## Soil Purchase

### Purchasing Topsoil

If your site has no soil you can buy it from the same companies who sell
gravel, sand, and bricks, or from a landscape supplier.
Topsoil is sold by the cubic yard (3 ft. X 3 ft. X 3 ft.) (DRAWING?)
- screened: all the rocks taken out
- unscreened: with rocks, but less expensive.

### How much will you need?

First, determine the square footage of the area you need to add soil to by
multiplying the length times the width. For example: a 10' by 8' garden
bed contains 80 square feet.

Here are two formulas to calculate the amount of topsoil you will need to
purchase:
- For a layer 9 inches deep: LENGTH X WIDTH divided by 36.
- For a layer 12 inches deep: LENGTH X WIDTH divided by 27

EXAMPLE: We want 12 inch deep soil in our 8' by 10' garden bed.

8' X 10' =80"

80' divided by 27 = 2.96

So why don't we order three cubic yards of topsoil?
**Another way to figure:**

For 9 inches, each cubic yard will cover 36 square feet.

For 12 inches, each cubic yard will cover 27 square feet.

Remember: You don't need topsoil for pathways, other paved areas, or in
utility areas, so subtract those areas from your calculations.