PURCHASE PLANNING
Mulch bags vs. bulk: compare your quotes
The cheaper option depends on the quantities you can actually buy and the prices you have been quoted.
First, compare the same volume
A 20 × 10 ft area covered 3 in deep needs 50 cubic feet, or about 1.85 cubic yards. With 2 cu ft bags, that is 25 whole bags. Compare that with the quantity the bulk supplier will actually bill: if the increment is half a yard, 1.85 rounds up to 2 cubic yards.
Include delivery and order increments
For illustration, 25 bags at $4 each cost $100. A bulk quote of $35 per cubic yard, billed for 2 yards, plus $50 delivery totals $120. Bags cost $20 less in this example, before any bagged delivery or taxes. These are sample numbers, not current market prices or a universal rule about which option is cheaper.
Ask the supplier for their minimum order, billing increment, delivery charge, and any extra fees. Also confirm where material can be unloaded. Put your actual quotes into the Mulch Calculator.
Check the volume printed on the bag
Bag weight is not a substitute for bag volume. A 2 cu ft bag and a 3 cu ft bag cover different areas at the same depth. For several beds, add their volumes first, then round up to whole bags once.
Quantity is only part of the decision
Storage space, access for a delivery truck, lifting and moving bags, and the material itself also matter. This tool compares quantities and entered prices; it does not recommend a supplier or determine whether a material suits your plants.
Reference: University of New Hampshire Extension: volume and cubic-yard conversion.