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Top Course (5/8″ Minus, Top Course)
Applications & Uses
Top Course Aggregate - 5/8" Minus
Top Course aggregate in a 5/8" minus size range is a premium, well-graded crushed stone blend designed specifically for surface layers in road and driveway construction. The "minus" designation means the material includes both 5/8" stone and smaller particles, including fines, which help bind the aggregate together for a compact, stable finish.
This size and gradation make Top Course ideal for creating smooth, durable surfaces that resist rutting and shifting under traffic. The fines content allows for excellent compaction, reducing voids and providing a firm base for asphalt or pavers. Common applications include the final layer of gravel driveways, walkways, parking areas, and as a base for patios or roadways. While the high fines content improves stability and finish, it can reduce drainage compared to coarser materials, making it best suited for well-drained sites or as a top layer over a more open, free-draining base.
Frequently Asked Questions
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Key Characteristics of Top Course
Material Properties
Top Course is top course and classified as material, providing specific performance characteristics for construction applications.
Size Specifications
Standard Top Course is graded to 5/8" Minus specifications, ensuring consistent particle size distribution for reliable project outcomes.
Common Applications
Industry professionals typically specify Top Course for projects requiring dependable performance and specific drainage or structural properties.
Hello Gravel Availability
Hello Gravel may be able to source Top Course depending on your location and current inventory. We offer fast delivery, often within 2 business days when material is available.
Looking for This Material?
Hello Gravel may be able to provide Top Course in your area with delivery as soon as 2 business days.