#53 limestone, also known as #53 stone, 1 1/2-inch-minus limestone, dense-graded aggregate, or compactable limestone base, is a well-graded blend of crushed limestone, smaller stone, stone dust, and fines. The material typically ranges from approximately 1 1/2 inches down to fine limestone particles, allowing it to compact into a dense, strong, and level foundation. Exact gradation may vary by quarry and regional specification.
The larger aggregate provides load-bearing strength, while the smaller particles and fines fill the spaces between the stone and help the material lock together under pressure. When properly placed, graded, moistened, and mechanically compacted, #53 limestone creates a durable base that resists shifting, rutting, and settlement under vehicle traffic and structural loads.
#53 limestone is one of the most widely used crushed stone base materials for residential, commercial, and roadway construction. Its combination of coarse stone and compactable fines makes it a dependable choice beneath driveways, parking areas, asphalt, concrete, and other finished surfaces that require long-term support and consistent compaction.
Common Applications of #53 Limestone
- Driveway and access-road base construction
- Road base and sub-base preparation
- Parking lot and equipment-area installation
- Base beneath asphalt or concrete pavement
- Construction entrances and staging areas
- Building pad and slab preparation
- Site grading and stabilization
- Heavy-traffic gravel areas










