Oversize Sump Rock

Sump rock is traditionally installed around buried concrete enclosures to provide maximum drainage efficiency. By acting as a primary filter, these oversized stones prevent dirt, silt, and debris from clogging drainage systems, ensuring optimal flow and long-term protection for sump pumps.

Ranging in size from 3″ to 12″, these smooth river rocks are the larger counterparts to our standard round rock options. Beyond their heavy-duty utility, they have become a favorite in modern landscape design – perfect for accent borders, ground cover, and creating natural-looking dry creek beds.