Quantity estimate at 4 inches deep, with adjustable waste and local pricing.
The base volume is 240 cubic feet (8.89 cubic yards). Applying 10% extra gives 9.78 cubic yards to plan for.
Volume equals length × width × depth. Weight and bag counts are planning estimates because density, compaction, moisture, and product yield vary. Confirm the final order with your supplier.
Bag-planning reference: QUIKRETE concrete quantity calculator. Assumptions reviewed July 2026; local prices are entered by the user.