Calculate topsoil needed with the formula (L × W × D ÷ 27). Includes worked examples for raised beds, lawns, gardens, plus quick reference charts.
Topsoil is 45% minerals, 25% air, 25% water, and 5% organic matter, plus a thriving microbiome. Learn what makes quality topsoil and how to identify it.
Buy bulk topsoil from landscape supply yards, independent suppliers, farms, or municipal composting. Avoid bagged from big-box for orders over 5 bags.
27 standard 1-cubic-foot bags equal one cubic yard of topsoil. See bag-size conversions, coverage charts, and when bulk delivery beats bagged.
A cubic yard of topsoil costs $20-50 delivered for standard screened soil; $40-80 for premium blends. See pricing by region, type, and how to save on bulk.
A cubic yard of topsoil weighs 1,500-3,000 lbs depending on moisture and type. See exact weights for dry, moist, saturated, and by soil composition.