Calculate your quantity
Use your measured area and the actual product specification. The result updates as you change an input.

How this estimate works
Pieces = measured edge run × (1 + allowance ÷ 100) ÷ piece length, rounded up.
The area and finished layer depth determine volume. Weight needs an actual supplier density, and bag count needs the labeled bag volume.
Before you order
- Check how much material is already in place.
- Confirm the desired finished layer depth.
- Compare bulk delivery with bags in the same volume unit.
Planning estimates can differ from delivered or installed quantities.
Reference
University of Minnesota Extension: Mulching for soil and garden health. Product specific rates and installation specifications take precedence over general defaults.