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A cubic yard is a unit of volume equal to 27 cubic feet (3 ft × 3 ft × 3 ft). It is the standard ordering unit for bulk materials in the US: concrete, mulch, topsoil, gravel, and sand are all typically sold by the cubic yard.

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1. 11 cubic yard = 27 cubic feet = 764.555 liters
2. 2Volume needed: (Length ft × Width ft × Depth ft) / 27
3. 3Concrete: 1 yd³ weighs about 4,050 lbs (1.8 metric tons)
4. 4Mulch: 1 yd³ covers 100 sq ft at 3 inches deep

解いた例