How to Estimate Mulch for Landscaping - Bulk vs. Bagged
Mulch is sold by the cubic yard in bulk or by the bag at retail, and the conversion between the two catches people every time. One cubic yard is 27 cubic feet - which is roughly 13.5 bags of 2 cubic feet, or 9 bags of 3 cubic feet. If you are pricing a job at the hardware store versus calling a landscape supplier, you need to know that number before you commit. The depth you choose changes the total volume dramatically: a 2-inch refresh over 500 square feet needs about 3.1 cubic yards; the same area at 4 inches for a new bed installation needs 6.2 cubic yards - twice as much material, twice the delivery cost.
This guide covers the volume calculation for rectangular, circular, and triangular beds, the bulk vs. bagged cost comparison, how different mulch types settle over time, and when to add a waste buffer. Use the BidFlow Mulch Calculator to run your numbers - it supports all four shape types, optional waste factor, and a built-in cost estimator for both bulk cubic-yard pricing and bagged pricing.