Office Phone: 636-332-1928
Chesterfield Office & Pick Up: 636-405-2667
email: [email protected]
View Address for Materials Pick Up


Topsoil Supply & Delivery in St. Louis

We have the best quality fill dirt, custom soil blends, and athletic field dirt that you could possibly need... read more


Compost Supply & Delivery in St. Louis

From leaf compost to manure compost, we have it all. We can even give you the option of custom compost blends to suit your needs... read more


Mulch Supply & Delivery in St. Louis

Our mulch is made of the finest oak and other hardwoods that have been locally sourced and ground to an even consistency... read more

Topsoil and Mulch Calculator

Topsoil and Mulch Calculator

Before you ever place an order for topsoil, mulch, or wood chips, you need to have an idea of how much you will need for your landscaping project. With our mulch calculator, you can figure out just how much you will need to order so that you can sufficiently cover the entire area without excess waste.

To learn more about our mulch calculator or to receive our expert advice on how to place bulk orders of the right size for any project, call us at 636-332-1928. We can also help you with the calculation if you have an irregular garden or unsure of your needs for a particular project.

Topsoil and Mulch Calculator

How much mulch do you need? Use our Topsoil and Mulch Calculator and find out. Enter the dimensions of the area you want to cover as well as the desired depth, click Calculate and the results will appear below.

Length: (feet)
Width: (feet)

You will need approximately:

* cubic yards of mulch.
* (3 cubic foot) bags.

*Please round all values up to ensure proper coverage.

How to Use Our Mulch Calculator

Here is our mulch calculator method:

  • Using a measuring tape, calculate the square footage of the area that requires topsoil or mulch. This step is simple enough and should not take much time, unless you have an irregular shaped garden or a large landscape. An approximation is enough to get you started.
  • Decide how deep you want the topsoil or mulch to be in inches. Our mulch calculator calls for about 2 to 4 inches of mulch or 8 to 10 inches of topsoil. This number may vary depending on the types of plants you have and whether or not they are fresh sprouts.
  • You can then multiply the area by this depth and you will have the volume of mulch or topsoil that you now require.

While ordering top soil and mulch is based on some estimates, it is best to order as close as possible to the exact right amount that you will need. Ordering too much will leave you with more product than your garden needs, and you may run the risk of over-mulching. Ordering too little will mean that you may have to place a second order. The mulch calculator is good for most situations, but if you are still unsure, it is best to have professional assess the area and give you an estimate on how much you will need.

Avoid the Dangers of Over-Mulching with Our Mulch Calculator

With our mulch calculator, you can get a pretty close estimate of how much mulch you will need to order. If, however, you make the mistake of ordering too much mulch, it is better to not use it than to over-mulch your garden. Here are some of the harmful effects that our mulch calculator can help you avoid:

Topsoil and Mulch Calculator: How much Mulch
  • Ordering too much mulch wastes money and time spent on buying and applying the mulch
  • The soil risks becoming water logged and the plants can suffer from root rot
  • Piling mulch against the trunks and stems of plants leads to asphyxiation and inner tissue death
  • Mulch that is piled against the stem can lead to fungal growth and Canker disease, which eventually kills the plant or tree
  • A thick layer of mulch releases too much heat for the plant, which can “burn” the roots and even prevent the hardening that plants naturally go through during autumn months, which may leave plants unprepared for winter
  • Mulch can become home for rodents and other harmful pests if used in excess. These animals take shelter in the warm mulch during winter and invariably end up chewing on your precious plants
  • Over-mulching can lead to changes in the pH levels of your soil, which will eventually kill the plants that thrive in the native soil

To avoid these hazards, it is best to use a reliable mulch calculator or to get the expert advice of a landscaper. Either way, it is always safer to err on the side of less mulch.

Need More Help with Our Mulch Calculator? Contact Us

Knowing how much topsoil or mulch you require is the second most important step to having a beautiful garden after understanding the kind of product you need. With a topsoil and mulch calculator, you can always be sure instead of making guesses.

If you need professional assistance with the mulch calculator or if you are unsure about the process, call us at 636-332-1928.