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Road base (also called crusher run or road aggregate) is compacted gravel used as the foundation for driveways, roads, and paths. A road base calculator determines how many tons of material are needed based on area and depth.

단계별 가이드

1. 1Volume = Length (ft) × Width (ft) × Depth (ft)
2. 2Convert to cubic yards: Volume / 27
3. 3Weight: road base weighs ~1.5–2.0 tons per cubic yard (depending on material)
4. 4Typical depth: 4–6 inches for residential driveways; 6–12 for heavy use

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