Lay and Compact Angular Rock Base

What happens here

After the trench is excavated to the precise depth, a layer of 3/4-inch clear angular rock is introduced as the base for the retaining wall. This angular rock is crucial as its sharp edges interlock when compacted, providing a highly stable and non-shifting foundation. The video explicitly warns against using pea rock, which is rounded and will not interlock, leading to an unstable wall. An alternative mentioned is Class 5 gravel, which also compacts well due to its mix of sizes. The angular rock base is then thoroughly compacted using a plate compactor to ensure maximum density and stability.

Goal: A layer of 3/4-inch clear angular rock is spread evenly into the excavated trench and then compacted thoroughly to create a stable, interlocking foundation for the retaining wall blocks, avoiding rounded pea rock.