Tons & yardage by exact stone size curved beds included
Bed Shape
Good for round garden beds, tree rings, and fire pit surrounds.
For a stone ring around a tree trunk or fire pit — inner diameter is the open circle left empty.
Larger, more rounded stone creates bigger air gaps between pieces its effective weight per cubic yard drops even though each individual rock is heavier.
⚠️ Depth may be too shallow
Pin count covers the bed perimeter plus an allowance for interior seam overlaps. Roll length assumes a standard 100 ft/roll for the rolls-needed estimate — confirm against the specific product you buy.
Please enter valid dimensions first.
Estimated Material Needed
–US tons
Enter your project details and calculate to see results.
Estimate Your Cost
Decorative stone runs well above bulk aggregate — pre-filled around $150/ton as a starting point; swap in your local supplier's quote.
Real-World Purchasing Equivalents
Project Inputs
Estimates are approximate. Decorative stone density varies significantly by shape, sorting, and moisture always confirm exact tonnage with your supplier before ordering.
Picking the wrong river rock size is the single most common decorative-stone mistake, and it usually comes down to not matching stone size to depth.
3/4″ river rock is the smallest common decorative size it settles into a tight, even surface and works well for smaller beds and borders, at a shallower 2-inch depth. 2″ river rock sits in the middle, giving a chunkier, more natural look, and typically needs 3 to 4 inches of depth to look intentional rather than sparse. 1–3″ river rock is the largest common range, ideal for dry creek beds and drainage features, but it needs the most depth usually 4 inches or more or the ground shows through underneath.
QuickTonnage's calculator warns you if your entered depth looks too shallow for the stone size you've selected, something most competitor river rock calculators simply don't check for.
It depends on stone size, but roughly 80–100 square feet at 2 inches deep for smaller stone, less for larger sizes at a proper depth. QuickTonnage adjusts this automatically based on your size selection.
Typically 2,400–2,800 lbs per cubic yard depending on stone size and type larger stones generally weigh slightly less per yard due to more air gaps between pieces.
Usually $40–$100 per ton depending on size and finish, with larger decorative sizes costing more than small drainage-grade stone.
"River rock" specifically refers to smooth, water-tumbled stone. "Landscape rock" is a broader term that can include river rock, crushed stone, or other decorative aggregate river rock is a type of landscape rock, not a separate category.
Yes — enter the total square footage of your circular or ring-shaped area directly, and QuickTonnage handles the rest. This is a common gap in other river rock calculators, which often only support rectangular shapes.