Enter your bed dimensions and desired depth — get an instant cubic yard, cubic foot, and bag count. Supports multiple beds and different shapes.
How Much Mulch Do You Need?
Add each of your garden beds below. Mix and match shapes — rectangle, circle, or triangle. Enter depth in inches (or cm if you switch to metric). We'll calculate cubic yards, cubic feet, and the exact number of bags.
Units:
Bed 1
Mulch Calculator FAQ
How many bags of mulch do I need for a yard?
It depends on the depth. At 3 inches deep, 1 cubic yard covers 108 square feet. A 2-cubic-foot bag covers about 8 sq ft at 3 inches deep. Use the calculator above for your exact dimensions.
How deep should I apply mulch?
2 to 3 inches is the standard recommendation for most garden beds. Less than 1.5 inches doesn't suppress weeds effectively. More than 4 inches can suffocate roots and trap excess moisture against plant stems.
How much is a cubic yard of mulch?
Bulk mulch in the Richmond Hill area typically runs $30–$60 per cubic yard depending on type. Cedar and cypress are at the higher end; hardwood and basic bark mulch at the lower end. Delivery fees are usually extra.
How do I calculate mulch for irregular shaped beds?
For complex shapes, break them into simpler areas: a kidney-shaped bed can be approximated as a rectangle plus a half-circle. Add all the areas together, then multiply by depth. The calculator supports rectangles, circles, and triangles — combine multiple beds to handle complex shapes.
Should I remove old mulch before adding new?
Usually no. If the existing layer is less than 2 inches deep, top-dress with a 1–1.5 inch refresh to bring it back to 2–3 inches. If the existing mulch is compacted, matted, or more than 4 inches deep, remove excess before adding fresh material.
