Road Base (Class D)

Road Base in Class D Size Range

Road base in a Class D size range is a versatile aggregate blend commonly used as a foundational layer in construction projects. This material typically consists of a mix of crushed stone, gravel, and fines, engineered to provide optimal compaction and load-bearing capacity. The Class D designation refers to a specific gradation standard, ensuring a balanced mix of particle sizes for stability and strength.

The Class D size range is particularly important for achieving a dense, well-compacted base that resists shifting and settling over time. This makes it ideal for use under roadways, driveways, parking lots, and patios, as well as for sub-base layers beneath concrete or asphalt surfaces. Its gradation allows for excellent load distribution and drainage, reducing the risk of surface cracking or water pooling. While it compacts very well, the presence of fines means it may generate some dust during installation, but this also helps lock the material in place for long-term durability.