Total Landscaping Rock Needed (in cubic yards) = (Length (in feet) x Width (in feet) x Depth (in feet)) / 27 Here's the formula to calculate the total amount of landscaping rock needed: This calculation takes into account the total area and the desired depth, ensuring an accurate estimation of the volume of rock needed. Calculate the Total Rock Needed: Next, the calculator will estimate the total amount of landscaping rock required in cubic yards.This value represents the surface area that needs to be covered with landscaping rock. Calculate the Total Area: The calculator will process the entered measurements and provide you with the total area in square feet.Make sure to use consistent units of measurement, such as feet or meters. Input the Measurements: Enter the measured length, width, and desired depth into the corresponding fields of our calculator.It could be a thin layer for decorative purposes or a thicker layer for practical applications like weed suppression or erosion control. Determine the Depth: Decide on the desired depth of the rock layer as one layer might not be enough.Use a tape measure or any other appropriate measuring tool to obtain accurate dimensions of the needed coverage area. Measure the Area: Begin by measuring the square footage, including the length and width of the area where you plan to install the landscaping rock.Follow these steps to accurately determine how much material is required: Calculating the right amount of stone needed is the first step you should take before starting your project.Calculating the amount of landscaping rock needed for your project area is made simple with our Landscape Rock Calculator. It can also be a great way to make your home stand out when used decoratively in landscaping beds around the house.

Compact decomposed granite to a minimum depth of 2″ for pathways and other decorative landscape areas and 4″ for drivewaysĪdding stone to your landscaping is crucial for proper retaining wall and pathway installations.Use 1″ of concrete sand on top of a paver base foundation to allow for easy leveling of paver stones or bricks.Install crushed limestone/traffic bond/paver base 4″-6″ deep as a base material when installing paver paths, walkways and driveways.For decorative purposes, install river rock at least 2″ deep Recommended Depths for Walkway and Driveway Foundations Crushed Limestone/Paver Base/Traffic Bond.For decorative purposes, install pea gravel at least 2″ deep.Calculate French drain gravel needed here. Fill from the bottom of the trench up to a few inches below the surface to leave room for top soil.

For French drain installations, use washed gravel as back-fill in a trench that is a minimum of 8″-12″ deep and 6″ wide.

For retaining wall back-fill, install washed gravel a minimum of 12″ deep from the back of the wall for proper drainage.

Recommended Depths for General Landscaping It’s much easier and cheaper to lay extra stone than to have to pick up more or have more delivered.

When ordering stone, it’s always a good idea to order 10% extra in case you end up short.

Tips for Landscaping with Stone Order Extra Some recommended depths for different types of stone and sand are given below. The diagram below shows an example of how to break down your project area into simple shapes.Īfter you have the shapes broken out and the dimensions of each, plug them into the calculator.įinally, decide how deep you want your material to be and hit calculate. Then, break down your project area into rectangles, circles, and triangles if the area is unknown. How to Use the Calculatorįirst, decide what material you will use. These densities can vary significantly from supplier to supplier, due especially to different moisture contents. *NOTE – The materials densities are averages derived from multiple landscape material suppliers.

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