Mulch Depth and Bag Guide
Choose a mulch depth and convert landscape area into bags, cubic feet, or cubic yards.
Depth determines the volume
Mulch volume is area multiplied by depth. A 3-inch layer uses twice as much mulch as a 1.5-inch top-up over the same bed.
Bags are convenient, bulk is efficient
Bags work well for small beds and touch-ups. Bulk cubic yards are usually easier and cheaper for larger landscape projects.
Avoid piling mulch too deep
Very deep mulch can hold moisture against trunks and plant stems. Keep mulch pulled back from tree trunks and use only the depth the bed actually needs.