Landscape boulder calculator
Enter how many boulders you want and their average size to estimate the total tons and cost.
Average size of one boulder, in feet:
How to measure
Pick a typical boulder for your project and measure its longest side (length), the side across (width) and how tall it stands (height). For a mix of sizes, run the calculator for each size and add the tons.
See all boulders and prices on the landscape boulders page.
Common questions
How much does a landscape boulder weigh?
Natural stone weighs about 165 lb per cubic foot. Because boulders are irregular, a boulder fills roughly half of its length x width x height box. A 3 x 2 x 2 ft boulder is about 12 cubic feet x 0.5 x 165 lb = about 990 lb, or half a ton.
How many boulders are in a ton?
About two 3 x 2 x 2 ft boulders, or six to eight 2 x 1.5 x 1.5 ft boulders. Bigger boulders mean fewer per ton.
How many boulders fit on a pallet?
Most pallets carry about 2 tons, but boulder pallets vary more than other stone because of their shapes. Large boulders over 500 lb are priced by the piece. Call us.
How are boulders priced?
Per ton, except flat-edged limestone (per truckload) and large moss boulders (per piece).