Clean Gravel is an angular, crushed, grey colored limestone gravel. Clean gravel is available in both 3/4" (2B) and 3/8" (1B) sizes. Clean gravel is well suited for drainage applications but does not compact well.
2B Clean Gravel is typically the recommended base under a concrete slab or a wooden shed because it allows water to drain away, preventing issues with frost heave and rot respectively.
2B Clean Gravel, lined with a geotextile, is also used when building french drains. Another use is to backfill behind retaining walls which allows water to drain away from the wall and reduce water pressure behind the wall.
To calculate the quantity you need for your application use our calculator.