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Limestone 1"–2", also known as 1x2 limestone, clean limestone, coarse drainage rock, or clean base stone, is a durable, angular aggregate typically ranging from approximately 1 inch to 2 inches. Its larger stone size provides dependable structural support while maintaining the open space needed for efficient water movement.
Because the material contains little to no stone dust or fines, water can flow freely through the aggregate instead of becoming trapped within the stone layer. The fractured edges help the limestone interlock and remain stable under pressure, making it a strong choice for drainage systems, structural backfill, septic installations, and site stabilization.
Limestone 1"–2" is widely used in projects that require both load-bearing strength and consistent drainage. It performs especially well around foundations, retaining walls, pipes, and underground systems where long-term stability and water management are essential. Exact gradation may vary by quarry and regional specification.
Common Applications of Limestone 1"–2"
- Pipe bedding and utility trench support
- Leach fields and septic drain fields
- Foundation and perimeter drainage systems
- Retaining wall backfill
- French drains and drainage trenches
- Structural fill in load-bearing areas
- Stabilization over soft or wet ground
- Drainage beneath slabs and hardscape areas
