09/16/2026
Just finished this Unilock Beacon Hill Flagstone patio and Concord XL retaining wall. We had to remove most of the existing concrete slabs except what was under the deck. The deck is sitting on the remaining concrete with no footings. Expected the concrete slabs to be 4"-6" thick. NOPE, ended up being 6"- 2' thick. Removed just over 28 tons of concrete!