How much topsoil should I use?

To fill a garden bed, you need at least 8 inches of depth of topsoil. New lawns will do best if you spread a layer of 3-6 inches of topsoil before planting.

Explore further detail here. Simply so, how do I calculate how much topsoil I need?

To calculate how much topsoil you'll actually need, multiply the number of square feet in the area by the number of inches of topsoil you want to install. Divide that number by 324.

One may also ask, how much does a 40 lb bag of topsoil cover? A 40 pound bag of topsoil covers 12 square feet (one inch deep).

Then, does grass grow in 2 inches of soil?

(Grass and weeds will grow through soil 2 or 3 inches thick quite easily.) Blending lawn requires patience. Sod was used in places where 2 inches or more of soil needed to be added. In areas where we put down less than 2 inches, the old grass will grow through and blend with the sod (under 2 to 3 inches).

How thick should topsoil be?

The depth of topsoil is rated from very shallow, which is less than 10 inches deep, to very deep, which is more than 60 inches deep. Plants grow best in topsoil rated deep, which is 36 inches, to very deep.