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Calculate how many cubic yards of material you need for concrete, gravel, mulch, topsoil, and other bulk construction materials.
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| Project | Typical Depth | Coverage per Cubic Yard |
|---|---|---|
| Driveway Gravel | 4 inches | 81 sq ft |
| Landscape Mulch | 2-3 inches | 100-160 sq ft |
| Concrete Slab | 4 inches | 81 sq ft |
| Garden Topsoil | 2 inches | 162 sq ft |
| Raised Bed Fill | 12 inches | 27 sq ft |
There are 27 cubic feet in 1 cubic yard (3 feet × 3 feet × 3 feet = 27 cubic feet).
A cubic yard of concrete weighs approximately 4,000 pounds (2 tons). This can vary slightly based on the mix design.
A cubic yard equals about 13.5 bags of mulch (2 cubic feet bags) or 27 bags of 1 cubic foot bags.
Multiply length (ft) × width (ft) × thickness (ft), then divide by 27. For a 10×10 slab that is 4 inches thick: (10 × 10 × 0.333) / 27 = 1.23 cubic yards.
Yes, add 5-10% extra for compaction, spillage, and uneven surfaces. For concrete, order slightly more as shortages are costly.
A standard wheelbarrow holds about 3 cubic feet, so you would need about 9 wheelbarrow loads for 1 cubic yard.