High Performance Bedding (HPB) is a 1/4-inch washed limestone aggregate known for its exceptional drainage and self-compacting properties. It achieves up to 97% compaction without heavy equipment, making installations faster and easier. This clean, angular stone serves as the ultimate base material for interlocking pavers, retaining walls, artificial turf, and pipe laying. It delivers a stable, frost-resistant foundation that prevents settling and keeps water flowing freely away from your structures.