Measure the length, width, and thickness of the area in feet
Multiply length × width × thickness to get cubic feet
Divide cubic feet by 27 to get cubic yards
Round up to the next quarter yard or half yard for ordering
Add extra for waste, spills, and uneven ground
Use this formula: cubic yards = (length × width × thickness) ÷ 27
Convert inches to feet before calculating thickness
For multiple sections, calculate each section separately and add them together