The short answer is that most landscape beds should be measured in square feet and then converted to cubic yards using the depth you want. A 3-inch layer is the most common choice because it gives solid coverage without burying plants or making the beds look heavy.
If you are trying to decide whether to order a little more or a little less, it is usually better to round up slightly. That gives the crew enough material to finish evenly and keeps the project from stopping short at the end.
The Quick Formula
Square feet x depth in inches / 324 = cubic yards.
Example: 500 square feet at 3 inches deep works out to about 4.6 cubic yards. Most homeowners would plan on 5 yards so the install can be completed cleanly.
Measure the Beds First
Measure each bed separately if the property has a front yard, side yard, and back yard. Different shapes can add up quickly, especially around trees, foundation lines, and curved edges.
If the area is irregular, break it into simple rectangles or squares and add the totals together. That approach is faster and easier than trying to guess from a photo.
Check the Depth
- 2 inches is a light refresh.
- 3 inches is the standard install depth.
- 4 inches is for bare beds that need stronger coverage.
Use the Rest of the Site to Finish the Plan
Once you know the rough yardage, compare the pricing guide, review the timing guide, and look at the service area page before you send in the quote form. If your beds are curved or hard to measure, use the landscape bed measuring guide first.
See what changes a real installed price before you book.
Seasonal Best Time to Mulch in MichiganPick the right season for your property and schedule.
Measure How to Measure Landscape BedsBreak curved and irregular beds into simple sections.
How Much Mulch Do I Need? FAQ
How do I figure out how much mulch I need?
Measure the bed square footage, choose a depth, and divide by 324 to estimate cubic yards.
How much does one yard of mulch cover?
One cubic yard covers about 108 square feet at 3 inches deep.
Should I round up my mulch estimate?
Yes. Rounding up slightly helps the crew finish evenly and avoids running short at the end of the install.