#5 granite, also known as #5 stone, clean crushed granite, coarse granite aggregate, or granite drainage stone, is a durable, angular aggregate commonly used for drainage, structural support, concrete production, and heavy-duty construction. It typically consists of granite pieces ranging from approximately 1 inch to 1 1/2 inches, although exact gradation may vary by quarry and regional specification.
Because #5 granite contains little to no stone dust or fines, open spaces remain between the particles, allowing water to flow freely through the aggregate. Its rough, fractured edges help the stone interlock and remain stable under traffic, heavy loads, runoff, and changing ground conditions.
#5 granite is popular for projects that require a larger and stronger clean stone than #57 granite. Its coarse size provides greater load distribution and drainage capacity, while granite’s natural hardness and abrasion resistance support dependable long-term performance. It can be used as a structural or drainage layer and topped with smaller aggregate when a smoother finished surface is preferred.
Common Applications of #5 Granite
- Driveway and access-road reinforcement
- French drains and high-capacity drainage systems
- Concrete and asphalt aggregate mixes
- Pipe bedding and utility trench support
- Foundation and retaining wall backfill
- Construction entrances and equipment access areas
- Stabilization over soft or wet ground
- Residential and commercial construction projects