Formula
How this estimate works
bulk cubic yards = area x depth in feet / 27
A 500 sq ft area at 3 in deep with 5% waste needs about 4.86 cubic yards.
Ordering bulk mulch
Bulk mulch is usually ordered in cubic yards. Calculate cubic yards first, then check supplier delivery minimums and rounding increments.
Delivery planning
Plan where the load can be dumped and how far material must be moved. Delivery logistics can affect whether bulk or bags make sense.
Assumptions used
- Bag count uses the selected cubic-foot bag size.
- Coverage per cubic yard changes with depth.
- Bulk and bag costs are estimated separately so you can compare options.
Before you order materials
- Ask the supplier about delivery minimums.
- Plan a safe dumping location.
- Round up for curved beds and spreading loss.
Frequently asked questions
How is bulk mulch sold?
Bulk mulch is commonly sold by the cubic yard.
How much area does a yard cover?
At 3 inches deep, one cubic yard covers about 108 square feet before waste.
Should I order extra bulk mulch?
A small buffer helps with irregular beds, settling, and spreading loss.