How Much River Rock for a 10×20 bed?
This calculator is pre-filled to estimate the river rock for a 10×20 bed. Change any field to match your project, and enter your local price for a precise cost.
River Rock calculator
ft
ft
in
How to estimate river rock
- Lay landscape fabric under decorative rock to slow weeds and keep stone from sinking into soil.
- 2 inches covers for looks; 3-4 inches if you want full weed suppression and no soil showing.
- Larger stone needs a slightly deeper layer to fully hide the ground beneath.
Frequently asked questions
How deep should river rock be?
2 inches for decorative cover, 3-4 inches where you want the rock to fully hide the soil and suppress weeds.