeowners successfully install small Keystone retaining walls for gardens, landscaping, and raised patios. Larger retaining walls should be…

Yes. Proper drainage is one of the most important parts of a successful retaining wall. Crushed stone backfill, drainage pipe when needed, and proper…

Most local building codes require engineering for retaining walls over a certain height, often around 4 feet. However, the allowable height depends…