What's your question? Ask


Q.How to figure out how much soil is required for a berm?

Zone 5b | nogreenthumb added on May 13, 2012 | Answered

There is an area 5 feet or sixty inches wide where I have removed an old, dying hedge and want to replace it with a berm. I can make the base of the berm nearly 5 feet or sixty inches deep, but how high can I make it, and how can I calculate how much soil I will need?

My first two “designs” were 12 inches/1 foot high, and then 16 inches or 1-1/3 feet high, but both seems too flat and blah on paper? Is there a formula or algorithm which would tell me:

1. For a berm with a 5 foot wide footprint, it can be ___ feet high at the center;

2. You need so many truckloads of soil, or fractions of a truckload, or cubic yards of soil for a berm five feet/60 inches deep and running 30-31 feet long and _____ recommended height?

For the one foot high and the 16 inch high berm, I calculated I would only need 2. 8 cubic yards for the 12 inch high berm, and only 3. 75-3. 87 cubic yards of soil for a berm 16 inches high.

These estimates seemed low, even given the short height 12-16 inches of the berm I want to build, and the berm seemed flat, as I wrote above, but how high can I build a berm — is there a table or a chart for good seived and steamed/weed free black topsoil required for such a berm? Thanks very much.

A.Answers to this queston: Add Answer
Certified GKH Gardening Expert

Log in or sign up to help answer this question.

Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert